# Expert XAiR vs Fast Max

The clearest difference is rating: Expert XAiR at 4.8 against Fast Max's 2.5. Expert XAiR also leads on review sentiment (100% vs 63%). On price, ratings volume, update cadence and ads there is nothing between them.

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

Expert XAiR holds the better App Store score, 4.8 against 2.5. Both are backed by a comparable volume of ratings — 4 and 11 respectively. Written reviews point the same way: 100% of Expert XAiR's written reviews are positive against 63% of Fast Max's.

Expert XAiR ships an update every 3 months, Fast Max every 2 months. The most recent releases landed on June 4, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | Expert XAiR | Fast Max |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/expert-xair/id1506256547/reviews)** | [2.5 (11 ratings)](https://appshunter.io/ios/app/fast-max/id1513677327/reviews) |
| Number of ratings | 4 | **11** |
| Positive reviews | **100.0% of reviews** | 62.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 15 MB | 25 MB |
| Requires iOS | **12.0** | 13 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Expert Electronics Comercio e Fabricacao de Produtos Eletronicos Ltda](https://appshunter.io/developer/1103488615) | [Tury do Brasil Industria e Comercio Ltda.](https://appshunter.io/developer/1538290553) |

## What reviewers say

### Expert XAiR

[App page](https://appshunter.io/ios/app/expert-xair/id1506256547)

Manage your XAiR processor via Bluetooth. Optimize and protect your sound system with features like channel routing, gain control, equalization, and limiting. Save your custom configurations with presets.

**Highlights:** Bluetooth management, Channel routing, Gain control, Equalizer, Crossover, Limiter, Configurable presets

**Features:** macOS Compatibility

**In-app purchases:** none


### Fast Max

[App page](https://appshunter.io/ios/app/fast-max/id1513677327)

This app provides access to advanced automotive electronic technology, specifically focusing on an acceleration module that enhances vehicle performance and safety. It offers features to improve acceleration response and includes security functions like theft prevention and parking assistance.

**Highlights:** Acceleration response improvement, Performance enhancement for exits and hills, Theft prevention (LOCK function), Valet parking mode (PARKING function), Access to TURY automotive electronics

**In-app purchases:** none


## Frequently asked questions

### Is Expert XAiR free?

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

### Is Fast Max free?

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

### Which has better reviews, Expert XAiR or Fast Max?

Expert XAiR is rated higher. Expert XAiR averages 4.8 out of 5 from 4 ratings, while Fast Max averages 2.5 from 11 ratings.

### Do Expert XAiR or Fast Max have ads?

Neither Expert XAiR nor Fast Max shows ads.

### Which is updated more often, Expert XAiR or Fast Max?

Expert XAiR ships an update every 3 months, and Fast Max every 2 months. Most recently, Expert XAiR was updated on June 4, 2026 and Fast Max on August 15, 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.*