# UMA Tune

> M5 ECU tuning and real-time engine data monitoring application. (iPhone/iPad app by UMA RACING SDN. BHD..)

- Source: https://appshunter.io/ios/app/uma-tune/id1405467126 (this page in markdown: same URL + `.md`)
- Developer: [UMA RACING SDN. BHD.](https://appshunter.io/developer/1403287201)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 3.60/5 from 5 App Store ratings · 86 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 122 MB
- Languages: American English, Chinese (Simplified, China), Thai, Chinese (Traditional, Taiwan), Vietnamese
- Released: 2018-09-01
- Data updated: 2026-06-11
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/uma-tune/id1405467126/reviews.md

## What is UMA Tune?

UMA Tune app support M5 ECU.
Provide Monitor Pro/Monitor Lite two type to monitor real time engine data.

The main function are as below:
1. Engine data monitor and record
2. Power meter function (hp/torque/acceleration)
3. Log data analysis
4. Malf-code read
5. Engine parameters adjust: Fuel Base, Fuel Adj., Fuel Acc.,Spark Angle, Idle RPM, RPM Limit, VVA Control, Dec Fuel Cut, Auto Tune, WB O2 CL, Quick Shift, Speed Gain, Coolant Fan, TPS Learn
6. Quick Burn model base
7. Tuning map sharing

## Key features

- Real-time engine data monitoring
- Power meter (HP/torque/acceleration)
- Log data analysis
- Malf-code reading
- Engine parameter adjustment
- Tuning map sharing

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Basic Functionality | $9.99 | one-time |
| Auto Tune | $2.99 | one-time |


## Recent user reviews (10 of 86)

All indexed reviews: https://appshunter.io/ios/app/uma-tune/id1405467126/reviews.md

### 2/5 — Inaccurate gear detection

*2025-12-12, version 2.7.1*

Gear detection is inaccurate after recent usage/update.

The app frequently displays the wrong gear.
Example: the motorcycle is physically in Gear 3, but the app still shows Gear 2.

This issue did not occur previously and started recently, indicating a regression bug.
RPM and speed readings remain stable, so this is not user error.

Incorrect gear detection affects data logging accuracy and makes tuning analysis unreliable.
I have contacted the developer via email but received no response.

Please fix the gear inference algorithm or provide manual gear ratio calibration.

### 3/5 — b link issue

*2025-07-29, version 2.7.1*

Sometimes can connect somtimes cannot, i even replace with a new b link and after awhile it became the same issue...

### 5/5 — Update

*2025-05-27, version 2.7.1*

Plsss update the app

### 2/5 — I have already paid the app

*2025-05-17, version 2.7.1*

Its says i need to purhcase the app again

### 1/5 — I can't view my log it's keeps crashing waste of time and money

*2025-03-08, version 2.7.1*

I can't view my log it's keeps crashing waste of time and money

### 1/5 — Đừng sài mất tiền oan

*2025-03-04, version 2.7.1*

Đã mua ap song sài thời gian lạy kiu nân cấp

### 1/5 — Để lâu ko vô h bắt mua lại là sao

*2025-02-26, version 2.7.1*

Quá tệ mua 219k xong mua thêm Autotul h mất là sao

### 1/5 — upgrade

*2025-02-20, version 2.7.1*

why must buy again??! i already pay 50 for the apps..now need upgarde for what?ugrade then pay again 50?what the hell

### 2/5 — Lỗi đã thanh toán 1 lần nhưng vẫn bị yêu cầu thanh toán

*2025-02-12, version 2.7.1*

Tôi đã mua app 249.000vnd nhưng sử dụng 1 thời gian lại bị bắt mua lại. Trong khi lúc mua báo chỉ thanh toán 1 lần. Vui lòng check lại thông tin tôi đã thanh toán và mỏ khoá lại !

### 1/5 — Saya sudah membayar 169 tetapi tidak permanen besok nya sudah harus bayar lagi

*2025-01-29, version 2.7.1*

Tolong bantuan nya uma racing saya sudah membayar untuk mapping tetapi sekarang suruh bayar lagi🙏🏻

## Frequently asked questions about UMA Tune

### What does the UMA Tune app do?

This app supports M5 ECUs and provides two modes for monitoring real-time engine data: Monitor Pro and Monitor Lite. It allows users to monitor and record engine data, measure horsepower and torque, analyze logs, read malf-codes, and adjust various engine parameters.

### What are the key features of UMA Tune?

Key features include real-time engine data monitoring and recording, a power meter function for HP/torque/acceleration, log data analysis, malf-code reading, and extensive engine parameter adjustments such as fuel base, spark angle, and RPM limits. It also supports quick burn models and tuning map sharing.

### Is UMA Tune free to use?

The application is free to download and use, but it offers in-app purchases. This suggests that some advanced features or functionalities might require a purchase to unlock.

### What is the primary use case for UMA Tune?

The primary use case is for individuals who want to gain detailed insights into their vehicle's engine performance and have the ability to fine-tune various engine parameters for optimization. This includes monitoring diagnostics, analyzing performance metrics, and making adjustments to the ECU.

## Version history (last 5 releases)

### 2.7.1 — 2021-03-22

Fix the crashing issue of "Unit Setting" and "Language Setting" in iPad.

### 2.7 — 2021-03-12

Support iPad.

### 2.6 — 2021-02-22

Update the content in the page of "News".

### 2.5.2 — 2021-01-14

Fix the malfunction issue of "Engine MAP" and "Engine Log Data" import.

### 2.5.1 — 2020-10-13

Correct text color of Adjust Factor.

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## More apps by UMA RACING SDN. BHD.

- [UMA M9](https://appshunter.io/ios/app/uma-m9/id6450772085)

All apps by UMA RACING SDN. BHD.: https://appshunter.io/developer/1403287201

## Related topics

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*