# Fullstand Next vs UMA M9

The clearest difference is rating: UMA M9 at 5.0 against Fullstand Next's 4.1. UMA M9 also leads on ads (none vs shown) and monetization model (free vs ad-supported). Fullstand Next's advantage is ratings volume (19 vs 1). On price, update cadence, 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.

UMA M9 holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Fullstand Next has 19 ratings behind it against 1, so its average is the more settled of the two.

Fullstand Next ships an update monthly, UMA M9 every 6 weeks. The most recent releases landed on September 21, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Fullstand Next | UMA M9 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (19 ratings)](https://appshunter.io/ios/app/fullstand-next/id1499293163/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/uma-m9/id6450772085/reviews)** |
| Number of ratings | **19** | 1 |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Ad-supported | **Free** |
| Size | 72 MB | 117 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ECU=SHOP](https://appshunter.io/developer/1389703440) | [UMA RACING SDN. BHD.](https://appshunter.io/developer/1403287201) |

## What reviewers say

### Fullstand Next

[App page](https://appshunter.io/ios/app/fullstand-next/id1499293163)

This application provides real-time engine tuning capabilities for standalone systems. It offers features like anti-theft, injector and ignition tuning, and data logging for performance analysis and calibration.

**Highlights:** Real-Time Tuning, Anti-Theft, Injector Tuning, Ignition Tuning, Data Log, Calibration

**Features:** Vision Pro support

**In-app purchases:** none


### UMA M9

[App page](https://appshunter.io/ios/app/uma-m9/id6450772085)

This application connects to a specific engine control unit (ECU) to monitor engine data, read diagnostic trouble codes, and perform various engine tuning adjustments. It also allows for tuning map sharing and accessing cloud-based ECU firmware and calibration files.

**Highlights:** Engine data monitoring, Malf-code reading, Fuel adjustment, Engine tuning, Tuning map sharing, Cloud ECU firmware access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fullstand Next free?

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

### Is UMA M9 free?

UMA M9 is free to download, with no in-app purchases.

### Which has better reviews, Fullstand Next or UMA M9?

UMA M9 is rated higher. Fullstand Next averages 4.1 out of 5 from 19 ratings, while UMA M9 averages 5.0 from 1 ratings.

### Do Fullstand Next or UMA M9 have ads?

Fullstand Next shows ads; UMA M9 does not.

### Which is updated more often, Fullstand Next or UMA M9?

Fullstand Next ships an update monthly, and UMA M9 every 6 weeks. Most recently, Fullstand Next was updated on September 21, 2026 and UMA M9 on September 11, 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.*