About Sabz

Sabz is a plant care app for iPhone, made in London by one person. Its centrepiece is the Check-up: when a plant looks wrong, it reads the care you have already logged — watering, feeding, light, the move to a colder room — and works out the likely cause with you, saying how sure it is. A photo can tell you what a plant is. It cannot tell you why yours is struggling; the history can.

The name is the Persian word for green — سبز — and that is as far as the metaphor goes.

Who makes it

I'm Nasim Keshavarz. I trade as Sabz, a sole trader registered in England and Wales, and I'm registered with the Information Commissioner's Office as a data controller (reference ZC227246). The legal details, the service address and the privacy policy are on the privacy page. I write the code, the guides and the plant data, and I answer support myself.

Sabz has no accounts, no analytics and no advertising. Your plants and their history stay on your own devices, synced through your private iCloud; a photo leaves only to be read — to identify a species or as part of a Check-up — and is discarded straight after.

How the toxicity data is checked

Every one of the 265 species in the plant library carries a verdict for cats and a separate one for dogs, and each is read off that species' own entry in the ASPCA's animal poison control database — never inferred from a plant family, and never from a list page, because the list pages truncate. Where the ASPCA gives clinical signs, the page quotes them verbatim and the app derives a severity from them. Where no database gives a verdict for an animal, the page says unknown. It does not guess, and it does not treat "not listed" as "safe".

Scientific names are checked against Kew's World Checklist of Vascular Plants. Common names are the ones nurseries print, because that is what you will search for.

How the guides are checked

Each guide is written by hand and gives, for one problem, the tell that separates it from the problems it is mistaken for. Each carries one reference to the Royal Horticultural Society's page on the same subject. Treatment advice names only what is approved for home use in the UK: for pests that means soap-based products and cultural fixes, and it means the guides do not recommend neem, which is not an approved plant protection product here, however often it appears elsewhere.

None of this is veterinary or professional advice. If an animal has eaten a plant, the guide says what to do and it starts with the vet.

The app

Sabz on the App Store — free to download; Sabz Care is an optional subscription. Made in London, first released in August 2026.

A photo can tell you what a plant is. It cannot tell you why yours is struggling; the history can.