moss vs Flora
A free focus timer that grows a tree, which dies if you leave. Group sessions with friends.
Checked 11 November 2026 against AppFinca Inc.'s own pages. We make moss, so we have linked every source below.
What Flora is
Flora is a focus timer with to-dos and habit tracking. A tree grows during a session and dies if you leave the app. You can run group sessions with friends, and if everyone stays off their phone each person earns an extra tree. The official site says it is free. The App Store lists small in-app purchases for themed tours at $0.99 to $1.99, and there is an optional real-tree planting service. It runs on iPhone (iOS 16.4 or later), Android and as a Chrome extension.
What moss is
moss is an iPhone app that comes with a small physical stone. You choose the apps that distract you, tap your phone on the stone, and those apps stay locked until you tap the stone again. People who live together can link their phones to share schedules and put their phones down at the same time, while each person keeps control of their own phone. Locking is free in the app, the stone is a one-time purchase, and the household features are a paid add-on.
Side by side
| Feature | moss | Flora |
|---|---|---|
| Price | US$49 stone, free app | Free. App Store lists in-app tours at $0.99 to $1.99 |
| Subscription | None to lock your own phone. Household features are a paid add-on | Not stated |
| Works on | iPhone only, iOS 17 or later | iPhone (iOS 16.4+), Android and a Chrome extension |
| How you lock | Tap the stone, or start from the app, a Shortcut, the lock screen or the Action Button. Schedules by day of week | Start a focus session |
| How you unlock | Tap the stone, in the app | The session ends, or you leave and the tree dies |
| If you need back in | 3 emergency unlocks a month, refilled automatically | Not needed. You can always leave |
| Locking together as a household | Yes, as a paid add-on. Shared schedules, sessions others join in one tap, a view of whose phone is down, a streak. Nobody controls anyone else | Group sessions with friends, with an extra tree if everyone stays off |
| Whose key opens your phone | Only your household's own stone, card and sprigs unlock your phones | No key |
Where Flora is better
- It is free.
- Group sessions with friends anywhere, not only the people you live with.
- It works on Android and in Chrome as well as iPhone.
Where moss is better
- A real lock. Unlocking always needs the stone.
- Schedules by day of week that run without starting a timer.
- Calls and unlocked apps keep working while the chosen ones are locked.
Who should pick which
Pick Flora if
You want encouragement for timed focus sessions, alone or with friends.
Pick moss if
Encouragement has not been enough and you want the apps locked.
Sources
Spotted something out of date? Tell us and we will fix it.
moss is a stone that locks the apps you choose.
Tap to lock, tap to unlock. One price, and locking needs no subscription.
