# MKTB vs GBO

The clearest difference is iOS requirement: GBO at 13.0 against MKTB's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MKTB ships an update every 3 months, GBO every 2 months. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | MKTB | GBO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 73 MB | 43 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Grand block technologies](https://appshunter.io/developer/1568301808) | [COMPANY WAJHA AL-MAKAN FOR INFORMATION TECHNOLOGY](https://appshunter.io/developer/1762469893) |

## What reviewers say

### MKTB

[App page](https://appshunter.io/ios/app/mktb/id6464679734)

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

**In-app purchases:** none


### GBO

[App page](https://appshunter.io/ios/app/gbo/id6755510732)

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

**In-app purchases:** none


## Frequently asked questions

### Is MKTB free?

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

### Is GBO free?

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

### Do MKTB or GBO have ads?

Neither MKTB nor GBO shows ads.

### Which is updated more often, MKTB or GBO?

MKTB ships an update every 3 months, and GBO every 2 months. Most recently, MKTB was updated on October 17, 2026 and GBO on October 13, 2026.

---

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