# OpEvol > Animated Op Art visuals for interactive viewing and display. (iPhone/iPad app by Muddlegeist.) - Source: https://appshunter.io/ios/app/opevol/id788355019 (this page in markdown: same URL + `.md`) - Developer: [Muddlegeist](https://appshunter.io/developer/701677888) - Category: Entertainment - Price: Free with in-app purchases (on sale, was $0.99) - Age rating: 4+ - Requires: iOS 26.0 · 3 MB - Languages: American English - Released: 2014-01-03 - Data updated: 2026-08-19 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/opevol/id788355019/reviews.md ## What is OpEvol? Inspired by Op Art of the 1960s, OpEvol takes the geometric play of colors and contrasts and animates them into a moving field of ever-changing, optical, kinetic abstraction. It's for staring at. It's for sending to Air Display. Or an external monitor. Or a projector. It's something mesmerizing to design and watch evolve, or just leave on in the background as art. OpEvol Pro is an auto-renewing annual subscription (price shown in the app). Payment is charged to your Apple ID at purchase, and it renews automatically unless canceled at least 24 hours before the end of the period. Manage or cancel anytime in your Apple ID settings. Privacy Policy: https://muddlegeist.com/opevol/privacy Terms of Use (EULA): https://muddlegeist.com/opevol/terms ## Key features - Animated geometric patterns - Op Art inspired visuals - Psychedelic color displays - Interactive visual play - Air Display compatibility ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | OpEvol Annual Subscription | $6.99 | per year | ## Recent user reviews (10 of 11) All indexed reviews: https://appshunter.io/ios/app/opevol/id788355019/reviews.md ### 2/5 — Guy must not care anymore *2022-06-18* iOS 15.4, stuck on one design, no controls. Boo. ### 1/5 — Doesn’t work *2022-04-29* No controls, just opens and starts moving with only one design. iPad Pro. I was excited for this one but neglected to read the reviews. Bummer for me. ### 5/5 — Customizable for optimum relaxation and enjoyment *2020-09-12* My favorite thing about this app is the ability to control the colors, shapes, and especially the speed of changing shapes. I find that I most often turn down the speed from the default speed for maximum relaxation. ### 1/5 — Does not open *2020-05-03* The latest bug fix says the iPad Pro should be supported, but that doesn’t seem to be true. Crashes immediately every time. **Developer response:** Yeah, I'd neglected OpEvol for a while. I hadn't touched it in a coupe of years and didn't know it was bonked with newer versions of iOS until someone emailed me to let me know. Version 1.1.3 should be better. Sorry for flaking on it for a while. ### 1/5 — Won’t open *2020-02-24* It just flashes and won’t open will have to ask Apple for refund if I can remember to ### 1/5 — App won’t open *2020-01-20* Like many others I was looking forward to this app but it won’t open. I see the logo but then it seems to crash. Don’t buy until there is a confirmed fix. **Developer response:** Yeah, I'd neglected OpEvol for a while. I hadn't touched it in a coupe of years and didn't know it was bonked with newer versions of iOS until someone emailed me to let me know. Version 1.1.3 should be better. Sorry for flaking on it for a while. ### 1/5 — Doesn’t Work *2019-04-20* Downloaded app, won’t open? **Developer response:** Yeah, I'd neglected OpEvol for a while. I hadn't touched it in a coupe of years and didn't know it was bonked with newer versions of iOS until someone emailed me to let me know. Version 1.1.3 should be better. Sorry for flaking on it for a while. ### 1/5 — App doesn’t open at all *2019-02-24* I am unable to open the app. There is a flash of the ghost and that’s it. Very disappointing because I was really looking forward to this app. **Developer response:** Yeah, I'd neglected OpEvol for