GlassWire’s new Android Firewall is here!

We are excited to announce that our newly updated GlassWire Android Firewall app is now available for download in Google Play!

GlassWire Android Firewall App

How does it work?
GlassWire for Android now has a brand new “Firewall” tab.  Tap the top left GlassWire menu and choose the Firewall option to get started.

With our new firewall you can block app network access completely, or block only WiFi or mobile connections. For example, if you want your browser to only use WiFi data and never use mobile data turn on the GlassWire firewall, then tap the WiFi tower icon next to the browser you want to block.

Ask to connect?
You can also block newly installed apps from accessing the network at all.  Once the firewall is on, switch the “automatically block” option on.  GlassWire will then send you a notification when a newly installed application tries to access the network.  You can then allow or deny that application immediately.  Want to block all mobile or WiFi network activity for all apps?  Tap the WiFi and Mobile icons under the “All Apps” row and block all the apps at once!

*Please note you may sometimes still get “new” notifications from blocked apps, but these connections are black-holed and never leave your device.

With GlassWire’s new mobile firewall you can block spying apps, apps inundated with pop-up ads, or data hogging apps that can make you go over your monthly data limit.  Data hogging apps can also cause your phone to have a slow Internet connection.

Unlimited themes!
If you purchase GlassWire you also get access to unlimited themes, including our dark themes.  Did you buy GlassWire themes before with our previous version?  Don’t worry!  You should still have access to all your purchased themes.  If you run into any issues please email us and we will fix it!

How is GlassWire different from other data managers or firewalls?
Did you know most other data manager apps in Google Play exist solely to collect your data usage stats, and sell your private data to third parties?  Large companies want to know what the most popular apps are in the app store, then copy their features, or even acquire them.

Have you ever wondered why another data manager app you used was using so much mobile data itself?  If you’re using another firewall or data manager please check their privacy policy.  You might be surprised that not only do they collect personal identifiable information about you, but they store your data usage stats in a database.

The difference between GlassWire and other data usage and firewall apps is that WE NEVER COLLECT YOUR PERSONAL INFORMATION!  Our GlassWire app never even accesses the network at all, so we couldn’t see your app usage information even if we were asked to under a court order.  Check out our privacy policy for more details.

GlassWire also never shows you any mobile ads that clutter up your screen or annoying sponsored pop-ups that waste your data and slow your phone to a crawl.

If you support privacy please consider buying our new Android firewall option with unlimited themes!  It’s only a few dollars and your support goes a long way to help us continue improving this app.

How much does it cost?
GlassWire for Android will continue to be free as is for unlimited use.  However, if you want to use our new firewall features it’s only a few dollars ($4.99) per year.  Your financial support allows us continue making improvements on GlassWire for Android.

If you aren’t sure you want to buy the software we include a free 30 day trial for everyone!  Everyone getting this update can try it for free for 30 days for absolutely no charge.

Please also note that GlassWire will occasionally show “new” network activity alerts with apps that are blocked by the firewall.  This is not actually a bug with GlassWire, but this is how the Android OS functions.  The Android OS sees these apps as accessing the network and may count some data used with them.  However, these apps are actually black-holed by our firewall and their connections never leave your phone.  We’ve included a note about this inside the app itself to help avoid any confusion.

Also, if you’re new to GlassWire for Android and you’re worried about our “phone” permission, technical details are here on why we have to request that permission.  We’d love to request no permissions at all if it was technically possible, but the mobile “phone” permission is required for our app to show you your mobile phone data.

Thanks for your support and we hope you enjoy our new Android firewall update with unlimited themes!

Get the GlassWire Firewall for Android now!


GlassWire 2.0 launches today!


We’re excited to announce that GlassWire 2.0 is now available for download.  This major update is a free upgrade for 1.0 paid users, and for free users GlassWire now includes a fully unlocked free 7 day trial!

(Run into a problem with the upgrade?  Check out these tips.)

What’s new with GlassWire 2.0?

Earlier this year you may have received a survey request from us asking what you wanted from GlassWire. We went through your survey and tried to implement as many as your requests as possible, and we hope we’ve accomplished that with GlassWire 2.0.

