We're UpFlyDev. We've been building software for twenty-something years now, for huge household names and for tiny two-person startups. Honestly? It's gotten pretty hard to surprise us.
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Solar Puzzles
Four gentle puzzle games and a museum of the whole solar system — every planet and all five dwarf planets, with real photographs and honest facts. No harsh "game over", no ads, no sign-in. Just space.
Rated 4+ · Apple Kids Category, ages 6–8 · “Data Not Collected” on the App Store
Every game is easy to pick up, forgiving by design, and quietly teaches the solar system.
Drag glowing planet pieces onto the star grid and fill rows to burn them. Endless, unhurried, and there's no timer breathing down anyone's neck.
Handcrafted missions where planets are trapped or frozen in the field. Clear the right lines to set them free — a puzzle with a rescue story attached.
Forty levels of sliding blocks into matching portals, from first steps to genuinely tricky. Plus a Puzzle of the Day with a streak, and a pass-and-play duel for two.
Match three planet marbles before the chain reaches the black hole. The hole spins faster as danger grows — and the chain slows down to give small hands a real last chance.
Star points earned in any game unlock worlds in the museum: eight planets, five dwarf planets and rare artifacts to find, each with a real photo and one honest fact.
No ads, no in-app purchases, no accounts, no analytics, no links out. The app has no networking code at all — on Android it doesn't even request internet permission.
Two native codebases, one game — because a puzzle board that stutters isn't fun for anyone.
8 planets 5 dwarf planets 40 portal levels 33 museum treasures 0 network calls
Solar Puzzles started as a birthday project for a six-year-old in the family who can name all five dwarf planets and will absolutely tell you when something is wrong. That's why Ceres sits between Mars and Jupiter where it belongs, why the facts are real, and why worlds nobody has photographed up close — Haumea, Makemake — say “no real photo exists yet” instead of showing invented art. Imagery comes from NASA and other public-domain sources, credited in the app. She approved the release. Eventually.
Free on the App Store and Google Play. Works entirely offline, collects nothing, and never asks a child to tap anything but a puzzle.