Tesla Toy vs OpEvol
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tesla Toy
An interactive entertainment app that simulates a powerful electrical field. Touching the screen causes thousands of particles to react dynamically and amusingly.
- Interactive electrical field simulation
- Thousands of reactive particles
- Touchscreen interaction
- Amusing particle reactions
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Tesla Toy is an interactive toy. Touching the screen generates a powerful electrical field that makes the thousands of particles react in amusing ways.
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
Screenshots
Verdict
The clearest difference is review sentiment: Tesla Toy at 83% against OpEvol's 27%. Tesla Toy also leads on in-app purchases (none vs 1) and update cadence (every 3 months vs every 22 months). OpEvol's advantage is price (Free vs $1.99). On ads and device support 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
OpEvol is free to download; Tesla Toy costs $1.99 up front. OpEvol sells 1 in-app purchase, starting at $6.99 per year. Tesla Toy asks for nothing beyond the download.
Tesla Toy ships an update every 3 months, OpEvol every 22 months. The most recent releases landed on October 21, 2026 and October 15, 2026 respectively.
| Parameter | Tesla Toy | OpEvol |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.6 (1.6K ratings) — better | — |
| Positive reviews | 83.2% of reviews — better | 27.3% of reviews |
| Number of ratings | 1.6K — better | — |
| Update frequency | Every 3 months — better | Every 22 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple TV |
| Requires iOS | 9.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 15 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | PDJ Apps | Muddlegeist |
Customer experience
Tesla Toy
OpEvol
Bugs and requests
Tesla Toy
Reported bugs
2 issues- Incompatibility with certain devices or screen sizes
- Issues with taking screenshots or saving images
Requested features
4 requests- Add sound effects or music integration
- Introduce more varied animations and patterns
- Implement a save/load feature for creations
- Allow recording of sessions as videos
OpEvol
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Tesla Toy
No in-app purchases
OpEvol
- OpEvol Annual Subscription$6.991 Year
