Cacatoid

Cacatoid turns your phone into a search machine for the famous Bitcoin puzzles — Bitcoin addresses whose private keys lie within known ranges, holding real balances that belong to whoever finds them.

HOW IT WORKS
Start the search and the app uses your phone's CPU to test private keys within the puzzle's range, looking for the one that matches the address. The search keeps running in the background, with a notification showing progress.

100% OFFLINE AND PRIVATE
• The app does not request the internet permission: it is technically unable to send or receive data over the network
• No data collection: no accounts, no ads, no trackers
• If you find a key, it stays on your device only

FEATURES
• Continuous background search, even with the app off screen
• Real-time progress notification
• Start and stop the search whenever you want

BE REALISTIC
The ranges of the unsolved puzzles are enormous, and the chance of finding a key is astronomically small. Think of Cacatoid as a computational lottery and an educational experiment in cryptography and brute force: every key tested is a ticket.

The search is CPU-intensive. Prefer running it while charging and keep an eye on the temperature.

ABOUT
Cacatoid is part of the Bitcoin Puzzles ecosystem (bitcoinpuzzles.io), a community dedicated to cryptographic challenges.