Greg
An app that works out how much and when to water each plant.
What Greg does
Greg is a plant care app that sets a watering plan for each plant based on its species, pot size and how far it sits from a window. Scanning a plant to identify it is free. A community of plant people answers questions, and SUPER Greg is the paid upgrade.
Greg's big idea is that watering every week is a bad rule. When you add a plant, it looks at the species, the pot size and how close the plant is to a window, then builds a watering plan for that plant in that spot and reminds you when it's due.
Scanning a plant to identify it is free, according to the store listing. Treat the ID as a starting point, and never rely on it to decide whether a plant is safe to eat or touch. There's also a community side: a feed, groups, and a Q&A where experienced growers answer questions about yellow leaves or mystery pests.
The paid tier is called SUPER Greg. The App Store listing mentions $29.99 a year with a 7-day trial, though the store shows several other prices too. The iPhone app got an update in mid 2026, while the Android app seems to get updates less often. Also worth knowing if a teen wants it: the App Store age rating is 17+.
Alternatives to Greg
Who it's for
Skip it if: Anyone looking for a wild plant ID app. Younger teens (17+ App Store rating).
Pricing
Free planScanning plants is free. SUPER Greg is listed at $29.99 a year with a 7-day trial. The App Store also shows other SUPER Greg prices from $1.99 to $39.99 without saying what each covers.
Prices can vary by country. Checked 19 Oct 2026.
What people like
- Personal watering plans, not one rule for every plant
- Plant ID scan is free
- Friendly community for questions
Watch out for
- Android app updated less often
- Paid tier has many price points
- 17+ age rating on the App Store
Want watering reminders built around your space? Build your own.
Describe your app idea and Bilt builds it. Free to start, on your phone in minutes.
Try this idea: “an app that asks about my pot size and window, then tells me when to water each plant”
Questions people ask
Is Greg free?
Scanning a plant to identify it is free. SUPER Greg is the paid tier, listed at $29.99 a year with a 7-day trial.
How does Greg know when to water?
It uses each plant's species, pot size and distance from a window to build a watering plan, then reminds you when water is due.
Is Greg on Android?
Yes, it's on Google Play, though the Android app seems to get updates less often than the iPhone one.
What is SUPER Greg?
It's Greg's paid subscription. The App Store listing mentions $29.99 a year with a 7-day trial.