Überdoodle vs OpEvol
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Überdoodle
Relive nostalgic childhood fun with a classic spiral drawing tool. Create intricate patterns with virtual gears and a magic rainbow pen, or simply paint with your finger. Share your creations as wallpapers or send them to loved ones.
- Classic spirograph drawing tool
- Create custom gears and rings
- Multiple drawing modes
- Import photos
- Apple Pencil support
- Draw hypotrochoids and epitrochoids
- Various paper types and background colors
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Thanks for all the amazing feedback - we just love to hear your thoughts, comments and ideas! Überdoodle: Remember the good old spirograph toy? Get nostalgic with this classic spiral drawing tool. Great for children too! The box contains lots of colorful gears, rings and pencils - including a MAGIC rainbow pen - and an unlimited supply of (virtual) paper! Draw beautiful patterns using the gears or simply paint directly on the paper using your finger. Share your doodles to family and friends - or save them and use them as beautiful wallpapers for your iPad, iPhone or iPod Touch. Features: • A Gear Factory where you can create custom gears and rings • Multiple drawing modes: calligraphy pen, celtic braids and multicolor gradients by selecting up to three pencils at the same time • Import photos from your Photo Library • Snap to previous drawing locations • Support for the Apple Pencil. Change calligraphy angle by tilting the pen. • Draw both hypotrochoids and epitrochoids (gears inside a ring or gears on the outside of another gear) • Different paper types and multiple background colors • Eraser and full undo/redo • Change the sizes of gears and rings
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: Überdoodle at 78% against OpEvol's 27%. Überdoodle 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; Überdoodle costs $1.99 up front. OpEvol sells 1 in-app purchase, starting at $6.99 per year. Überdoodle asks for nothing beyond the download.
Überdoodle ships an update every 3 months, OpEvol every 22 months. The most recent releases landed on September 17, 2026 and August 19, 2026 respectively.
| Parameter | Überdoodle | OpEvol |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 3.8 (11 ratings) — better | — |
| Positive reviews | 78.0% of reviews — better | 27.3% of reviews |
| Number of ratings | 11 — 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, Apple Watch — better | iPhone, iPad, Apple TV |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 20 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Morten Bek Ditlevsen | Muddlegeist |
Customer experience
Überdoodle
OpEvol
In-app purchases
Überdoodle
No in-app purchases
OpEvol
- OpEvol Annual Subscription$6.991 Year









