Tech2 vs ESR ProMax
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Tech2
This utility app offers real-time tuning and configuration for various operational modes. It provides advanced customization options for ignition timing, fuel, and compensation, along with anti-theft protection and analysis features.
- Real-time tuning
- Anti-theft protection
- Multiple operation modes
- Injector tuning
- Ignition timing tuning
- BARO compensation
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Application Functions Configuration: * Easy installation * Real-time tuning Security: * Anti-theft protection Operation Modes: * 3 modes Customization: * Calibration * Injector tuning * Ignition timing tuning * Compensation tuning Analysis: * Analysis Additional Tuning: * TPS enrichment tuning * Fuel start tuning Compensation: * BARO compensation
ESR ProMax
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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 โข 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 โ all on a single screen. โข 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. โข ECU Configuration Configure compensation tables, cold-start fuel, idle settings, motor sport mode, and more โ all from your device. โข Save & Load Profiles Save multiple tune profiles locally and switch between setups instantly. Perfect for track days vs. street riding. โข 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.
Screenshots
Verdict
The clearest difference is update cadence: ESR ProMax at fortnightly against Tech2's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Tech2 ships an update every 3 months, ESR ProMax fortnightly. The most recent releases landed on October 16, 2026 and October 6, 2026 respectively.
| Parameter | Tech2 | ESR ProMax |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | โ |
| Update frequency | Every 3 months | Fortnightly โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | โ |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 14.0 โ better | 15.0 |
| Further details โ not scored | ||
| Size | 52 MB | 65 MB |
| Age rating | 17+ | 4+ |
| Developer | ECU=SHOP | Suthipoj tripuwabhrut |
In-app purchases
Tech2
No in-app purchases
ESR ProMax
No in-app purchases








