ThumbTrek
Today
1.84km
Android · sideload
Your thumb
goes somewhere.
ThumbTrek measures how far. Instagram, YouTube, X and Reddit, converted from pixels to metres — with a daily limit if you want one, streaks, records and boards you opt into.
Android 8.0+ · signed APK · updates itself
Streak
12days
Best day
3.10km
How it works
A trek, not a guilt trip
ThumbTrek measures distance, not doom. No blocking, no lectures — just the map of where your thumb already went.
Grant Accessibility once
The service listens for scroll events in the apps you choose. It never asks for permission to read screen content, so it cannot see posts, text or URLs — only how far a view moved.
Scroll like you already do
Pixels become metres using your screen's density: pixels ÷ dpi × 0.0254. Nothing to start, nothing to stop, no timer running in the corner.
Pick a limit, or don't
Set a daily distance and every day you finish at or under it counts toward a clean-day run. Rather just watch? Baseline mode keeps the numbers with no cap and no verdicts.
Check the board when you want
Daily and weekly totals, streaks, personal records, shareable cards, and friend or global boards that stay empty until you opt in.
Instagram
YouTube
X
Reddit
+ any app you add
The scale
Metres mean nothing. Landmarks do.
A number like 830 m doesn't land. So every total gets measured against something you can picture — the ladder the app actually walks up.
1.8 m
a queen-size bed
a glance at notifications
28 m
a basketball court
waiting for the kettle
105 m
a football pitch
one queue
330 m
the Eiffel Tower
a coffee break
830 m
the Burj Khalifa
a lunch hour
2.74 km
the Golden Gate Bridge
an evening in
8.85 km
Mount Everest
a long weekend
42.2 km
a marathon
a fortnight, honestly
The ladder runs from a banana to the Moon. You will not reach the Moon.
Design
Built for the long scroll
Local-first storage, signed sideloaded updates, and a social layer that stays quiet until you turn it on.
Self-updating APK
Checks GitHub Releases over Wi‑Fi, verifies the SHA‑256, then asks once to install. No Play Store required.
Opt-in social
Friend codes, weekly boards, anonymous handles. Nothing leaves the phone until you say so.
Honest numbers
No calibration slider on competitive scores. A slider would just be an honour-system cheat dial — everyone measures the same raw trek.
Install
A minute, once
Grab the latest signed APK from GitHub Releases. Allow installs from your browser once, and ThumbTrek handles every update after that.
Android 8.0+. Sideload only — not on the Play Store.
Privacy
What we see — and don't
Nothing leaves the phone until you turn leaderboards on. After that, two different things do — and they have two different audiences.
Never read
No screenshots, no feed text, no URLs. The service never requests content access — it reads the scroll numbers the event itself carries and nothing else.
Published to the board
A name you choose — your Google one or an anonymous handle — and three distances: this week, this month, all time. Anyone signed in can read those. That is what a leaderboard is.
Synced privately to you
Your day-by-day history and per-app split, readable by your account and nobody else's. That private copy is what lets the dashboard chart your history and what makes it survive a reinstall.
Either way the history lives on your phone first, and exports as CSV from Settings. Turning the leaderboard off deletes both halves from the server.