A company in Varna that, among other things, publishes Android apps. This one is Leaftend: a plant care log that keeps to itself, on the phone, with no account behind it.

The app

Leaftend

Your plants, kept track of.

Plants don't ask for much, but they ask on their own schedule, and it's easy to lose track of which one needs water, which is overdue a feed, and when you last repotted the bonsai. Leaftend is a calm, private log that keeps all of it straight.

Add each plant with a name, a species or nickname, the room it lives in and a hand-drawn avatar you pick — a silhouette, a pot style, a colour. Then set how often it needs each kind of care.

  • Water
  • Feed
  • Prune
  • Rotate
  • Repot

The home screen does the thinking

It reads when you last did each task and works out what's overdue, what's due today and what's coming in the next few days, with a droplet ring filling toward each plant's next watering. One tap marks a job done, logs the event and quietly resets the cycle. No cloud accounts, no push spam: the reminders live inside the app and are ready the moment you open it.

Every plant keeps its own story

Open one to see its care history as a timeline, add notes about how it's doing, adjust its cycles as the seasons turn, and star the ones you fuss over most.

A month calendar shows everything logged and everything due, so the whole little jungle is visible at a glance. A short care-basics page covers light, water, soil and bonsai fundamentals in plain language.

Switch between Bulgarian and English, set your week and date preferences, choose an accent that suits your windowsill, and keep the log offline with no account and no ads.

Get Leaftend on Google Play

Package com.sproutlab.leaftend

A log, not a botanist. Leaftend records what you tell it and never identifies a plant or diagnoses what's wrong with one. Plenty of popular houseplants are toxic if chewed by a child, a cat or a dog, and fertiliser is a household chemical: keep both out of reach, and never eat anything on the strength of an app. If someone swallows part of a plant or a feed, call 112 in Bulgaria and across the EU.

Working out

Why the small pot is always the thirsty one

A pot holds water in proportion to its volume and loses it through its surface, and those two grow at different speeds. Double the pot and you get eight times the soil but only four times the surface, so the interval between waterings doubles. The losing side is driven by the vapour pressure deficit: how much more water the air could hold than it does, computed here from the Magnus formula.

4.5days from soaked to dry
339 mlof water the soil can give up
1.32 kPaof vapour pressure deficit

At 22 °C and half humidity an 8 cm pot runs dry in about three days, a 12 cm in four and a half, a 16 cm in six, and a 24 cm in nine: exactly three times the diameter, exactly three times the interval. Move that same 12 cm pot from a cool damp room at 18 °C and 60% humidity to a hot dry one at 30 °C and 30%, and it goes from seven days to two.

What's not here: no plants, no schedules, no reminders and no log. This is bare soil physics with one calibrated constant, and it knows nothing about your species, your soil, your light or the plant's own thirst, which is often the biggest term of all. Leaftend doesn't calculate any of this either: you set the cycle, it remembers.

On paper

The publisher

Company
DOK SERVICE EOOD
Manager
Zhivko Tonchev
Address
9 Georgi Stamatov str., Asparuhovo Distr., Entr. A, Fl. 3, Apt. 9, Varna 9000, Bulgaria
Email
water@dokservice.space

Можете да ни пишете и на български.