# Fast Max vs ZDoc

The clearest difference is update cadence: ZDoc at every 4 days against Fast Max's every 2 months. 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.

Fast Max ships an update every 2 months, ZDoc every 4 days. The most recent releases landed on October 9, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Fast Max | ZDoc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (11 ratings)](https://appshunter.io/ios/app/fast-max/id1513677327/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 25 MB | 34 MB |
| Requires iOS | 13 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tury do Brasil Industria e Comercio Ltda.](https://appshunter.io/developer/1538290553) | [Zero Dezoito Sistemas](https://appshunter.io/developer/1612869273) |

## What reviewers say

### 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


### ZDoc

[App page](https://appshunter.io/ios/app/zdoc/id6800429468)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fast Max free?

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

### Is ZDoc free?

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

### Do Fast Max or ZDoc have ads?

Neither Fast Max nor ZDoc shows ads.

### Which is updated more often, Fast Max or ZDoc?

Fast Max ships an update every 2 months, and ZDoc every 4 days. Most recently, Fast Max was updated on October 9, 2026 and ZDoc on October 17, 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.*