Modstack is now on the App Store

Modstack is live on the App Store for iPhone and iPad. Place Move and Turn tiles into a program, stack modifiers to change what they do, then run the machine and refine the solution until it reaches par.

Mirror and Repeat modifiers turn a small vocabulary into surprisingly large moves. Later circuits add ordered relays, switches, and gates, while the Daily Circuit offers a deterministic Easy, Medium, and Hard puzzle each day.

The Foundations chapter and Easy Daily Circuit are free. A one-time $3.99 Full Game Unlock opens the remaining 30 campaign circuits plus Medium and Hard Daily. There are no ads, subscriptions, accounts, currencies, or tracking.

Download Modstack from the App Store or visit the Modstack page for screenshots, gameplay details, support, accessibility information, privacy, and release notes.