The app I build
ChloroFile
A grow journal for iPhone and Android that keeps the whole record: stage timelines, environment readings, photos, and what came off the plant. It works offline, with no account.
Free to use. Pro is $3.99 a month or $24.99 a year and lifts the plant and tent limits. chlorofile.app
What it looks like
Screenshots from the shipping app on iPhone.
Today. The day at a glance: latest reading, active plants, what needs a log. 
A log entry. VPD and DLI work themselves out as you type, coloured against the stage's target. 
Your tents. Each tent with the gear in it, and the plants listed under the tent they live in. 
A variety. Look a strain up before you plant it, with lab results kept apart from breeder claims. 
The catalogue. Search every variety on the phone, no signal needed.
Why I built it
I built ChloroFile because the app I was using just didn't do everything I wanted any more. I wanted one that matched how I actually run a tent, so I decided to build it.
It's just me. There's no company in the background, and the support email goes to the same person who writes the code. If something is broken or missing, tell me at support@chlorofile.app and it usually shows up in the next update.
What it does
One log for the whole tent
Pick what you did (water, feed, training, pests, trim, transplant, flush), add what you measured, and save it to every plant it covers. One temperature walking into the tent, not four.
VPD and DLI as you type
VPD is worked out from leaf temperature, DLI from PPFD and light hours, and both are coloured against the target for the plant's stage.
Tents and the gear in them
Describe each tent, room or plot and what runs in it. Light wattage fills itself in and turns into grams per watt at harvest.
Charts with the right band
Readings across the plant's life, drawn against the target band for the stage it was in at the time.
Photos, reminders, finished runs
A dated photo timeline per plant, watering and feeding reminders that arrive whether the app is open or not, and finished plants side by side.
15,650 varieties on the phone
From 341 breeders, readable with no signal and no account. Pick one when you add a plant and it fills in what is known.
New to VPD? The VPD tips page here covers the targets the app colours readings against.
Free in your browser, no download
The same variety data runs a few tools on chlorofile.app that anyone can use.
- Will it finish in Northern Minnesota?What finishes outdoors before the first frost up here, with sow and harvest dates. Other regions too.Open
- Grow plannerSow, veg, flower, dry and cure drawn across your frost window.Open
- Browse 341 breedersEvery variety in the catalogue, listed under the breeder that makes it.Open
Your grow stays yours
- No account needed. Every feature works signed out and offline.
- Photos stay on your phone, even with sync turned on.
- No ads, and nothing that follows you into other apps.
The full privacy policy spells out the little the iPhone app does report.
Get ChloroFile
Free covers one tent properly: four active plants, one tent, and unlimited logs, photos and reminders.