High DPI Support – One of the top requests from users was support for high resolution DPI monitors, and GlassWire now fully supports high resolution monitors.  You can now change your monitor resolution and GlassWire itself will change sizes to support those resolutions.  GlassWire also now has excellent dual monitor support so you can drag it between multiple monitors if you choose to do so.

Data Usage Improvements – After launching our popular Android data usage app, we found a lot of our Windows users were unhappy with how GlassWire’s usage window worked.  We changed GlassWire 2.0’s usage window to better match our Android app.  Now it’s much easier to keep track of how much data your PC is using every month.  Also, if you want to track your data usage in detail go to GlassWire’s top left GlassWire menu and choose “settings” to set up a Data Alert.  GlassWire’s Data Alerts can warn you before you go over a data usage limit.


Firewall Profiles – Another request we saw was a wish for firewall profiles.  Now you can go to GlassWire’s Firewall tab and click the top middle “Firewall Profiles” down arrow.  You can now create a new firewall profile and save it.  For example if you’d like an “Ask to connect” profile for public WiFi you can now set it up and save it and switch to it when you’re not at home or work.

Firewall Improvements – Many people commented on how GlassWire’s Firewall worked, and how they wanted better compatibility with the Windows Firewall.  With GlassWire 2.0 we have made our firewall rules sync with Windows firewall, plus GlassWire can check your Windows Firewall and restore it if changes are made without your knowledge.

Security Analysis – Another top request was that people wanted to know more details about the apps that were accessing the network on their PC.  You can now go to GlassWire’s settings to turn on the VirusTotal API to analyze network-related files on your PC.


Do you have an Evil Twin lurking about? – A new type of network attack is known as an “Evil Twin” attack.  This type of attack occurs when someone sets up a new WiFi access point with a name similar to your current WiFi access point.  GlassWire watches out for these types of attacks by warning you if the Mac address of the WiFi access point you’re on changes.  Of course if you’re using something like a mesh network with repeaters you may get occasional alerts, but as GlassWire learns these new access points over time the false alerts should stop.  Also, if the WiFi access point you’re on loses its password you’ll also be alerted.

A 7 day trial – A lot of our free users asked to have a GlassWire trial of our paid features, so we have enabled a 7 day trial that starts on installation of GlassWire.  After the trial ends GlassWire’s security features and blocking reverts to its free status (similar to GlassWire 1.0’s free version).

Ready to upgrade to GlassWire 2.0?  Give it a try now!

Download GlassWire 2.0Change ListUser guide

Having technical problems?  Check out these tips in the forum.

Are we still missing some features you’re wanting?  Now that GlassWire supports high DPI we can move faster and add more features.  We’re going through your list of requests in the survey we sent and we’re implementing them as quickly as possible.

Want more features?  Let us know what you want in the comments below!

Thank you for your support and we hope you enjoy GlassWire 2.0!








GlassWire Data Usage for Android Update

We’re excited to say we just released an update for our popular GlassWire Data Usage app for Android.  This new update includes dark themes many of you requested.  These GlassWire premium paid themes support future GlassWire development and we hope you’ll consider buying a theme or two.

This update also includes a fix for Android O so GlassWire’s persistent notification is easy to read, plus some other bug fixes.

Speaking of our persistent notification, a common question people ask us is why can’t it be disabled?  The reason for this is because Google Play requires any apps that run in the background have a persistent notification for security reasons, so the user realizes that app is running.  Our GlassWire app has to run in the background to keep track of your mobile data.  To learn more about these rules check out this web page by Google itself.  Also, if you’re wondering why we request the “phone” privilege, it’s because we have to request this to see the phone’s mobile data usage as explained here.

Thanks for all your feedback and support and please go to the top left GlassWire menu and choose “send feedback” to send us feedback or report bugs.

Get GlassWire for Android Now! 


Is your Data Usage or VPN app spying on you?

When we first started testing our GlassWire Android app against other popular data usage apps we made an upsetting discovery.  We were shocked to find that many of the data usage apps we tested were using a lot of mobile data themselves.  Our team wondered why an app that claims to help save mobile data would use so much mobile data itself.

The reason became clear once we started to look more closely at other data usage app privacy policies.  Many of these apps are made solely to log what apps you use and when, then to store that data in a database to sell to third parties.  The worst part about it was that some of these apps even seem to be storing personally identifiable information of their users.  This means that if their database was hacked not only would your app usage history be leaked, but that app usage history could be publicly linked to your identity.

