AlterEidos
We make EidoMotion, simple Android apps that convert, trim and extract audio and video. Everything runs on your phone: no account, no ads, and your media is never uploaded.
EidoMotion Extract
Pull the audio out of any video and save it as MP3, M4A, WAV or FLAC.
EidoMotion Cut
Trim audio and video to exactly the part you want.
Coming soon to Google Play.