# Kwarks vs Hard Math Riddles

The clearest difference is in-app purchases: Hard Math Riddles at none against Kwarks's 1. Hard Math Riddles also leads on update cadence (every 2 days vs monthly) and iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Kwarks sells 1 one-off in-app purchase. Hard Math Riddles asks for nothing beyond the download.

Kwarks ships an update monthly, Hard Math Riddles every 2 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Kwarks | Hard Math Riddles |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 2 days** |
| Size | 10 MB | 32 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Piotr Poliwoda](https://appshunter.io/developer/1597787970) | [SEEK YOUR WAY OUT](https://appshunter.io/developer/1881488587) |

## What reviewers say

### Kwarks

[App page](https://appshunter.io/ios/app/kwarks/id6754876586)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


### 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 Kwarks free?

Kwarks is free to download, with in-app purchases available.

### Is Hard Math Riddles free?

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

### Do Kwarks or Hard Math Riddles have ads?

Both Kwarks and Hard Math Riddles show ads.

### Which is updated more often, Kwarks or Hard Math Riddles?

Kwarks ships an update monthly, and Hard Math Riddles every 2 days. Most recently, Kwarks was updated on October 28, 2026 and Hard Math Riddles on October 25, 2026.

---

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