# 24 vs GoBook ZA

The clearest difference is update cadence: 24 at every 2 months against GoBook ZA's every 19 months. 24 also leads on iOS requirement (13.0 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.

24 ships an update every 2 months, GoBook ZA every 19 months. The most recent releases landed on November 2, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | 24 | GoBook ZA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 19 months |
| Size | 51 MB | 166 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Oryx Systems CC](https://appshunter.io/developer/966072104) | [Mark Nicol](https://appshunter.io/developer/1212792776) |

## What reviewers say

### 24

[App page](https://appshunter.io/ios/app/24-7-security/id1169390194)

**In-app purchases:** none


### GoBook ZA

[App page](https://appshunter.io/ios/app/gobook-za/id1212792777)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 24 free?

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

### Is GoBook ZA free?

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

### Do 24 or GoBook ZA have ads?

Neither 24 nor GoBook ZA shows ads.

### Which is updated more often, 24 or GoBook ZA?

24 ships an update every 2 months, and GoBook ZA every 19 months. Most recently, 24 was updated on November 2, 2026 and GoBook ZA on October 26, 2026.

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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.*