# 21 vs HamiLoop

The clearest difference is in-app purchases: 21 at none against HamiLoop's 5. 21 also leads on update cadence (every 2 days vs every 6 days) and iOS requirement (15.1 vs 18.2). On price, ads and device support there is nothing between them.

Both are free to download. HamiLoop sells 5 one-off in-app purchases. 21 asks for nothing beyond the download.

21 ships an update every 2 days, HamiLoop every 6 days. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 21 | HamiLoop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Every 6 days |
| Size | 39 MB | 12 MB |
| Requires iOS | **15.1** | 18.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Chee Hoong Khor](https://appshunter.io/developer/1880679655) | [Bastion Peak e.U.](https://appshunter.io/developer/1882104912) |

## What reviewers say

### 21

[App page](https://appshunter.io/ios/app/21-twenty-one/id6759793279)

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

**In-app purchases:** none


### HamiLoop

[App page](https://appshunter.io/ios/app/hamiloop/id6759982146)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Hints | $0.49 | one-time |
| 25 Hints | $0.99 | one-time |
| Premium | $3.99 | one-time |
| 100 Hints | $3.99 | one-time |
| 250 Hints | $7.99 | one-time |


## Frequently asked questions

### Is 21 free?

21 is free to download, with no in-app purchases.

### Is HamiLoop free?

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

### Do 21 or HamiLoop have ads?

Both 21 and HamiLoop show ads.

### Which is updated more often, 21 or HamiLoop?

21 ships an update every 2 days, and HamiLoop every 6 days. Most recently, 21 was updated on October 7, 2026 and HamiLoop on October 12, 2026.

---

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