# AB 18 vs Zendablue

The clearest difference is update cadence: Zendablue at every 4 days against AB 18's every 3 months. AB 18's advantage is iOS requirement (12.4 vs 15.0). On price, ads, 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.

AB 18 ships an update every 3 months, Zendablue every 4 days. The most recent releases landed on October 3, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | AB 18 | Zendablue |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Size | 20 MB | 4 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DLA Piper UK LLP](https://appshunter.io/developer/513223764) | [ZendaBlue ApS](https://appshunter.io/developer/6785587082) |

## What reviewers say

### AB 18

[App page](https://appshunter.io/ios/app/ab-18/id1451713131)

**Features:** macOS Compatibility

**In-app purchases:** none


### Zendablue

[App page](https://appshunter.io/ios/app/zendablue/id6785587080)

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

**In-app purchases:** none


## Frequently asked questions

### Is AB 18 free?

AB 18 is free to download, with no in-app purchases.

### Is Zendablue free?

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

### Do AB 18 or Zendablue have ads?

Neither AB 18 nor Zendablue shows ads.

### Which is updated more often, AB 18 or Zendablue?

AB 18 ships an update every 3 months, and Zendablue every 4 days. Most recently, AB 18 was updated on October 3, 2026 and Zendablue on October 17, 2026.

---

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