# Robo Run Memory vs Hard Math Riddles

The clearest difference is ads: Robo Run Memory at none against Hard Math Riddles's shown. Robo Run Memory also leads on iOS requirement (12.2 vs 15.0). Hard Math Riddles's advantage is update cadence (every 2 days vs every 6 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Robo Run Memory ships an update every 6 months, Hard Math Riddles every 2 days. The most recent releases landed on October 4, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Robo Run Memory | Hard Math Riddles |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 2 days** |
| Size | 30 MB | 32 MB |
| Requires iOS | **12.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chris Clements](https://appshunter.io/developer/1023107489) | [SEEK YOUR WAY OUT](https://appshunter.io/developer/1881488587) |

## What reviewers say

### Robo Run Memory

[App page](https://appshunter.io/ios/app/robo-run-memory/id1273765882)

**Features:** macOS Compatibility

**In-app purchases:** none


### Hard Math Riddles

[App page](https://appshunter.io/ios/app/hard-math-riddles-logic-game/id6759895738)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Robo Run Memory free?

Robo Run Memory is free to download, with no in-app purchases.

### Is Hard Math Riddles free?

Hard Math Riddles is free to download, with no in-app purchases.

### Do Robo Run Memory or Hard Math Riddles have ads?

Hard Math Riddles shows ads; Robo Run Memory does not.

### Which is updated more often, Robo Run Memory or Hard Math Riddles?

Robo Run Memory ships an update every 6 months, and Hard Math Riddles every 2 days. Most recently, Robo Run Memory was updated on October 4, 2026 and Hard Math Riddles on October 14, 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.*