# Optibook vs Global Tuning

The clearest difference is update cadence: Optibook at every 3 months against Global Tuning's every 28 months. Global Tuning's advantage is iOS requirement (13.0 vs 15.1). 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.

Optibook ships an update every 3 months, Global Tuning every 28 months. The most recent releases landed on September 19, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Optibook | Global Tuning |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/global-tuning/id6449699783/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 28 months |
| Monetization | — | Free |
| Size | 93 MB | 12 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Pixlpark](https://appshunter.io/developer/1464659550) | [Roman Ogorodnikov](https://appshunter.io/developer/1690130312) |

## What reviewers say

### Optibook

[App page](https://appshunter.io/ios/app/optibook/id1491132051)

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

**In-app purchases:** none


### Global Tuning

[App page](https://appshunter.io/ios/app/global-tuning/id6449699783)

Shop for car audio, security systems, and accessories with a wide selection of products. Get real-time support, track bonuses, and use a soundproofing calculator. Book installation services at branded centers.

**Highlights:** Wide car audio and accessory selection, Real-time online support, Bonus program with rewards, Soundproofing calculator, Installation booking, New product and promotion notifications

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

**In-app purchases:** none


## Frequently asked questions

### Is Optibook free?

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

### Is Global Tuning free?

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

### Do Optibook or Global Tuning have ads?

Neither Optibook nor Global Tuning shows ads.

### Which is updated more often, Optibook or Global Tuning?

Optibook ships an update every 3 months, and Global Tuning every 28 months. Most recently, Optibook was updated on September 19, 2026 and Global Tuning on September 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.*