One File · Powerful fitness tracker
Every tree.
Every wire. Every season.
A bonsai care log in one HTML file. Trees, actions, seasonal advice — for the practitioner with one tree or thirty.
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 bonsai people end up with logs.
A tree is a 30-year project. Records compound.
Seasonal banner is the real coach.
April: spring repotting · July: feed weekly · September: harden off · January: minimal disturbance. The calendar drives the dashboard.
Years-since-last-repot tracking is critical.
Most species need repotting every 2-3 years. The dashboard surfaces overdue ones in spring.
Style + species fields preserve the tree's story.
Chokkan / Bunjin / Kengai. Juniperus chinensis vs. Acer palmatum. The vocabulary makes you a better practitioner.
Action log captures the long game.
Wired for 6 months, unwired in March, pruned canopy June. Three years in, the log IS the tree.
across 5 styles
across a year of care
no recurring fee, ever
log at the bench
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 an action 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 style
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
Collection
Every tree, in one place.
Tree name, species, style, estimated age (years) per row. Sortable, searchable, groupable.
- Search across tree name, species, from
- Sorted by tree name (A→Z)
- Group by style with one tap
- 13 fields per entry — the right amount of detail
Care log
Every action, in one place.
Date, tree, action per row. Sortable, searchable, groupable.
- Search across notes
- Sorted by date (newest first)
- Group by action with one tap
- 4 fields per entry — the right amount of detail
Gallery
The whole jungle.
Every plant photo, in one grid. Tap any to see it full size.
- 13 fields per entry
How it's different
What you give up vs. plant apps. Plant ID via photo.
Compared with general plant-care apps.
- Pricing modelPay once · $8.99£8 – £15 / month, forever
- Account requiredNoYes
- Plant ID via cameraNoYes
- Seasonal stage adviceYesLimited
- Repot interval trackingYesNo
- Data stays on your deviceYesNo
- SubscriptionNoYes
The promise
Your trees are your trees.
Not a wellness platform's.
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.
Indoor + outdoor?+
Yes — indoor-tree flag per tree. Tropicals (Ficus retusa) live alongside hardy outdoor pines.
Does it identify species from a photo?+
No — that needs ML and cloud. Bring the species name; the tracker handles the rest.
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 for the long tree.
We'll personalise a copy and email you a private link. Bookmark it, install it as an app, log this morning's prune.
14-day refund · No subscription
