One File · Powerful fitness tracker
Every match.
Every opponent. Every set.
A tennis match log in one HTML file. Matches, head-to-head, surface preferences — for the club-league player who actually wants their stats.
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 club players keep match logs.
Head-to-head and surface preferences are the data that makes you smarter.
Head-to-head banner ranks your most-played rivals.
After 3+ matches per opponent, the running W-L surfaces. Bragging rights are real.
Win-rate by surface is honest growth signal.
Hard 78%, clay 45% — informative. The next training plan writes itself.
Self-rating + 1st-serve % tell the personal story.
Match results are noisy; per-match rating + serve % is the underlying signal.
Padel + doubles supported.
Format field includes singles / doubles / mixed / padel — the modern racquet game in one tool.
across 8 months
hard / clay / grass / indoor / padel
no recurring fee, ever
log post-match in the carpark
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 match 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.
Head-to-head record (3+ matches)
Ranked list updated every time you log — the leaders surface naturally.
Searchable, sortable list
Every entry findable in seconds — search across notes, sort by anything.
Rating system
Star or scale ratings per entry — the patterns surface in the dashboard.
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
Matches
Every match, in one place.
Date, opponent, surface, result per row. Sortable, searchable, groupable.
- Search across opponent, venue / club, best shot / moment
- Sorted by date (newest first)
- Group by surface with one tap
- 14 fields per entry — the right amount of detail
How it's different
What you give up vs. tennis apps. AI stroke analysis.
Compared with tennis training apps.
- Pricing modelPay once · $8.99£8 – £15 / month, forever
- Account requiredNoYes
- AI stroke analysisNoYes
- Head-to-head per opponentYesLimited
- Win-rate by surfaceYesYes
- Data stays on your deviceYesNo
- SubscriptionNoYes
The promise
Your matches are yours.
Not a tennis-app feed.
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.
ATP / WTA-style stats?+
Self-rating + 1st-serve % captured per match. Stroke analytics need video; this is for the post-match record.
Padel?+
Yes — surface field includes padel court. Same data structure, same matchups.
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 match book that compounds.
We'll personalise a copy and email you a private link. Bookmark it, install it as an app, log Saturday's match.
14-day refund · No subscription
