# MaxiAP Diag vs Hamss

The clearest difference is in-app purchases: Hamss at none against MaxiAP Diag's 28. Hamss also leads on update cadence (every 2 months vs every 5 months). MaxiAP Diag's advantage is iOS requirement (13.0 vs 15.5). On price, ads and device support there is nothing between them.

Both are free to download. MaxiAP Diag sells 28 one-off in-app purchases. Hamss asks for nothing beyond the download.

MaxiAP Diag ships an update every 5 months, Hamss every 2 months. The most recent releases landed on September 14, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | MaxiAP Diag | Hamss |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (10 ratings)](https://appshunter.io/ios/app/maxiap-diag/id6463833580/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 104 MB | 63 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Autel Intelligent Technology Co., Ltd.](https://appshunter.io/developer/770747094) | [Shehab Mohsen](https://appshunter.io/developer/1832564359) |

## What reviewers say

### MaxiAP Diag

[App page](https://appshunter.io/ios/app/maxiap-diag/id6463833580)

This management app helps DIY vehicle owners with repairs, maintenance, and customization. It offers diagnostic insights, common dashboard light explanations, and service functions for various car models. Monitor your vehicle's health and access repair shop information.

**Highlights:** Enhanced system diagnostics, OBDII test (read/erase codes, live data), Auto VIN vehicle identification, Vehicle health monitoring, DIY service functions (oil reset, TPMS), EV/Hybrid battery testing, Common dashboard light guide

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

**In-app purchases (28)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mazda for one year | $21.99 | one-time |
| Mini for one year | $21.99 | one-time |
| INFINITI for one year | $21.99 | one-time |
| Lamborghini for one year | $21.99 | one-time |
| Mitsubishi for one year | $21.99 | one-time |
| Cadillac for one year | $21.99 | one-time |
| Chrysler for one year | $21.99 | one-time |
| Scion for one year | $21.99 | one-time |
| Subaru for one year | $21.99 | one-time |
| GMC for one year | $21.99 | one-time |
| Buick for one year | $21.99 | one-time |
| Audi for one year | $21.99 | one-time |
| Acura for one year | $21.99 | one-time |
| Lexus for one year | $21.99 | one-time |
| Volkswagen for one year | $21.99 | one-time |
| Nissan for one year | $21.99 | one-time |
| Ford for one year | $21.99 | one-time |
| Honda for one year | $21.99 | one-time |
| BMW for one year | $21.99 | one-time |
| Chevrolet for one year | $21.99 | one-time |
| Dodge for one year | $21.99 | one-time |
| Hyundai for one year | $21.99 | one-time |
| Jeep for one year | $21.99 | one-time |
| Kia for one year | $21.99 | one-time |
| Mercedes-Benz for one year | $21.99 | one-time |
| Ram for one year | $21.99 | one-time |
| Toyota for one year | $21.99 | one-time |
| Volvo for one year | $21.99 | one-time |


### Hamss

[App page](https://appshunter.io/ios/app/hamss/id6758829984)

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

**In-app purchases:** none


## Frequently asked questions

### Is MaxiAP Diag free?

MaxiAP Diag is free to download, with in-app purchases available.

### Is Hamss free?

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

### Do MaxiAP Diag or Hamss have ads?

Neither MaxiAP Diag nor Hamss shows ads.

### Which is updated more often, MaxiAP Diag or Hamss?

MaxiAP Diag ships an update every 5 months, and Hamss every 2 months. Most recently, MaxiAP Diag was updated on September 14, 2026 and Hamss on September 20, 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.*