Comparison

OKO⁢ vs Math riddles challenge

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Hypnotizing puzzle gameplay
  • NASA satellite imagery
  • Otherworldly soundscapes
  • Retina graphics
  • Increasingly complex patterns
Features
Read full description

* 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

About

Math riddles challenge

Features
Read full description

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

OKO⁢4 screens
Math riddles challenge4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
OKO⁢ versus Math riddles challenge: the parameters behind the verdict, then further details
ParameterOKO⁢Math riddles challenge
Price$3.99Free — better
Rating4.0 (3 ratings) — better—
Positive reviews71.4% of reviews—
Number of ratings3 — better—
Update frequencyEvery 44 monthsWeekly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.011.0 — better
Further details — not scored
Size55 MB22 MB
Age rating4+4+
DeveloperPlayablesMerbin Joe

In-app purchases

None

OKO⁢

No in-app purchases

None

Math riddles challenge

No in-app purchases

Questions

Is OKO⁢ free?
OKO⁢ costs $3.99, with no in-app purchases.
Is Math riddles challenge free?
Math riddles challenge is free to download, with no in-app purchases.
Do OKO⁢ or Math riddles challenge have ads?
Math riddles challenge shows ads; OKO⁢ does not.
Which is updated more often, OKO⁢ or Math riddles challenge?
OKO⁢ ships an update every 44 months, and Math riddles challenge weekly. Most recently, OKO⁢ was updated on September 30, 2026 and Math riddles challenge on October 3, 2026.

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