New in version 3.1.2
3.1.2 — small interface update. Installs over any 3.1.x and keeps its data; no rule changes.
- Topology: the ALL, LEARNED and REVIEW filters show how many routes each one has.
- New screenshots of the current version.
ICdetection is an open-source tool for auditing the cellular environment from Android, without root.
It shows what Android's public telephony APIs report (cell identity, MCC, MNC, TAC, PCI, ARFCN, signal and Timing Advance when available) and combines conservative heuristics to flag anomalous behaviour. Alerts need temporal confirmation to reduce false positives.
It does not guarantee IMSI-catcher detection: Android apps cannot inspect RRC or NAS traffic or the modem. An alert is an anomaly worth reviewing, not proof of surveillance.
Works without Internet: no Internet permission, no ads, analytics or trackers. History stays on the device unless you export it.
Permissions:
• Location: Android requires it for cell information; also used for geographic checks.
• Phone state: reads the network and visible cells.
• Network state: only to know if data uses Wi-Fi or mobile data.
• Foreground service, notifications and wake lock: keep monitoring running and visible.
• Run at startup: only for the optional reminder after a reboot (off by default).
Results depend on the phone, modem, firmware and Android version. Requires Android 12 or later.
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Versions
Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.
Download F-Droid
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arm64-v8a
armeabi-v7a
x86
x86_64
This version requires Android 12 or newer.
It is built and signed by the original developer, and guaranteed to correspond to this source tarball.
Permissions
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access approximate location only in the foreground
This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
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access precise location only in the foreground
This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
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view network connections
Allows the app to view information about network connections such as which networks exist and are connected.
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run foreground service
Allows the app to make use of foreground services.
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run foreground service with the type "location"
Allows the app to make use of foreground services with the type "location"
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show notifications
Allows the app to show notifications
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read phone status and identity
Allows the app to access the phone features of the device. This permission allows the app to determine the phone number and device IDs, whether a call is active, and the remote number connected by a call.
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run at startup
Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
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prevent phone from sleeping
Allows the app to prevent the phone from going to sleep.
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com.alexisgordr.icdetector.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Download APK
3.2 MiB
PGP Signature
|
Build Log
New in version 3.1.1
3.1.1 — bug fixes for 3.1.0. Installs over 3.1.0 and keeps its data; no rule changes.
- Clean install: the welcome screen no longer warns about data from another install.
- Welcome screen: title without a version number, no longer under the status bar.
- Notifications show the app's own icon instead of a generic one; alarms keep the warning triangle.
-
arm64-v8a
armeabi-v7a
x86
x86_64
This version requires Android 12 or newer.
It is built and signed by the original developer, and guaranteed to correspond to this source tarball.
Permissions
-
access approximate location only in the foreground
This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
-
access precise location only in the foreground
This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
-
view network connections
Allows the app to view information about network connections such as which networks exist and are connected.
-
run foreground service
Allows the app to make use of foreground services.
-
run foreground service with the type "location"
Allows the app to make use of foreground services with the type "location"
-
show notifications
Allows the app to show notifications
-
read phone status and identity
Allows the app to access the phone features of the device. This permission allows the app to determine the phone number and device IDs, whether a call is active, and the remote number connected by a call.
-
run at startup
Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
-
prevent phone from sleeping
Allows the app to prevent the phone from going to sleep.
-
com.alexisgordr.icdetector.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Download APK
3.2 MiB
PGP Signature
|
Build Log
