PictureThis vs Planta 2026 — which actually wins?

If you have narrowed to PictureThis vs Planta, you have picked the two most polished apps in the category and the choice is genuinely close. This is a third-person comparison from the team behind Growli, an AI gardening assistant. Growli appears in the second half as the third option on the axis where both of these are weakest; the first half is about them.

Prices below were read from each app's own App Store listing on 29 July 2026 rather than converted from a US figure, which is why the UK numbers here differ from most comparison pages.

Quick verdict — one sentence each

PictureThis wins if you meet unfamiliar plants often and want a confident name in two seconds.

Planta wins if you own plants you keep nearly killing and want the watering decided for you.

Side-by-side

Both ratings are excellent and neither should decide it — at this volume, store ratings mostly measure onboarding polish.

PictureThis — what it is genuinely best at

The identification engine is the best in the consumer market and the gap is real. The catalogue runs to a claimed 400,000 species, the reference photography is high quality, and photo-to-confident-name takes about two seconds. On ornamentals, garden centre labels and obscure cultivars, nothing else in this comparison matches it.

Paid tiers also include a botanist-on-call feature, where a trained botanist answers follow-up questions — a meaningful differentiator that few competitors offer at all.

Where it falls down: the care side is a bolt-on. Once identified, you get a static per-species care card — "water every 7 days" — which does not adapt to your window, your pot, your central heating or the season. That is not scheduling; it is a reference page with a notification attached.

The complaint that dominates its reviews is billing. The 7-day trial converts automatically, and unexpected charges after a trial people believed they had cancelled are the single most common theme in PictureThis's App Store reviews on both storefronts. If you trial it, cancel through your phone's subscription settings — deleting the app cancels nothing.

Planta — what it is genuinely best at

Planta's onboarding asks the questions that actually determine whether a plant lives: which way the window faces, what the room is, what the pot is made of. It then builds a per-plant schedule and adjusts it through the year. Among everything in this category, this is the best watering engine, and it is not particularly close.

The Swedish design is calm and consistent, the light meter is genuinely useful for placement decisions, and the 25,000-species library carries cultivar-level detail — Thai Constellation and Albo Monstera are distinguished, which matters more than raw catalogue size for people who own the plants rather than meet them.

Where it falls down: identification is a secondary feature and lags PictureThis noticeably at the long tail. Dr Planta, the diagnosis feature, is mostly a static troubleshooting article rather than a back-and-forth — it cannot separate the causes that look identical in a photo. And the free tier is thin: identification, diagnosis and the light meter are all gated.

Pricing, honestly

Checked against each app's own App Store listing on 29 July 2026, US and GB storefronts.

The gap is about $4 a year. Anyone telling you one of these is the budget option is quoting a stale figure — and most UK comparison pages are worse than stale, because they convert the dollar price rather than reading the GB listing, which Apple sets as a separate decision.

Two things that do differ on money. PictureThis has a Family Plan at $49.99 / £49.99, which is good value across a household and has no Planta equivalent. And Planta lists several 12-month tiers in the UK — £17.49, £32.99, £34.99 and £43.99 — so what you are shown at the paywall may not be what someone else was shown.

Where both fall short — and it is the same place

Neither app is built to answer the question people actually arrive with. Not what is this, and not when do I water it, but "the leaves are going yellow and I do not know why."

That question cannot be answered by a photo alone, because overwatering, underwatering, light stress and nutrient burn look alike in a single image. Answering it requires asking back: how long has it been, what changed, where is it standing, when did you last feed it. PictureThis gives you a static species page. Planta gives you a troubleshooting article. Neither asks a follow-up question.

That gap is why Growli exists, and it is the only claim we make on this page: conversational diagnosis that narrows overlapping causes by asking, plus a daily briefing that ties your local weather to what needs doing today, and frost alerts ahead of cold nights for anything outdoors.

On price we are not undercutting anyone — Growli Plus is $44.99 / £34.99 a year, level with PictureThis in the UK and above both apps in the US. What is free is different: our free tier does not expire and covers the garden plan, weather-timed care tasks, frost warnings and growing guides, while photo identification and diagnosis are the paid part. The pricing page sets it out, and what plant apps actually cost in 2026 puts all nine side by side.

How to decide, in three questions

1. How often do you meet a plant you cannot name? Often — PictureThis. Rarely — Planta.
2. Do your plants die of neglect or of confusion? Neglect, meaning you forget — Planta's scheduling is the strongest fix available. Confusion, meaning you water attentively and things still go wrong — neither of these, and see the section above.
3. Is anyone else in the household using it? PictureThis's Family Plan at $49.99 changes the maths across three or more people.

If you genuinely cannot choose, run PlantNet free alongside Planta. PlantNet has no in-app purchases at all and covers identification well enough for most people, which turns a $40 decision into a $36 one.

Common mistakes when choosing between them

1. Comparing on catalogue size. 400,000 versus 25,000 sounds decisive and is nearly irrelevant if you own twelve houseplants. Cultivar-level accuracy on the plants you actually have beats raw count.
2. Trusting a quoted UK price. Most pages convert the US figure. Apple prices per territory separately — read the GB listing or a page that has.
3. Starting both trials at once. Both convert automatically. Two forgotten trials is £67.98.
4. Expecting either to diagnose. They identify and they schedule. Neither interrogates a symptom, and no amount of paying changes that.

Related articles

• What plant apps actually cost in 2026 — 9 verified — every price read from its own App Store listing
• PictureThis vs PlantNet — honest head-to-head — the free alternative to the paid identifier
• PictureThis alternatives — 7 plant ID apps compared — when the auto-renewal stops being worth it
• Best plant identifier apps — tested and ranked — the wider identification field
• Growli vs Planta — where we differ from the scheduling leader

Prices verified against primary sources on 29 July 2026. Reviewed by the Growli editorial team.