Spectre
Spectre is a free, open-source developer tool for Android. Radio frequency scanner with recon and offensive capabilities. It has 182 GitHub stars and is released under the GPL-3.0-only license, and you can install it from F-Droid.
- Android
- Kotlin
- Developer & terminal tools
- Actively maintained
About Spectre
Spectre is an Android app for observing and interacting with the wireless environment around you. It monitors signals from Bluetooth devices, Wi-Fi access points, cellular towers, and GNSS satellites. Spectre also features a growing set of pentesting tools, constrained by Android's security model. Features: • RF exposure - total received power from cellular, Wi-Fi, and Bluetooth as one live dBm reading • Cellular - serving and neighbor cells on 5G, 4G, 3G, and 2G, across both SIMs • Wi-Fi - 2.4, 5, and 6 GHz access points, with security analysis and 802.11mc FTM ranging • Bluetooth LE - advertising devices with decoded manufacturer data, including iBeacons • GNSS - multi-constellation,…
Privacy and F-Droid
F-Droid builds Spectre from its published source code and flags anti-features such as ads, tracking or reliance on non-free services.
No anti-features flagged on the latest F-Droid build.
Similar apps
More open-source developer and terminal tools
RustDesk
rustdesk/rustdesk
An open-source remote desktop application, the TeamViewer alternative.
Developer & terminal toolsAndroidGodot Editor 3
godotengine/godot
All-in-one, cross-platform game engine.
Developer & terminal toolsAndroidMagisk
topjohnwu/Magisk
Magisk is a suite of open source software for customizing Android, supporting devices higher than Android 5.0.
Developer & terminal toolsAndroid
Termux
termux/termux-app
Terminal emulator with packages.
OfficialDeveloper & terminal toolsAndroidaFreeRDP
FreeRDP/FreeRDP
FreeRDP is a free remote desktop protocol client.
Developer & terminal toolsAndroid
Acode IDE
Acode-Foundation/Acode
Code editor for Android with Linux terminal, Git, plugins and AI tools.
Developer & terminal toolsAndroid
What is Spectre?
Spectre is a free, open-source developer tool for Android. Radio frequency scanner with recon and offensive capabilities. It has 182 GitHub stars and is released under the GPL-3.0-only license, and you can install it from F-Droid.
Is Spectre free and open source?
Yes. Spectre's source code is public on GitHub under the GPL-3.0-only license, which is OSI-approved or FSF-free. F-Droid, which builds it from source, flags no anti-features such as ads or tracking on its latest build.
How do I install Spectre?
You can install Spectre from F-Droid (package dev.thomasbuilds.spectre); the links are on this page. Its GitHub repository also publishes releases (latest: v0.1.3).
Is Spectre still maintained?
The repository's most recent commit was on Sep 29, 2026. Its F-Droid listing was last updated on Aug 1, 2026. appsgit only lists apps whose repository had a commit in the last six months.