The free Android alternative to Forest (that actually blocks apps)
I built CogniFocus because I kept opening Instagram during focus sessions and Forest wasn't stopping me. The tree dying made me feel slightly bad. Not bad enough to close the app. Just bad enough to feel bad while scrolling.
CogniFocus is a free alternative to Forest for Android. The difference is technical. Forest grows a tree to make you not want to leave. CogniFocus blocks the app before you get in.
That sounds like a small distinction. It isn't.
How Forest works
You start a session, a virtual tree grows. Leave the app to open TikTok and the tree dies. The mechanic is emotional friction: you like your tree, so you stay.
It works for people who mostly have self-control and just need a light reminder. The design is clean, the concept takes two seconds to understand and the real-tree partnership is a genuinely nice touch.
The problem is there is no technical barrier. If you want to open Instagram you can. Forest just makes you feel a bit rubbish about it afterwards.
How CogniFocus works
You pick which apps to block, start a session and the Distraction Shield watches for them. Try to open a blocked app and it gets interrupted before you land inside it. The Goblin companion reacts in real time: neutral during calm sessions, annoyed when you drift, cheerful when you finish clean.
No willpower required. The app just does not open.
What is free in each
| Feature | CogniFocus free | Forest free |
|---|---|---|
| Focus timer | Yes | Yes |
| App blocking during sessions | Yes, up to 3 apps | Limited on Android |
| Companion reactions | Goblin | Growing tree |
| Streak tracking | Yes | Yes |
| Android | Yes | Yes |
| Real tree planting | No | Yes (paid) |
| iOS | Waitlist | Yes |
Who should use each
Forest is a solid choice if you already have focus habits and want something calm running in the background. It has been around for years and is genuinely well built.
CogniFocus is for people who keep breaking their own rules. If you have opened Instagram during a study session thinking "just for a second" and looked up 30 minutes later, you already know emotional friction is not enough.
The short version
Forest motivates you. CogniFocus blocks the distraction before the decision happens.
If you are on Android and want a focus app blocker that is free with no paywall on core blocking, download CogniFocus on Google Play. If you want to see how it handles distractions before downloading, watch the demo.


Just Hunt