After learning how these other apps were operating behind the scenes we decided to call our Android app “data usage privacy” to make it clear that with GlassWire your data and app usage never leaves your phone.  We are a privacy and security company and we make money through sales of our popular Windows security software, not by spying on our users.

Recently Facebook’s Onavo data usage app was in the Wall Street Journal due to its monitoring of its users, and according to Ars Technica the popular VPN Hotspot Shield has now had a formal complaint filed against it with the FTC.  It’s good that the media, app users, and privacy organizations are starting to take notice of privacy violations with apps and online services.

When using an app that accesses your network activity or app usage data always check its privacy policy.  If the app is free and you see no way for it to make money then you and your data might be the product.

If you want to see what apps on your phone are using your data or phoning home right now try GlassWire for Android.  With GlassWire your data never leaves your phone.  We’re working hard to add more privacy related features to our Android app in the future so you can see what other apps on your phone are doing behind the scenes.


Add zero-rated apps for your mobile data plan

A new version of GlassWire for Android is here and it lets you add zero-rated apps to your data plan.  Does your mobile phone provider let you use certain apps that don’t count towards your monthly data allocation?  If so GlassWire for Android can help.

First install GlassWire for Android, then go to the “Data Plan” screen by tapping the top left three line menu.  Look for where it says “zero-rated apps” and then pick the apps that your mobile phone company lets you use unlimited data with.  For example if your mobile provider gives you free data with Facebook or Netflix tap those apps.

Now set up your data plan and you should be good to go!

Download GlassWire for Android Now!


GlassWire Android Permissions

Since launching the Windows version of GlassWire in 2014 we have been fortunate to have millions of downloads of our Windows software.  A lot of our Windows users use our software because they are concerned about their privacy and security.  Others use our software to help stay under their data limits.

Now that we’ve launched our new Android app, some new Android users who are unfamiliar with our Windows software have had some concerns about the Android OS permissions we request.  We wanted to write this Blog Post to explain what permissions our Android app asks for and why.

One of the first permissions GlassWire asks for is the “Phone” permission.  Some people have asked us why GlassWire needs the ability to make phone calls, and of course GlassWire does not make phone calls with your phone.  So why does GlassWire need the “phone” permission?  Unfortunately the Android OS requires this permission for us to see mobile network data for your phone.

To receive mobile traffic stats the Android OS requires that we use the NetworkStatsManager Android API.  To access this API we need the phone SubscriberID, and to see this ID the Android OS requires the READ_PHONE_STATE permission, and that’s why GlassWire asks for permission to access your phone during its setup.

You’ve probably noticed that all similar apps to ours that read mobile phone data require the same “phone” permission.

We would prefer to ask for no permissions at all if it was technically possible, but this is how the Android OS works.  There is no advantage for us to ask for permissions we don’t need.  Asking for permissions causes more complexity and development time for our app, but in our case the “phone” permissions are required to see how much mobile data your phone is using.

If you’re still concerned about using GlassWire on your Android phone please check out our privacy policy  Our Android app has no ability to access the network at all so we could never see your network data even if we wanted to.

Unfortunately other data usage apps in the app store don’t always work the same way.  If you check their privacy policies you’ll find that a lot of these apps seem to exist solely to collect your app usage information and to sell it to third parties.

You’re probably wondering why GlassWire doesn’t collect and sell your data.  We don’t sell your data or collect it because we are a privacy and security company.  We focus on making sales through our Windows software, not through ads or selling your data.

You should always use caution when granting permissions to apps on your phone.  Especially use caution when granting permissions to free apps and always check their privacy policies.

GlassWire for Android is available in Google Play.





GlassWire for Android is here!

GlassWire for Android is now available and FREE in the Google Play store!

Millions of our GlassWire for Windows users have been asking for GlassWire on their mobile phones so they can see what their phones are doing over the network.  We worked long and hard to create this first version of GlassWire for Android that’s 100% free with no in-app purchases or ads.

Our brand new Android app lets you instantly see which apps are wasting your data, acting suspiciously, slowing your phone’s Internet speed, or causing you to go over your carrier data limits. GlassWire for Android makes it easy to keep track of your mobile carrier data usage and WiFi Internet activity.

