your grow diary,
private and offline.
log every plant, feeding, photo and metric from seed to harvest. no login, no cloud, no ads, no subscription. buy it once, it's yours.
hi. 🌱
ACTIVE CROP
tent 2025
plants
6
day
38
stage
flower
feeding
3 plants · 1.4 EC · pH 6.1
14:32
light change
12/12 · LED + HPS
yesterday
why another app?
most grow journals were not built by growers.
they ask for an account, or pile on ads, or treat the grower as a marketing target. we did the opposite: everything local, the way a grower actually needs it.
no sign-up wall
open the app, you are in. no account just to log the first watering.
no forced cloud
your data stays on your phone. no hidden copy, no server in the loop.
no ads
a paid app at the cheapest store tier. nobody selling your data, nobody pushing banners.
more than photos
pH, EC, TDS, temperature, RH, feedings, prunes, transplants. all in the feed, all on the charts.
features
everything a grow journal needs.
built by growers, for growers.
crops and plants
organize by room, tent or garden bed. each plant has genetics, stage, its own timeline.
instagram-style feed
every event — water, prune, transplant — lands as a card on the home feed with photo and context.
environment charts
pH, EC, TDS, temperature, humidity. compare variables and see how environment shapes the cycle.
private photos
capture with the camera or import from gallery. images stay in the app sandbox — no external gallery sees them.
local reminders
recurring tasks (water, prune, feed) become push notifications on the phone, with no server in the middle.
sprays and ferts library
add once, reuse across every crop. quantities per plant with decimals.
export reports
generate a backup of the full crop with events, photos and charts — archive or share.
multi-light and outdoor
combine LED + HPS in the same crop, or mark it outdoor and follow the natural cycle.
lunar calendar
moon phases and planting windows right on screen — for the biodynamic crowd.
strain library
every strain becomes a living record: average yield, aroma, effect and days to harvest, rolled up from all your grows.
compare your grows
rank your harvests by yield per plant, total, days or grams per day. see at a glance which grow did best.
drying and curing
follow the dry down curve and the cure with automatic burp reminders and mold or ammonia alerts.
real privacy
encrypted backups (AES 256) and an app lock with optional decoy mode. pay once; no ads, no tracking, no account.
your photos never touch the phone's gallery.
in-app camera + import, protected sandbox, zero uploads. grow photos and videos stay invisible to the system gallery — even if someone picks up the unlocked device.
- invisible to the system gallery
- iOS / Android internal encryption
- nothing leaves the device — 100% local
why GrowerHelper
what most grow journals just don't do.
where GrowerHelper stands apart from cloud apps and generic note-taking diaries.
truly 100% offline
open it, log, chart and export a backup with zero internet. most rival apps gate the very first screen behind a login — and your grow with it.
no account, no cloud, no email
first open spins up an anonymous local identifier. we never ask for a name, email or phone, and nothing syncs to a server you have to trust.
built by a grower, not a startup
every screen comes from running real grows — the metrics that matter, the events that actually happen, the reminders you actually need. not a generic diary with a plant theme.
zero trackers, zero analytics
no pixels, no heatmaps, no ad SDKs. we literally cannot tell which screen you opened — and we built it that way on purpose.
every cycle sharpens the next
the strain library and grow comparison roll up yield, aroma and days-to-harvest across all your runs — so you repeat what worked and drop what didn't.
5 languages, hand-written
pt-BR, English, Spanish, Dutch and German — every locale written by the team, not run through a machine translator.
how it works
from tap to first event.
less than a minute.
open the app
no account needed. a quick tour covers crops → plants → events.
create your first crop
name it, pick indoor or outdoor. photoperiod and medium come pre-filled with sensible defaults.
start logging
one tap on + and you log a water, feed or photo. it all shows up in the feed, charts and reports.
honest pricing
pay once. it's yours for good.
no trial, no subscription, no "$8.99 a month forever". one price, one tap, and every feature is unlocked.
app
GrowerHelper
one-time on App Store / Play Store
- all features of the grow diary unlocked
- photos, events, charts, reports
- no login, no cloud, no account
- no ads, no tracking
- encrypted local .zip backup
prices are set by Apple and Google and may vary by country. local currency shows up at checkout.
who it is for
any grow, any scale.
home grow
1–6 plants at home
indoor tent
80x80, 120x120, 240x120
greenhouse
controlled large-scale
outdoor
yard, balcony, plot
hydroponics
NFT, DWC, ebb-and-flow
breeders
multiple genetics + mothers
privacy first
your data, on your device.
we deliberately chose no analytics, no required login and no app-to-server chatter by default.
offline-first
the app runs 100% without internet. zero external requests in normal use.
photos only you can see
photos and videos live inside the app, protected by the phone's own encryption. the system gallery never sees them.
no analytics
no trackers, no pixels, no heatmaps. we have no idea what screen you visited.
your data, portable
export a full backup any time — the file is yours.
ready to start?
private diary, 100% offline. no login, no cloud, no account. download and create your first grow in 30 seconds.