# OKO⁢ vs Math riddles challenge

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.

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.

## The numbers

| Metric | OKO⁢ | Math riddles challenge |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/oko/id524351381/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 44 months | **Weekly** |
| Monetization | Paid | — |
| Size | 55 MB | 22 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Playables](https://appshunter.io/developer/904930239) | [Merbin Joe](https://appshunter.io/developer/1281696078) |

## What reviewers say

### OKO⁢

[App page](https://appshunter.io/ios/app/oko/id524351381)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Math riddles challenge

[App page](https://appshunter.io/ios/app/math-riddles-challenge/id1668806527)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*