Key features:
• See a live graph of what apps are currently using your carrier data, or slowing your Internet connection.
• Instantly know every time a new app accesses the network and begins using your data.
• Go back in time with GlassWire’s graph to see what apps wasted your data earlier in the week or month.
• GlassWire’s data alerts help keep you under your data limit. Get alerted before you reach your carrier data limit to avoid costly overage fees.
• GlassWire reveals unusual network activity from unknown apps or malware that could be violating your privacy or spying on you.
• GlassWire counts your mobile carrier data (Edge, 3G, 46, 5G, LTE, CDMA, UMTS, GSM, GPRS, mobile hotspots) and shows you detailed usage statistics on GlassWire’s “Usage” screen, along with your WiFi data. See your mobile phone provider data for AT&T, Verizon, Sprint, T-mobile, Virgin, Vodafone, Orange, EE, 3, Swisscom, Telia, Movistar, O2, and all others.
• See data usage for different apps like Snapchat, Facebook, Twitter, Pokemon Go, Netflix, Youtube, Instagram, Pandora, Spotify, Pinterest, Whatsapp, Skype, Kik, and any other apps you use.

Why did we make GlassWire for Android?
We wanted an easy way to see what Android apps were using all our expensive mobile data, slowing our Internet connection, or behaving suspiciously.
Our company already makes a popular GlassWire application for Windows that helps people protect their PCs from online threats by visualizing their network activity. We wanted a similar network monitoring application for our own Android phones but we were shocked to find a lot of the data usage apps we tested sent quite a bit of data over the network themselves.
We wondered why these apps that claimed to help people stay under their data limits would send network data themselves.

Why do many free “Data Usage” apps use data themselves?
We discovered a lot of these free data usage collection apps exist solely to collect your personal app usage data to sell to advertisers or other app developers. We did not want to use a data usage app that was logging details about every app we use to share it with third parties. In what database was our private app usage data being stored, and what if that database was hacked or made public? To make matters worse, we found that at least one of these applications collected personally identifiable information.

Is your current “Data Usage” app tracking you?
Do you want your phone app usage logged in a database then linked to your identity so others can see details about how you use your phone every day? We didn’t want that either. Check the privacy policy of the data usage app you currently use by going to their Google Play app page “privacy policy”.

GlassWire is a data usage app that helps protect your privacy.
Your GlassWire data usage and app usage information never leaves your phone. We could not see or access your app usage even if we wanted to. Plus, we’re not an advertising or marketing company. We only make money through sales of premium versions of our software.

This is the first version of our mobile software and we are already working on adding new features.  Thanks for your previous support with our Windows software and we hope you’ll give our new Android app a try.

Get GlassWire for Android Now (FREE)

Sincerely, The GlassWire Team


Upgrade to GlassWire 1.2.96

GlassWire 1.2.96 is now available for download. This update allows you to easily switch firewall modes by right clicking the GlassWire icon in the bottom right Windows tray area.  Thanks for requesting this feature in the forum so we could add it for you!

What else is new in this update?

  • The year is now added to the GlassWire network tab.
  • Three security upgrades were made due to HackerOne bug reports.
  • We fixed a problem where a network scan could cause the GlassWire service to crash.
  • We added protection so third party DLL files can no longer interact with GlassWire and cause it to crash.  Getting .dmp files on your desktop?  This update should solve that for you.


Download GlassWire 1.2.96 now to upgrade!



GlassWire 1.2.88 is here!

In our previous GlassWire update we changed how the “network” tab works by using new technology and making GlassWire scan more often for other network devices. Unfortunately, for some sophisticated network hardware and software, this constant scanning would give off false positive alerts saying GlassWire was causing network problems. In some cases the false positives would say GlassWire was causing an “ARP Storm”.

We solved this issue with GlassWire 1.2.88 by adding a manual “scan” button on the “network” tab. Paid GlassWire users now have a scan once every 30 minutes, or they can choose to scan manually any time. Free GlassWire users never scan the network at all unless they manually press the “scan” button.

Paid users can also disable the network scan completely if they want. To disable GlassWire’s network scanning feature as a paid user you can create a text file called glasswire.conf and place it in the c:\programdata\glasswire\service folder. Add this string to the text file: enable_network_scan = false then restart the GlassWire service. We plan to add a setting for this in the future.

This update also fixed some bugs reported by users, plus fixed a bug that caused some users to crash in some cases.

