# Adler vs Only24

The clearest difference is in-app purchases: Adler at none against Only24's 3. Only24's advantage is update cadence (every 5 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Only24 sells 3 in-app purchases, starting at $7.99 per month. Adler asks for nothing beyond the download.

Adler ships an update monthly, Only24 every 5 days. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Adler | Only24 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Size | 25 MB | 95 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Adler Inc.](https://appshunter.io/developer/1638866791) | [taewoo kim](https://appshunter.io/developer/1831258848) |

## What reviewers say

### Adler

[App page](https://appshunter.io/ios/app/adler/id1638866789)

**Features:** macOS Compatibility

**In-app purchases:** none


### Only24

[App page](https://appshunter.io/ios/app/only24/id6759185657)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 프리미엄 | $7.99 | per month |
| 프리미엄 | $69.99 | per year |
| 후원 | $34.99 | one-time |


## Frequently asked questions

### Is Adler free?

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

### Is Only24 free?

Only24 is free to download, with in-app purchases available.

### Do Adler or Only24 have ads?

Neither Adler nor Only24 shows ads.

### Which is updated more often, Adler or Only24?

Adler ships an update monthly, and Only24 every 5 days. Most recently, Adler was updated on October 13, 2026 and Only24 on October 7, 2026.

---

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