What’s new
• Add donate heart flow and fix F-Droid RB workflow.
Quick answer
Time-travelling audio recorder — save what just happened
Gecko is a free, open-source time-travelling audio recorder for Android. It keeps a rolling in-memory buffer of microphone audio so you can save something that just happened, then optionally keep recording forward.
Features: • Continuous listening into a ring buffer (foreground mic service) • Save the last 1 / 5 / 30 minutes, 2 / 6 hours, or everything held • Press-and-hold a duration chip to save history and keep recording • Settings for RAM budget and sample rate (8 / 16 / 44.1 kHz) • Exports WAV files to Music/Gecko via MediaStore • Restarts listening after reboot if it was left on • Multiple UI packs (Biolume, Sonar, Oxide, Volt)
Privacy: • No ads, no analytics, no crash reporters • Audio stays on-device; nothing is uploaded • Microphone is used only while listening is enabled
Battery notes: Defaults favour battery (8 kHz sample rate, power-saving mic mode, quiet notification). Raise sample rate in Settings when you need more fidelity.
Source: https://github.com/anantdark/Gecko License: GPL-3.0-only
Screenshots
How to install
- Download the APK from the button at the top of this page.
- Allow “Install unknown apps” for your browser or file manager only, not for every app.
- Open the downloaded file and confirm the installation.
- If installation fails with “App not installed,” remove an earlier build of the same app first. A signature conflict is the usual cause.
Data safety
- Every file is checked against its published SHA-256 before it is listed.
- Files are scanned for malware on every update.
- The permissions each app requests are listed on its own page.
- Read the full safety policy for how we test, flag, and delist files.
Frequently asked questions
What is Gecko?
Time-travelling audio recorder — save what just happened
Who develops Gecko?
Gecko is developed by Anant Patel.
Which Android version does Gecko require?
Gecko requires Android API 29 or later.
What is the current version of Gecko?
The synchronized F-Droid version is 1.0.3.
Which license does Gecko use?
The signed F-Droid metadata lists GPL-3.0-only.
Where is the source code for Gecko?
https://github.com/anantdark/Gecko
Comments
Recent approved comments · sorted by newest
View all comments