One File · Powerful fitness tracker
Every ride.
Every chain. Yours.
A cycling log in one HTML file. Rides, bikes, maintenance — and a chain-wear countdown that deducts every km from your chain's life so you replace it before the cassette eats it.
One payment · Yours forever · 14-day refund
- Works fully offline
- Installs as an app (PWA)
- No account, ever
- Yours, forever
Loads once, never needs the internet again. On a plane, in a basement, in a foreign hotel.
Every entry, every chart — stored locally. We never see it. We can't.
No subscription. No upgrades. No re-up next year. One file, yours.
Why log
Why riders keep maintenance logs.
Chains, cassettes, and tyres don't last forever; remembering when you replaced them does.
Chain wear is the cheapest insurance.
A new chain costs £40. A new cassette + chain costs £150. The countdown is the difference.
Per-bike mileage reveals reality.
The road bike does 2,000km a year; the gravel bike does 800. The maintenance schedules differ. The log keeps them honest.
Type-mix shows real cadence.
How much commute vs. endurance vs. social? The donut tells you whether you're training or just collecting kit.
Maintenance receipts compound.
Five years of maintenance per bike: chain dates, cassettes, services, parts. Resale or insurance claim, the record is gold.
road, gravel, commuter — chain-tracked
real type distribution
no recurring fee, ever
log a ride at the cafe stop, no wifi
Inside the file
Eight things you'll use every day. Plus a dozen more.
One file. One dashboard. Every feature you'd expect from a "real" app — without the cloud, the cookies, or the £8/month.
Quick add
Log a ride from the home screen — three taps and back to your day.
Live insight banner
The single number that matters today, computed in real time from your entries.
Streak calendar
Daily streak across the last weeks. Showing up becomes the default.
Tier progression
Lifetime totals roll into satisfying tier badges as you log.
By type
Visual split across categories so the pattern becomes obvious without squinting.
Searchable, sortable list
Every entry findable in seconds — search across notes, sort by anything.
Photo per entry
Optional photo field stored locally as base64 — never uploaded.
PNG share cards
One-tap share card of your stats, ready for Instagram or a group chat.
Offline, always
Loads once, runs forever without a network connection.
Installs as a PWA
Add to home screen — opens like any native app.
CSV in / CSV out
Bring your old data in. Take everything with you. No lock-in.
No account, ever
No email, no signup, no analytics, no third-party tracking.
Yours forever
If we vanish tomorrow, your tracker keeps working — local file, no server.
Light + dark
Auto-follows the system. Or pick one and stick with it.
Today
Today, at a glance.
The home screen pulls together what just happened and what's coming up — clean enough to actually look at every morning.
- Live insight banner — your unique angle, computed from your entries
- Four-tile stat grid surfacing the numbers that matter today
- Streak calendar showing the last weeks at a glance
- Quick-add button — log without leaving the home screen
- Recent entries on the dashboard so the last log is one tap away
Rides
Every ride, in one place.
Date, distance (km), time, type per row. Sortable, searchable, groupable.
- Search across route / where, notes
- Sorted by date (newest first)
- 10 fields per entry — the right amount of detail
Bikes
Every bike, in one place.
Name, type, chain installed, chain life (km) per row. Sortable, searchable, groupable.
- Search across name, notes
- Sorted by name (A→Z)
- 10 fields per entry — the right amount of detail
Maintenance
Every maintenance, in one place.
Date, bike, task, cost per row. Sortable, searchable, groupable.
- Search across notes
- Sorted by date (newest first)
- 5 fields per entry — the right amount of detail
How it's different
What you give up vs. Strava. Segments and KOMs.
Compared with social fitness platforms.
- Pricing modelPay once · $8.99£8 – £15 / month, forever
- Account requiredNoYes
- GPS + power dataNoYes
- Chain-wear countdownYesNo
- Per-bike maintenance logYesOften paywalled
- Data stays on your deviceYesNo
- Public segments / leaderboardsNoYes
The promise
Your kit and your km are yours.
Not a leaderboard's data.
Offline, always
Open it once, never need the internet again. The file holds the whole app.
Local-first storage
Every entry stored in your browser, on your device. No server sync. No leaks. Nothing to breach.
One payment, forever
No subscription, no upgrade tier, no nag. If we shut down OneFileClub tomorrow, your file keeps working.
Data does not sync automatically between phone and desktop
This is a local-first app — everything stays on the device you logged it on. To use it on both phone and desktop, use the built-in JSON or CSV export on one device and import on the other when you want to keep them in step.
Every view, light and dark.
A look at every screen across both themes — your tracker, populated.
Questions
Real answers, no fine print.
Does it import from my bike computer?+
Not directly — type the ride. Most riders find that the act of writing the type and effort makes the log reflective; the head unit already has the GPS.
Can I track multiple chains per bike?+
v1 stores one chain-installed date per bike. If you rotate chains, the maintenance log records each chain swap separately.
Where is my data stored?+
Locally, in your browser, on your device. Nothing is sent to OneFileClub or anyone else — there is no account, no cloud sync, no analytics.
Does it work offline?+
Yes. Once your personalised copy loads the first time, the entire tracker runs from a single HTML file. Airplane mode is fine.
What does 'personalised copy' mean?+
When you buy, OneFileClub stamps a private copy with your licence and deploys it to a unique URL just for you. You bookmark it, install it as an app, or save the file — and the file is yours, even if OneFileClub disappears tomorrow.
What is your refund policy?+
14 days, no questions asked. Email us, we'll process it and disable your private URL.
One payment.
A logbook for the long ride.
We'll personalise a copy and email you a private link. Bookmark it, install it, log Saturday's ride.
14-day refund · No subscription
