# ESR ProMax — Motorcycle ECU Tuning Monitor

> Motorcycle ECU Tuning Monitor (iPhone/iPad app by Suthipoj tripuwabhrut.)

- Source: https://appshunter.io/ios/app/esr-promax/id6772112888 (this page in markdown: same URL + `.md`)
- Developer: [Suthipoj tripuwabhrut](https://appshunter.io/developer/1445632800)
- Category: Utilities, Sports
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 74 MB
- Languages: American English
- Released: 2026-06-18
- Data updated: 2026-07-17
- User reviews in markdown: https://appshunter.io/ios/app/esr-promax/id6772112888/reviews.md

## What is ESR ProMax?

ESR ProMax is a professional ECU tuning application designed 
for motorcycle enthusiasts and technicians. Connect wirelessly 
via Bluetooth to your ESR ECU and take full control of your 
engine performance in real time.
KEY FEATURES
• Real-Time Dashboard
Monitor live engine data including RPM, AFR (Air-Fuel Ratio), 
TPS, ignition timing, injector pulse width, water temperature, 
air temperature, battery voltage, and GPS speed — all on a 
single screen.
• Fuel & Ignition Tuning
Edit injector and ignition maps directly from your phone using 
an intuitive 2D tuning table. Fine-tune fuel delivery and 
spark timing for optimal performance.
• ECU Configuration
Configure compensation tables, cold-start fuel, idle settings, 
motor sport mode, and more — all from your device.
• Save & Load Profiles
Save multiple tune profiles locally and switch between setups 
instantly. Perfect for track days vs. street riding.
• Unit Support
Switch between metric and imperial units to match your 
preference.
REQUIREMENTS
- Compatible ESR ECU hardware
- Bluetooth 4.0 (BLE) enabled device

ESR ProMax puts professional-grade ECU tuning in your pocket. 
Whether you're chasing peak power on the track or dialing in 
fuel efficiency on the street, ESR ProMax gives you the tools 
to get there.


## Version history (last 3 releases)

### 1.0.2 — 2026-07-15

NEW
• Redesigned dashboard with five configurable slots — choose exactly which readings you want on screen, and place AFR wherever it suits you.
• Connection checks before opening any screen that needs to load data from the ECU, so you no longer land on an empty page.

IMPROVEMENTS & FIXES
• Fixed data from a previously connected ECU remaining on screen after pairing with a different box.
• Fixed warranty activation not being recorded to the server in some cases.
• Sharper Stock / Street / Race mode icons.

### 1.0.1 — 2026-07-01

New Analyze experience
- All channels combined into one interactive graph with per-line toggles
- Zoom, pan, and scroll back through recorded data
- Tap the graph to read every value at any point in time
- Added Speed, MAP, Engine Temp, Battery Voltage, and AFR

Drag timing
- Measure 0-60 ft, 0-100 km/h, 201 m, 402 m, and trap speed

Dashboard
- New AFR gauge, now selectable in the gauge slots
- Display up to 5 configurable gauges at once

Reliability
- Connection is now verified before opening data screens and before recording
- Clearer, easier-to-read notifications
- Various bug fixes and performance improvements

### 1.0 — 2026-06-18

No release notes.

## More apps by Suthipoj tripuwabhrut

- [Thunder](https://appshunter.io/ios/app/thunder/id1445632801)
- [Super Storm - Alphatech](https://appshunter.io/ios/app/super-storm-alphatech/id1475341953)
- [Icon - Datatec](https://appshunter.io/ios/app/icon-datatec/id1475461987)
- [Raptor-DATATECH](https://appshunter.io/ios/app/raptor-datatech/id1489149504)
- [UNT Racing](https://appshunter.io/ios/app/unt-racing/id1489279243)
- [Super Vanz - DataTec](https://appshunter.io/ios/app/super-vanz-datatec/id1508663694)

All apps by Suthipoj tripuwabhrut: https://appshunter.io/developer/1445632800

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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 2026-07-17.*