Bumi: Logic Puzzle
Rectangle logic puzzle
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Bumi is a logic puzzle built on a single rule.
Every grid hides a set of rectangles. Each number gives the area of the rectangle containing it — and exactly one way of dividing the grid satisfies every number at once. No guessing, no luck: if you look long enough, the answer is already there.
The rule takes seconds to learn. The twelve by twelve grids at the end of the campaign take rather longer.
CAMPAIGN
500 levels across 13 islands, growing from four by four up to twelve by twelve. Each island is a step up, and the map shows how far you have come.
DAILY CHALLENGE
One new puzzle a day, the same one for everybody. Your streak counts the days you solved it in a row — and if you miss one, it is forgiven once a month, because a whole month should not be thrown away over a single night.
TRAINING
Grids generated on the spot at whatever difficulty you pick, counting towards nothing. For when you want to play without your progress watching.
MEDALS
Gold, silver and bronze per level. Gold is not about speed: it is for solving without hints and without mistakes. What separates the medals is care, not haste.
FRIENDS
Give a code to whoever you like and you each see the other's points. There are two boards: all time, and today — which compares your time on the daily challenge, the one puzzle everybody plays identically. That one starts over each morning, so somebody who joined yesterday can still win it.
THEMES
Eleven themes, each in light and dark. Some are earned by playing well: completing islands, collecting gold medals, finishing achievements. Others simply ask that you were here in the season they belong to — Carnival, Spring, Summer, Halloween, Christmas.
EVERYTHING ELSE
Play with no internet connection. Sign in with Google or Apple and your progress follows you between devices. Portuguese, English and Spanish. No ads, no purchases, no timer ticking on screen.
One grid, a handful of numbers, and the quiet of fitting the pieces until everything lines up.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Luis Manuel Santos Maia, 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 Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Luis Manuel Santos Maia
- Size
- 44.6 MB
- Category
- Puzzle
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 2 more
- English, Portuguese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Luís Manuel Santos Maia
