Cellular Viewer

This app allows you to view detailed 4G/5G cellular network information on your Android device, including cell towers, signal strength, and carrier aggregation status. It uses a modified version of flutter_cell_info, which makes use of NetMonster Core and also Android ServiceState.

All Features

• 4G LTE

• 5G NR (SA/NSA)

• IMS Status (VoLTE/VoNR/WiFi Calling)

• Carrier Aggregation information

• Signal strength metrics (RSRP, RSRQ, SINR, TA - 4G only) with color-coded indicators

• Roaming Status

• Overlay mode for continuous band info monitoring while on other apps

• Debug mode to view raw data from the device

• ⚠️ This app does NOT work under 2G and 3G networks

• ⚠️ Newer versions of the app does NOT work on legacy Android devices, though exact versions unknown, fixed planned

  Track it in #4

Tested Systems

Modem	Samsung Exynos 5G	Xiaomi Qualcomm 5G	Samsung Qualcomm 5G	Sony Qualcomm 4G	MediaTek
Test Device	Samsung A56 5G	POCO F8 Pro	Samsung S23+ (Friend)	Sony Xperia XZ	---
4G LTE	✅ Good	✅ Good	✅ Good	❌ Broken - Only broken in newer versions, older ones work - Likely due to old Android APIs not being called in newer versions for optimization instead of a chip imcompatiblity - Fix planned but no ETA, not high priority (#4)	❓ Untested
LTE CA	✅ Good	✅ Good	✅ Good	❓ Untested	❓ Untested
5G NR (SA)	✅ Good	✅ Good	❓ Untested	---	❓ Untested
NR CA (SA)	✅ Good	❗ Limited - Yes/no only - no band info & CC count	❓ Untested	---	❓ Untested
5G NR (NSA)	✅ Good	✅ Good	❗ Limited - No band info	---	❓ Untested
NR CA (NSA)	❗ Limited - No band info, guess CC Count - Sometimes it can grab a secondary band, but disappears quickly. In these cases it will be displayed while available. - Accuracy of it is unknown but it seems to be mostly correct	❓ Untested	❌ Unsupported	---	❓ Untested
mmWave	❓ Untested, not supported by test device
Carrier Info	✅ Good	✅ Good	✅ Good	❓ Untested	❓ Untested
Roaming Status	✅ Good	❓ Untested	❓ Untested	✅ Good Indepdent on & can be reliably detected even without 4G info	❓ Untested
VoWiFi	✅ Good	✅ Good	✅ Good	❓ Untested	❓ Untested
VoLTE	✅ Good	✅ Good	✅ Good	❓ Untested	❓ Untested
VoNR	✅ Good Cannot detect half-baked deployments where it will actually fallback to VoLTE when connecting to call	✅ Good	❓ Untested	---	❓ Untested

 

Installing Cellular Viewer

Method 1: F-Droid (Recommended)

You may get this app from the F-Droid Repo: https://repo.spookysrv.com/fdroid/repo/
Updates will be delivered automatically through F-Droid.
Note: This is not the official F-Droid repository. Anti-Features may not be fully accurate with official definition.

Method 2: APK Sideload

You may download the latest APK from the Releases page: https://github.com/SpookyKipper/CellularViewer/releases

Contributing

• Please change the flutter_cell_info package source in pubspec.yml to the GitHub Repository provided, or else you will not be able to build the app.
• The modified flutter_cell_info package is open source but subject to a different license than CelluarViewer, please refer to the package license for more information. While being a fork with the same license, it is not planned to be contributed back to the upstream.
• Please change the spookyservices package source in pubspec.yml to the GitHub Repository provided, or else you will not be able to build the app.
• Please note that the spookyservices package is open source and just subject to a different license than CellularViewer, please refer to the package license for more information.
• When creating a pull request, please make sure the spookyservices and flutter_cell_info package source in pubspec.yml points to the original local path.