Oarly
Get everyone across the river.
A raft, two banks, and passengers who cannot all be left alone together. Work out the order and everyone gets over. 45 river crossing puzzles, free, and they work with the plane on.
Get it on Google PlayFree · Plays offline · No account · Nothing for sale
Fox, Hen, Grain
Level 32 of 45, playable right here
0
best 7
The far bank
This bank
Tap a passenger to put them on the raft. Only the heron can work the pole.
Undo is free, and always will be
Take back any crossing. It never spends a coin, never asks you to watch anything, and never counts against your star rating. Restart is free too.
When a crossing breaks, the game says what went wrong in a plain sentence and offers the undo right there. A wrong move is a thing to take back.
No level, chapter or hint is ever locked behind a payment.
The first hint on every level is free
Not just the answer — the reasoning. The hint names which passenger to take and which two cannot be left on the bank behind you.
Want the whole solution laid out step by step? That is a video you choose to watch, or coins you have already earned. And if the video fails to load, you get it anyway.
45 logic puzzles, checked by a solver
Five chapters of nine, from a two-passenger warm-up to boards with ten. Every level is machine-verified before it ships: it is solvable, the stated best-possible crossing count is correct, and no two levels are the same puzzle twice.
Difficulty is ordered by that solved crossing count, so the step up is never a cliff. The classics are all here, retold with paper animals — the fox, the hen and the sack of grain is the wolf, goat and cabbage riddle; there are the jealous pairs and the lantern on the narrow bridge too. It is a brain teaser you can actually finish.
No timers. No lives. Nothing for sale.
There is no clock, no energy meter and nothing to run out of. Stars are earned on crossing count alone, and a slow solve is still a solve.
No banners anywhere, and never an ad when a crossing breaks — losing is punishment enough. A full-screen ad can show up after a level is finished, paced by a hard cooldown, and that is the only one you do not choose.
What it costs
Free, supported by ads. Nothing is sold.
There is no paid tier, no coin pack, no "remove ads" purchase and no subscription. The app ships without a billing library at all, so there is nothing in it that can take your money.
- All 45 levels, free
- Unlimited undo, free
- A free hint on every board
- No in-app purchases of any kind
- No banner ads, and none on a failed crossing
- No account, no analytics, no data collected
Questions people ask
Does it work offline?
Yes, completely. Every puzzle is on your phone. There is no account, no sign-in and no server — the only thing that needs a connection is an ad, and you can ignore those.
Is undo really free?
Unlimited, on every level, forever. It never costs a coin, never shows a video, and never reduces your star rating. Restart is free too.
What happens if I get stuck?
The first hint on any board is free and explains the reasoning. If you want the full step-by-step solution you can watch a video for it, or spend coins you have already earned — and if the video does not load, you get the solution anyway.
Is this the wolf, goat and cabbage puzzle?
That one is in here, retold with a fox, a hen and a sack of grain — it is the puzzle at the top of this page. So are the jealous pairs, the lantern and the narrow bridge, and forty-odd more.
Are there timers or lives?
None. No clock, no energy meter, nothing to run out of and nothing to wait for. A slow solve is still a solve.
How many ads are there?
No banners at all, and never an ad when a crossing breaks. A full-screen ad can appear after a level is finished, paced by a cooldown, and that is the only one you do not choose. Rewarded video is always opt-in.
What data does it collect?
None of its own. Progress, coins and settings stay on your phone. There is no analytics in the app or on this website. Ads are served by Google AdMob — what that involves is set out on the privacy page.
Is it suitable for children?
The puzzles are, and there are no human figures or caricatures anywhere in the game. The app is not directed at children under 13, and ad content is capped at a general-audience rating.
The fox, the hen and the grain are waiting on the near bank.
Forty-five crossings. Free, offline, and nothing to buy — brain games should not cost you anything but the thinking.