With an average user rating of 4.3★, the isotropy category is one of the App Store's strongest. Browse all 217+ apps and games we track, sorted so the most loved ones surface first.
A fast-paced puzzle game where players must quickly identify and tap the unique item among 100 identical ones within a strict time limit. Challenge yourself to find as many differences as possible in this addictive test of observation.
Instantly identify rocks, minerals, and gemstones by taking a photo. Access a comprehensive encyclopedia with detailed information on each stone, learn to distinguish real from fake gems, and explore their properties. The app also includes a metal detector and expert consultation.
Easily capture and annotate object dimensions with photos. Store, organize, and share measurements with detailed comments and multiple detail photos. Ideal for professionals and DIYers needing precise documentation.
Yes — 19 of the top isotropy apps & games we rank are free to download, including Isotropy and Rock Identifier: Stone ID.
Does Isotropy have ads or in-app purchases?
Isotropy has no ads and offers in-app purchases, according to its App Store listing as of June 2026.
How many isotropy apps & games are on the App Store?
We track 217+ isotropy apps & games on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
What is Isotropy?
Isotropy is a fast-paced puzzle game where you must quickly identify and tap the one piece that is different from the other 99 within a 10-second time limit. The goal is to repeat this challenge as many times as possible.
How do you play Isotropy?
To play Isotropy, you simply tap the unsuitable piece as soon as you spot it. The game is designed for quick reflexes and sharp observation skills to succeed within the tight time constraint.