# Zotz! > Perceptual practice game with customizable card-matching challenges. (iPhone/iPad app by Matt Neuburg.) - Source: https://appshunter.io/ios/app/zotz/id346433833 (this page in markdown: same URL + `.md`) - Developer: [Matt Neuburg](https://appshunter.io/developer/346204863) - Category: Games, Card, Puzzle - Price: Free (on sale, was $0.99) - Rating: 5.00/5 from 4 App Store ratings · 9 written reviews indexed - Age rating: 4+ - Requires: iOS 26.0 · 4 MB - Languages: English - Released: 2009-12-24 - Data updated: 2026-06-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/zotz/id346433833/reviews.md ## What is Zotz!? Zotz! is an enjoyable time-waster, a form of perceptual practice, good for training the brain and the eyes; there is no timer and no score, no pressure, just a simple challenge waiting for you whenever you like. The game supposes a deck of cards, where each card has four attributes, and each attribute on any given card has one of three possible values: Number (one, two, or three), Color (red, blue, or green), Fill (solid, hazy, or empty), and Shape (diamond, oval, or rectangle). All you have to do is to spot, amongst the visible cards, any three cards which, for each attribute, are either all identical or all different. Colors, middle fill type, and number of cards in the layout can all be customized. Full instructions, with examples, are included. ## Key features - Perceptual practice - Brain and eye training - Customizable attributes - No timer or score - Simple card challenge ## Recent user reviews (9 of 9) All indexed reviews: https://appshunter.io/ios/app/zotz/id346433833/reviews.md ### 5/5 — My favorite in-flight entertainment *2016-11-23, version 1.5* This is just what I need when it's that part of the day (or that part of a flight) where my energy is dwindling. After a game or two, I'm invigorated and feel slightly smarter. (Disclaimer: I'm the editor of a couple of his books, which means I'm used to giving him honest feedback, which at the moment is just my wish for an iPad version.) ### 4/5 — Set? Not quite. *2012-10-22, version 1.2* I was looking for an app of Set, the best solitaire game ever. This is close. I like the customizable options, and the hint. I only gave it 4 stars because a way to rearrange the cards would be awesome. Not just a shuffle, but maybe organized by number of shapes. That's how I always played with Set. ### 1/5 — Buggy *2011-12-29, version 1.1* Do not buy unless the bug is fixed. Should have read the reviews before purchasing... ### 2/5 — Crashes! *2011-12-14, version 1.1* I love the game itself, but since the ios5 upgrade it crashes anytime a wrong selection is made. I'm thinking of deleting it, but I paid three bucks for it. So lately it's just been taking up space in my games folder. ### 1/5 — Help!!! *2011-11-25, version 1.1* Ever since the iPhone/iPad system upgrade it force closes!!! It's just awful now.... Please fix!!! ### 4/5 — technical difficulties *2011-10-23, version 1.1* I really like this game, but it's not working with the new iPhone 5 upgrade. Didn't see any actual support on the Zotz! support page. ### 5/5 — Simple yet challenging *2010-12-10* Although the rules of Zotz! are quite simple, and it is a challenging game/puzzle. The app is well-designed and easy to use. My only (minor) complaint is that the appearance is rather bland, especially the uninspiring icon. A glossier look to the "cards" and a simple, attractive icon would go a lomng way towards attracting customers to Zotz! ### 5/5 — Excellent *2010-07-30, version 0* This is an attractive (and customizable!) game; the perfect combo of requiring some thought and quick gameplay. Great when you just need to kill a few minutes, but makes you think enough to stay interesting. Once you get the concept, it's fun! (Nice to be able to change the colors.) Once in a while it seems like you're stuck, but there has always been a solution! ### 5/5 — Make me think, why don'tcha? *2010-03-01, version 0* I like to think I'm especially good at pattern matching, but my first few minutes with Zotz! convinced me that I'm a rank amateur. This requires a little THINKING, but that's a GOOD thing. Got a few minutes to kill? Don't stare at the TV, or you'll be killing neurons along with time. Stare at Zotz! and you'll be giving those neurons a little exercise. ## Frequently asked questions about Zotz! ### What is Zotz!? Zotz! is a brain and eye training game that involves finding sets of three cards where each attribute is either all the same or all different. It offers a pressure-free experience with no timer or score. ### How do I play Zotz!? You are presented with a deck of cards, each with four attributes (Number, Color, Fill, Shape), each having three possible values. Your goal is to identify any three cards where, for each attribute, they are either all identical or all different. ### Can I customize Zotz!? Yes, Zotz! allows you to customize the colors, the middle fill type, and the number of cards displayed in the layout. Full instructions with examples are also included within the game. ### Does Zotz! have ads? No, Zotz! does not contain advertisements. It is a completely ad-free experience. ### What devices does Zotz! support? Zotz! is available on iPhone and iPod devices. It is designed for iOS users. ### What is the age rating for Zotz!? Zotz! has an age rating of 4+, making it suitable for a wide range of players. ### How often is Zotz! updated? The latest version of Zotz! is 2.0, and it was last updated on October 11, 2025. This indicates a recent update. ### What do users like about Zotz!? Based on its 5.0-star rating from 4 reviews, users likely appreciate its enjoyable time-wasting nature, its effectiveness in training the brain and eyes, and its simple yet challenging gameplay. ## Version history (last 5 releases) ### 2.0.1 — 2026-04-21 App responds faster to user taps. ### 2.0 — 2025-10-11 Completely rewritten from scratch for iOS 26. Some interface improvements. App is now free. ### 1.9.1 — 2022-08-28 Interface improvements, including gentler animations and Dark Mode compatibility. ### 1.9 — 2021-10-17 Updated for iOS 15 and Swift 5.5. ### 1.8 — 2018-09-24 Updated to iOS 12 and Swift 4.2. Change state-saving architecture. ## Apps similar to Zotz! | App | Rating | Price | Category | | --- | --- | --- | --- | | [iFarkle (Ad Supported)](https://appshunter.io/ios/app/ifarkle-ad-supported/id399016459) | 4.7 (3,314) | Free | Games | | [Tichu one](https://appshunter.io/ios/app/tichu-one/id1600922596) | 3.8 (13) | Free | Games | | [Baker’s Game](https://appshunter.io/ios/app/bakers-game/id842387580) | 4.8 (33) | Free | Games | | [Matching Pairs!](https://appshunter.io/ios/app/matching-pairs/id1020612987) | — | Free | Games | | [Gin Rummy](https://appshunter.io/ios/app/gin-rummy/id1343120720) | 3.3 (24) | Free | Games | | [Cribbage ++](https://appshunter.io/ios/app/cribbage-plus-plus/id1067200665) | 4.2 (204) | Free | Games | ## More apps by Matt Neuburg - [99 Bottles!](https://appshunter.io/ios/app/99-bottles/id346204860) - [JACT Vocab](https://appshunter.io/ios/app/jact-vocab/id348277612) - [TidBITS News](https://appshunter.io/ios/app/tidbits-news/id348629441) - [J&SLatVocab](https://appshunter.io/ios/app/j-and-slatvocab/id352500795) - [Albumen](https://appshunter.io/ios/app/albumen/id355128672) All apps by Matt Neuburg: https://appshunter.io/developer/346204863 ## Related topics [zptz](https://appshunter.io/ios/topics/zptz) · [zots](https://appshunter.io/ios/topics/zots) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*