OpEvol vs Prism
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpEvol
Experience a dynamic, ever-changing display of psychedelic visuals inspired by 1960s Op Art. This app creates animated fields of geometric colors and contrasts for passive viewing or interactive play.
- Animated geometric patterns
- Op Art inspired visuals
- Psychedelic color displays
- Interactive visual play
- Air Display compatibility
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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
Prism
Create stunning, evolving visual art from simple gestures. This app uses mathematical principles to generate mesmerizing patterns that react to touch and sound. Share your digital masterpieces or enjoy them privately.
- Gesture-based art creation
- Mathematically generated patterns
- Music-reactive visuals
- Mesmerizing animations
- Shareable digital masterpieces
- Intuitive controls
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Transform simple gestures into breathtaking visual art. Prism harnesses the beauty of mathematics to create stunning patterns that flow and evolve with your touch. Bring your ideas to life through intuitive controls, watch as your creations respond to music, and craft mesmerizing animations that capture the imagination. Every movement becomes an artistic expression, every sound a visual symphony. Share your digital masterpieces with the world or keep them as personal treasures. With Prism, everyone can discover the artist within—no experience needed, just curiosity and creativity.
Screenshots
Verdict
The clearest difference is update cadence: Prism at every 5 days against OpEvol's every 22 months. Prism also leads on monetization model (free with in-app purchases vs paid) and iOS requirement (18.0 vs 26.0). OpEvol's advantage is device support (3 vs 1). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. OpEvol sells 1 in-app purchase, starting at $6.99 per year and Prism sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
OpEvol ships an update every 22 months, Prism every 5 days. The most recent releases landed on October 15, 2026 and October 28, 2026 respectively.
| Parameter | OpEvol | Prism |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 27.3% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 22 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, Apple TV — better | iPhone |
| Requires iOS | 26.0 | 18.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Muddlegeist | Christopher Marcus George |
In-app purchases
OpEvol
- OpEvol Annual Subscription$6.991 Year
Prism
- Prism Pro$4.99
