OKO vs Math riddles challenge
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
OKO
A captivating puzzle game that transforms NASA satellite images into a cosmic visual and auditory experience. Reconstruct images by precisely stopping rotating circular pieces, with increasingly complex patterns and otherworldly soundscapes.
- Hypnotizing puzzle gameplay
- NASA satellite imagery
- Otherworldly soundscapes
- Retina graphics
- Increasingly complex patterns
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* Swisscom App of the Year 2012 OKO is a hypnotising puzzle game that turns satellite images taken from the NASA database into a mesmerising journey around the Planet. The game's rich otherworldly soundscapes are composed from recordings taken aboard space shuttles. The goal is to reconstruct an image by stopping rotating circles cut out from the image. For each level, the animated pieces draw increasingly complex patterns. The challenge is to be attentive to image juxtapositions in order to stop each circles movement at the right moment. Now available on the App Store with retina graphics! "Beautiful. Engaging. Excellent transmedia incorporation of space imagery.” – Yvonne Clearwater, New Media Innovation Leader at NASA / Ames Research Center
Math riddles challenge
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About this game This game is mainly focused for train your brain with some math puzzles and riddle tricks. Math riddles can be learned and enjoy the puzzle-thinking experience. Being Mentally Active is as important as being Physically Active in a Child’s Life. There can be nothing better than riddles to give your brain exercise in the funniest way. Most kids feel Mathematics is a nightmare and feel it is quite difficult. Give your brain a stellar workout with the funniest riddles over here. Test yourself and have fun with the Math Riddles for Kids one of the smartest ways to approach a subject. Using some fun strategies while approaching the subject helps parents and teachers to inculcate some interest among Kids. Dedicate time to solve these puzzles and make your day. We tried providing some amazing Answers to help you out. Kids can easily crack these riddles if they pay some concentration, and apply critical thinking, and logical reasoning. The best brain fun maths game, this game will help you to test and train your brain with some tricky calculations with attractive images. play with some fun calculations, math riddles with attractive images are help you to concentrate on this game and play well.
Screenshots
Verdict
The clearest difference is price: Math riddles challenge at Free against OKO's $3.99. Math riddles challenge also leads on update cadence (weekly vs every 44 months) and iOS requirement (11.0 vs 14.0). OKO's advantage is ads (none vs shown). On in-app purchases 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
Math riddles challenge is free to download; OKO costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
OKO ships an update every 44 months, Math riddles challenge weekly. The most recent releases landed on September 30, 2026 and October 3, 2026 respectively.
| Parameter | OKO | Math riddles challenge |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.0 (3 ratings) — better | — |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 44 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 55 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Playables | Merbin Joe |
In-app purchases
OKO
No in-app purchases
Math riddles challenge
No in-app purchases
Questions
Is OKO free?
Is Math riddles challenge free?
Do OKO or Math riddles challenge have ads?
Which is updated more often, OKO or Math riddles challenge?
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