Greyfox Studio is an independent app studio building small, sharply focused mobile apps — utilities that respect your privacy and games that respect your time.
Our apps
Available now on the App Store and Google Play. More on the way.
Utilities
Every fill-up, every cost, every insight.
A private, local-first fuel logbook for all your vehicles — cars, motorcycles, boats, and more. Log fill-ups in seconds and Fuel Log turns them into efficiency trends, cost breakdowns, and shareable reports. Your data never leaves your device.
Games
Stack. Survive. Fight back.
The stacking game you know — until it isn't. Drop blocks with perfect timing, survive the tower sway past floor 25, and at floor 50 the game transforms: your block becomes a ship, and every floor after that is earned in combat.
The studio
We collect as little as possible — often nothing at all. When an app does need data to work, we say exactly what and why, in plain language.
Each app does one thing properly. No bloated feature lists, no dark patterns, no subscriptions where a one-time purchase will do.
We maintain our apps actively — regular updates, fast support, and attention to the details most apps skip.
