Alien Fitness

Android
Android

A minimal, fully offline workout tracker. No account, no server, no tracking
— the APK has no internet permission at all, so your data cannot leave your device.

Features:

  • Create your own training plans: any exercise, sets, reps and rest — edit any time
  • Ad-hoc free workouts: start empty, add exercises on the fly, save when done
  • Built-in plans: strength (Push / Pull / Legs) and HIT (Tabata, Power)
  • Live session logging with automatic rest timer, corrections supported
  • "Last time" shown and pre-filled for every set — progressive overload at a glance
  • HIT intervals: timed sets run with a work timer, rest and auto-chained next set
  • Interrupted workouts survive an app kill — resume, save or discard
  • Session details with every set, a free-text note and delete
  • Progress charts per exercise (max weight / reps or seconds over time)
  • Exercise library with images, muscle groups and equipment
  • JSON backup: export and import (merge with duplicate detection, or replace)
  • German and English interface, switchable in-app
  • Dark neon UI, screen stays awake during a workout, timer ends with beep and vibration

Works completely offline. Built-in plans use bodyweight, pull-up bar and dumbbells —
no gym required.

Signing certificate SHA-256 (verify with AppVerifier), identical for every version:
85:9E:88:B7:43:5F:84:1D:8B:C1:CF:F1:FE:A9:12:56:A6:33:DE:A5:59:D9:5A:91:02:4B:22:53:A2:AD:13:26
apksigner (no separators): 859e88b7435f841d8bc1cff1fea91256a633dea559d95a91024b2253a2ad1326