Field clues
Cap, gills or pores, stem, spore print, habitat, season, and the one feature that gives each mushroom away.
ShroomLock swaps mindless scrolling for a walk in the woods. A locked app shows a mushroom photo and four names, and the wrong ones are its real look-alikes. Get it right and you’re in; get it wrong and you learn how to tell them apart.
Free · no ads · works offline · Android 8 and later · Privacy · Terms
Never eat a wild mushroom because an app or a photo says it’s edible. Photos can’t show smell, spore print or what grows underground, and some deadly mushrooms look like edible ones. ShroomLock says this in setup, on every lesson card and on every mushroom page. Have every find checked in person by an expert.
An app blocker for curious minds. Every urge to scroll becomes five seconds of field mycology.
Pick any Android app: social media, video, games. Choose how many new mushrooms to learn each day.
Short lessons with real photos, the clues that identify each one, its edibility and the mushrooms it’s mistaken for, then a quick exam.
Open a locked app and ShroomLock asks about one of your mushrooms. Right: the app opens for 10 minutes. Wrong: a short pause to learn the difference.
In mycology, the hard part is telling twins apart. ShroomLock deals real look-alikes as the wrong answers, and explains the difference when you fall for one.
Blunt, forked ridges and grows from soil; the jack-o’-lantern has true gills and grows in clusters on wood.
Pink gills turning brown; the destroying angel’s gills stay white and its base sits in a cup.
Cut it top to bottom: a morel is one hollow chamber; a false morel is cottony and folded like a brain.
A white spore print and cottony ring; the deadly funeral bell drops rusty-brown spores.
Cap, gills or pores, stem, spore print, habitat, season, and the one feature that gives each mushroom away.
Every mushroom shows its edibility, from choice edible to deadly. Deadly species are flagged everywhere.
Each mushroom returns after 1, 3, 7, 14 and 30 days until it’s mastered. Miss one and it starts again tomorrow.
Fill your collection, build a daily streak, earn milestones and grow your Mycology IQ from 60 to 160.
A few emergency unlocks a day and an “I don’t need this right now” button. Helpful, never a trap.
No account, no ads, no analytics. Everything stays on your phone and works deep in the woods without signal.
Real photos from iNaturalist observers, credited in every image.







Three real photos of each, identified by the iNaturalist community, grouped by the first thing you check when you pick one up.
Death cap, destroying angel, fly agaric, panther cap, field mushroom, parasol, shaggy ink cap, honey fungus, oyster mushroom, St George’s mushroom and more.
Porcini, bay bolete, Satan’s bolete, slippery jack, chicken of the woods, hen of the woods, turkey tail, reishi, artist’s bracket and more.
Chanterelle, black trumpet, hedgehog, lion’s mane, morel, false morel, giant puffball, earthstar, stinkhorn, jelly ear, scarlet elf cup and more.
No subscription. Pay once if you want more, or never.
| Free | ShroomLock Plus (one-time) | |
|---|---|---|
| Locked apps | Up to 2 | Unlimited |
| Mushrooms | 35 gilled mushrooms | All 71, including boletes, brackets, chanterelles and morels |
| Lessons, reviews, streaks | ✓ | ✓ |
| Ads or tracking | None | None |
ShroomLock is an app locker for Android. When you open an app you locked, it shows a mushroom photo with four names, usually including its real look-alikes. Name it correctly and the app opens for 10 minutes.
No. ShroomLock teaches recognition, not foraging. Photos can’t show smell, spore print or what grows underground, and some deadly mushrooms look like edible ones. Never eat a wild mushroom because of an app; have every find checked in person by an expert.
Yes. The free version locks up to 2 apps and teaches 35 gilled mushrooms. ShroomLock Plus is an optional one-time purchase that adds unlimited apps and 36 more fungi: boletes, brackets, chanterelles, morels, puffballs and more. No ads, no subscription.
No. Everything stays on your phone: no account, no analytics and no ads. It works offline. Read the privacy policy.
They share the same app lock. ShroomLock teaches mushrooms instead of plants, and puts extra weight on dangerous look-alikes: deadly species are marked everywhere, and picking a look-alike explains how to tell the two apart.
ShroomLock is almost ready for Google Play.