aRacerSmartLite vs UMA M9
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
aRacerSmartLite
Monitor real-time engine data from your RC/RS Super and RCMini5 ECU. Analyze logged data, read diagnostic trouble codes, and stay updated with the latest news.
- Real-time engine data monitoring
- Engine data recording
- Log data analysis
- Malf-code reading
- News updates
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aRacer Smart Lite app support RC/RS Super and RCMini5 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. Log data analysis 3. Malf-code read 4. aRacer news
UMA M9
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.
- Engine data monitoring
- Malf-code reading
- Fuel adjustment
- Engine tuning
- Tuning map sharing
- Cloud ECU firmware access
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M9 APP supports UMA M9 ECU. The main functions are as below: 1. Engine data monitor 2. Malf-code read 3. Engine tuning: 3.1 Fuel Adj., Fuel Acc. 3.2 Fuel Temperature Compensation 3.3 IG, 3.4 Idle RPM, RPM Limit, VVA Control, Speed Gain, Coolant Fan 3.5 Auto Tune, 3.6 Idle Lope, Backfire 4. Tuning map sharing 5. QuickBurn: Cloud data of ECU firmware and calibration file 6. Function upgrade: Choosing and purchasing the upgrated function by user.
Screenshots
Verdict
The clearest difference is update cadence: aRacerSmartLite at every 11 days against UMA M9's every 6 weeks. On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
aRacerSmartLite ships an update every 11 days, UMA M9 every 6 weeks. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.
| Parameter | aRacerSmartLite | UMA M9 |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 47.2% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 11 days — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 10.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 192 MB | 117 MB |
| Age rating | 4+ | 4+ |
| Developer | ARACER SPEEDTEK INC. | UMA RACING SDN. BHD. |
Customer experience
aRacerSmartLite
UMA M9
In-app purchases
aRacerSmartLite
No in-app purchases
UMA M9
No in-app purchases
Questions
Is aRacerSmartLite free?
Is UMA M9 free?
Do aRacerSmartLite or UMA M9 have ads?
Which is updated more often, aRacerSmartLite or UMA M9?
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