If you’re a free user and you’re curious about what the “network” tab does, it’s actually a fun feature.  If you buy GlassWire Basic, Pro, or Elite then GlassWire can alert you whenever a new unknown device joins your network.  GlassWire will then tell you some details about the device like its IP and what type of hardware it is.  For example if it’s an iPhone it will say it’s “Apple” hardware.

Please upgrade your GlassWire version today, and we at GlassWire wish you all a Happy New Year!

Download GlassWire 1.2.88 NowChange List


Detecting Malware with GlassWire

People often ask us how we came up with the idea for GlassWire.  The answer is, we built GlassWire because it was something we wanted for ourselves for our own PCs. Our team had tested all the different security software out there for our own personal use, but none of it did what we needed.

We wanted an application that looked at our PCs and exposed any network related changes that were taking place in real-time.  For example, if a network-connected application changes its hash or loses its signed certificate GlassWire tells you.  Or any time a new application on your PC accesses the network GlassWire tells you immediately with a “new” alert.

GlassWire also alerts you of software version changes, network related changes to Windows, new proxy connections, DNS server changes, along with letting you know of known suspicious hosts your PC is interacting with.

Our GlassWire theory is that modern malware will almost always make some kind of network related change to your PC.  We thought that if we were able to make it easy for normal people to see the network related changes that were happening on their PC then they would be able to catch malware that an antivirus might miss.  Also, we wanted to create something that any normal person could use and understand.

When we launched GlassWire, one of our first users emailed us and let us know he caught malware his antivirus had missed and we blogged about it.  The malware was starting new proxy connections from the infected PC and sending out huge amounts of data.  These multiple proxy connections and high data usage showed up in the GlassWire graph and warned the user something was wrong (as shown below).

So how can you use GlassWire to look out for possible malware infections?  We made a guide in our help area to help people check for malware infections.

First download and install GlassWire, then check the graph and see if you notice anything unusual happening.  Are there strange proxy connections when you don’t normally use a proxy?  Are there strange applications listed under the GlassWire “firewall” tab?  Did your DNS server change after installing that new ‘free’ program?  Are you seeing huge amounts of network activity when your PC is idle?  These PC behaviors can be a sign something is wrong.

It sounds counter-intuitive if your antivirus is failing you, but we recommend doing an antivirus scan if you’re worried about a problem.  Before doing the scan you should make absolutely sure your antivirus is up to date.  If your antivirus can’t update because it expired then uninstall it and try another program, or use Windows Defender to scan.  Windows Defender is free and part of Windows. Using Windows Defender to scan a second time could be a useful double-check even if your main antivirus is working OK.

If your antivirus doesn’t see anything but you still feel something is wrong you can try using to look for malware.  VirusTotal checks files against all popular antivirus engines and shows you if any antivirus programs mark your file as suspicious.  Look at your GlassWire Firewall tab and find the locations (on your PC hard drive) of any network-related applications that seem suspicious.  Click on the icon of the suspicious application and see if it’s signed at all, or signed by someone you recognize.

If the application seems suspicious find its location that GlassWire lists on your PC, then copy the file to your desktop (preferably without moving it) and upload it to and see its rating.  If VirusTotal shows that several antivirus applications have detected the application as malware, then you might be infected.

GlassWire also shows the hosts your PC is connecting with in real time.  If you see a spike in the GlassWire graph, click the graph to see what apps and hosts are responsible for the increase in network activity.

GlassWire automatically resolves the host names your PC is communicating with in real time, plus you can also check the flag next to the host name to see what country the server is in. For example if the host name shows an American flag the host is probably located in the USA.  If you’re unsure about the host you can also type IP addresses in to VirusTotal to check their safety.  If nothing shows up in VirusTotal for the host name you entered you can also consider typing the host into Google to see if anything unusual comes up.

Still feeling paranoid?  Try Microsoft’s Malicious Software Removal Tool and see if it comes up with anything.  And as always, GlassWire fans are glad to give their feedback in our forum any time you need help.

Also please consider upgrading to GlassWire Basic, Pro, or Elite to block all new connections with our paid Ask to connect mode.

Unfortunately there is no perfect tool for detecting and removing malware, but we hope this guide helps you understand how to use GlassWire to look for suspicious activity.