# Puzzle&Math vs Harfer

The clearest difference is in-app purchases: Puzzle&Math at none against Harfer's 4. Harfer's advantage is update cadence (every 2 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Harfer sells 4 one-off in-app purchases. Puzzle&Math asks for nothing beyond the download.

Puzzle&Math ships an update every 4 months, Harfer every 2 weeks. The most recent releases landed on October 12, 2026 and December 4, 2025 respectively.

## The numbers

| Metric | Puzzle&Math | Harfer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Size | 18 MB | 85 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Koji Sato](https://appshunter.io/developer/724048840) | [ETREXIO DIGITAL SOLUTIONS BILISIM VE ILETISIM TEKNOLOJILERI TICARET LIMITED SIRKETI](https://appshunter.io/developer/1397155283) |

## What reviewers say

### Puzzle&Math

[App page](https://appshunter.io/ios/app/puzzle-and-math-brain-training/id1043368143)

**Features:** macOS Compatibility

**In-app purchases:** none


### Harfer

[App page](https://appshunter.io/ios/app/harfer/id1620694017)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 20 Harfer Token | $0.99 | one-time |
| 50 Harfer Token | $1.99 | one-time |
| 100 Harfer Token | $2.99 | one-time |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Puzzle&Math free?

Puzzle&Math is free to download, with no in-app purchases.

### Is Harfer free?

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

### Do Puzzle&Math or Harfer have ads?

Both Puzzle&Math and Harfer show ads.

### Which is updated more often, Puzzle&Math or Harfer?

Puzzle&Math ships an update every 4 months, and Harfer every 2 weeks. Most recently, Puzzle&Math was updated on October 12, 2026 and Harfer on December 4, 2025.

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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.*