a while. I hadn't touched it in a coupe of years and didn't know it was bonked with newer versions of iOS until someone emailed me to let me know. Version 1.1.3 should be better. Sorry for flaking on it for a while. ### 1/5 — won’t even open *2019-02-22* my ipad says this is compatible but when i try to open it, i see a flash of the ghost and it crashes. can’t find support contact. **Developer response:** Yeah, I'd neglected OpEvol for a while. I hadn't touched it in a coupe of years and didn't know it was bonked with newer versions of iOS until someone emailed me to let me know. Version 1.1.3 should be better. Sorry for flaking on it for a while. ### 4/5 — I couldn’t find an email *2018-10-09* So this update worsened the application running iOS12-9 - on 5 different devices ??? Just so youes guyz know - Really cool ;just not working anymore- **Developer response:** Yeah, I'd neglected OpEvol for a while. I didn't know it was bonked until someone emailed me to let me know. Version 1.1.3 should be better. ## Frequently asked questions about OpEvol ### What is OpEvol? OpEvol is an entertainment application that animates geometric patterns and colors inspired by 1960s Op Art, creating a dynamic visual experience. ### What devices does OpEvol support? OpEvol is available for iPhone, iPad, and iPod devices. ### What is the age rating for OpEvol? OpEvol has an age rating of 4+, making it suitable for a wide audience. ### How often is OpEvol updated? The latest version of OpEvol is 1.1.5, and it was last updated on February 1, 2021. ### What is the price of OpEvol? OpEvol is a paid application and costs $0.99. ### Can OpEvol be used with Air Display? Yes, OpEvol is designed to be sent to Air Display, allowing for larger screen viewing. ### What is the user sentiment for OpEvol based on ratings? OpEvol has an average rating of 3.1 stars from 17 ratings, indicating a mixed user reception. ### Does OpEvol have in-app purchases? No, OpEvol does not feature any in-app purchases. ## Version history (last 5 releases) ### 2.0 — 2026-08-14 A complete rewrite of the classic version. External displays/projectors. Movie export. New patterns. ### 1.1.5 — 2021-02-01 fix for iOS14, which changed how the sliders built ### 1.1.4 — 2020-08-09 updated to take into account modern screens when positioning controls at the edge of the screen ### 1.1.3 — 2020-08-07 fixed a crash on the default animation that hosed launching from new downloads :( ### 1.1 — 2018-10-03 Updated for compatibility with latest iOS version. ## Apps similar to OpEvol | App | Rating | Price | Category | | --- | --- | --- | --- | | [360 Labs](https://appshunter.io/ios/app/360-labs/id1466270366) | 4.0 (3) | Free | Entertainment | | [Voxel 3D - Pixel Art Editor](https://appshunter.io/ios/app/voxel-3d-pixel-art-editor/id1467713317) | 4.3 (3) | $6.99 | Entertainment | | [Überdoodle](https://appshunter.io/ios/app/uberdoodle/id372062013) | 3.8 (11) | $1.99 | Entertainment | | [Pattern Artist - Easily Create Patterns, Wallpaper and Abstract Art](https://appshunter.io/ios/app/pattern-artist-easily-create-patterns-wallpaper-and-abstract-art/id583736030) | 4.6 (11) | $1.99 | Entertainment | | [Infinite Album](https://appshunter.io/ios/app/infinite-album/id1637359196) | 5.0 (1) | Free | Entertainment | | [Light Creations](https://appshunter.io/ios/app/light-creations/id591172844) | 4.1 (14) | $2.99 | Entertainment | ## More apps by Muddlegeist - [Radio Rethink](https://appshunter.io/ios/app/radio-rethink/id6448702781) - [WFMU Archive Bunker](https://appshunter.io/ios/app/wfmu-archive-bunker/id6469734368) - [Blozzum Bitty](https://appshunter.io/ios/app/blozzum-bitty/id6781744293) - [Sploopy](https://appshunter.io/ios/app/sploopy/id6787775965) All apps by Muddlegeist: https://appshunter.io/developer/701677888 --- *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 2026-08-19.*