zongo
One path. Every dot. In order.
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Launch week: the full unlock is $3.99 instead of $5.99. 60 campaign levels, 19 board shapes, endless puzzles, and same-room races. No ads, no accounts, no tracking.
One line. Every numbered dot, in order. Never cross your own path.
That is the entire rule. Learning it takes ten seconds. The puzzles that
grow out of it will keep you busy for months.
zongo is a logic path puzzle: draw a single unbroken line that visits every
numbered dot in sequence and fills every cell on the board. There is exactly
one solution, and you can always reason your way to it. No guessing, no
timers counting down, no lives, no waiting.
A NEW PUZZLE EVERY DAY
A fresh daily puzzle, the same one for everyone, plus a streak worth
protecting. Solve it and keep going — Endless generates as many puzzles as
you want, at the size, shape and difficulty you choose.
NINETEEN BOARDS, NOT ONE
Most path puzzles are a square grid and stop there. zongo keeps the rule and
changes the world underneath it: honeycombs, triangles, octagons, circular
boards, spirals and mosaics. Then it gets strange — a Portal Wrap board where
the edges connect, a Möbius strip with a half twist, a Klein bottle, a
projective plane, a cube you solve across its faces or around its corners, a
Penrose tiling that never repeats, and a hyperbolic disk where the grid grows
as it reaches the rim. Same rule every time. Completely different reasoning.
A CAMPAIGN THAT TEACHES
Eighty-seven hand-tuned levels that introduce each board and each technique in
order, so nothing arrives before you have the tools for it.
LEARN THE TECHNIQUES
Thirteen built-in lessons cover the reasoning that solvers actually use —
sealed pockets, corners and dead ends, walls, corridors, forced moves, rooms,
counting colours, and reading the numbers for what they rule out — then take
you onto a honeycomb and a Portal Wrap board. Short, interactive, and playable
at any time.
A COACH THAT NEVER PUNISHES YOU
When a path is heading somewhere unsolvable, zongo tells you — before you
waste ten minutes finding out. Dead-end warnings, gentle nudges and lessons
are free, always, and cost you nothing. Getting unstuck is not a purchase.
RACE SOMEONE IN THE SAME ROOM
Hand a phone to a friend and race the same puzzle side by side, live. Or
share any puzzle as a link — they play the exact board you played, and their
time lands on its scoreboard next to yours. Race a ghost of a previous solve
and watch the line redraw itself stroke by stroke.
OPEN A ROOM, ANYWHERE
Open a live room, read out the code, and up to twelve friends race the same board from wherever they are — then watch every line replayed together on one board. Build your own levels, name them, and publish a campaign: one link that hands your friends a whole set to play in order. Anything anyone shares lands in the public campaign, for everyone.
TWENTY-NINE THEMES
Blueprint, newsprint, e-ink, sakura, synthwave, deep sea, code rain, stained
glass and more, with ambient motion you can turn off. Or let zongo roll a new
one for every puzzle.
BUILT THE WAY GAMES USED TO BE
No ads. No subscription. No accounts. No tracking. Anonymous usage
measurement is off until you switch it on, and every puzzle plays offline —
the only thing that ever leaves your device is a scoreboard time you chose
to post. Buy it once, or never, and it is still a complete game.
FREE, WITH NO CATCH
The daily puzzle, streaks, the weekly gauntlet, all thirteen lessons, the whole
Race tab, a live room on the house, Endless play, a set of themes and the first twenty campaign levels
are free forever, no ads attached.
Zongo Full unlocks the remaining sixty-seven campaign levels, every board shape in
Endless, the full theme gallery, saving in the level builder, unlimited live
rooms, up to five campaigns of your own, and Coach Insights — unlimited hints,
alternate-solution reveals, and full history. One payment. No subscription.
Universal: iPhone, iPad and Mac, one purchase for all three. Game Center
leaderboards and achievements. Full VoiceOver and Dynamic Type support.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Live rooms: open a room, read out the code, and up to twelve friends race
the same board from anywhere — every line replayed together at the end.
Try a demo room first.
Campaigns: publish a campaign of your shared levels, one link for the whole
set. Anything anyone shares lands in the public campaign.
Build a level: the builder is open to everyone — save and name your levels
with Zongo Full.
Also: six new lessons in Learn, Show solution when you're stuck, a clearer
win card, and the doors to Gauntlet, rooms, Pass & Play and the builder
right under the board.
The developer, BO NO BO S.A R.L.-S, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- BO NO BO S.A R.L.-S
- Size
- 16.7 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 4 more
- English, French, German, Portuguese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Zongo Full $3.99
- Copyright
- © BO NO BO S.A R.L.-S
