One File · Powerful fitness tracker
Every guitar.
Every string change. Every gig.
A guitar collection log in one HTML file. Guitars, sessions, string-change reminders — for the collector / player who has more guitars than years.
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 guitarists end up with logs.
More guitars, more strings, more forgetting.
String-banner kills the niggling 'when did I...'
Active guitars 8+ weeks since restring get flagged. New strings, every guitar, on time.
Most-played list is your real go-to.
After 6 months, the data tells you which guitar gets the call. Surprises are common.
Studio-value tier card is quiet pride.
Sums market value across the rack. Useful for insurance, useful for resale-decisions.
Setup notes per guitar preserve the magic.
Action, intonation, pickup heights — the things that make THIS guitar play this way. Captured per instrument.
Strat, LP, Tele, D-28, Yamaha
across 90 days
no recurring fee, ever
no public profile
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 session 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

Studio
Every guitar, in one place.
Brand, model, year, type per row. Sortable, searchable, groupable.
- Search across brand, model, serial number
- Sorted by brand (A→Z)
- Group by type with one tap
- 16 fields per entry — the right amount of detail

Sessions
Every session, in one place.
Date, guitar, session type, length per row. Sortable, searchable, groupable.
- Search across where, notes
- Sorted by date (newest first)
- 6 fields per entry — the right amount of detail

String log
Every string change, in one place.
Date, guitar, gauge, brand per row. Sortable, searchable, groupable.
- Search across setup / intonation notes
- Sorted by date (newest first)
- 5 fields per entry — the right amount of detail

How it's different
What you give up vs. Reverb / Sweetwater. Marketplace.
Compared with guitar marketplace apps.
- Pricing modelPay once · $9.99£8 – £15 / month, forever
- Account requiredNoYes
- Auto market valuesNoYes
- String-change remindersYesLimited
- Sessions log per guitarYesNo
- Data stays on your deviceYesNo
- Marketplace integrationNoYes
The promise
Your studio is yours.
Not Reverb's content.
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.
Bass / mandolin / uke?+
Yes — type field includes electric solid / semi / hollow / acoustic / classical / 12-string / bass / resonator / lap-steel / uke-mandolin-banjo.
Setup tracking?+
Notes textarea on each guitar holds the per-guitar setup. String log captures gauge changes.
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 book of strings.
We'll personalise a copy and email you a private link. Bookmark it, install it as an app, log tonight's strum.
14-day refund · No subscription

