eFlexApp vs Aces Connect
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eFlexApp
Monitor your eFlexFuel device in real-time, with features varying by device version. Adjust settings like language, temperature units, and theme. Track ethanol content, engine temperature, and more, depending on your specific eFlexFuel model.
- Real-time device monitoring
- Adjustable settings (language, temp, theme)
- Ethanol content tracking
- Engine temperature monitoring
- Device status checks
- Bluetooth connectivity
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With eFlexApp you can monitor your eFlexFuel device in real time. eFlexApp recognizes your eFlexFuel device version and offers different features with each product. The app also enables adjusting of eFlexPlus and eFlexPro devices. Change language (English, French, Finnish), temperature unit (°F/°C) and theme (light/dark). eFlexEco, eFlexBlue and eFlexFuel MONITOR: ethanol content, duty cycle, fuel temperature, ambient engine temperature, injector activity & cold enrichment, (engine RPM in eFlexEco Firmware 11.0+) CHECK: device status eFlexPlus Direct, eFlexBlue Direct MONITOR: ethanol content, engine RPM, duty cycle, fuel temperature, ambient engine temperature, injector activity & cold enrichment CHECK: device status eFlexPlus and eFlexMoto Plus MONITOR: ethanol content, engine RPM, duty cycle, fuel temperature, ambient engine temperature, injector activity & cold enrichment ADJUST: RPM based enrichment with driving mode selection (save a custom driving mode setting created with eFlexTuner software) & cold enrichment (save a custom setting created with eFlexTuner software) CHECK: device status, startup information eFlexPro and eFlexMoto Pro MONITOR: ethanol content, engine RPM, duty cycle, fuel temperature, ambient engine temperature, injector activity & cold enrichment ADJUST: RPM based enrichment with driving mode selection (save up to three custom driving mode settings created with eFlexTuner software) & cold enrichment (save a custom setting created with eFlexTuner software) CHECK: device status, startup information eFlexApp communicates with your eFlexFuel device via Bluetooth. Permission to use Bluetooth is required. Please contact support@eflexfuel.com if you have any feedback! Developed by StepOne Tech Ltd
Aces Connect
Wirelessly control your engine's EFI system with real-time data monitoring and instant adjustments. Tune your engine on the fly and review detailed performance logs through an intuitive interface.
- Wireless Bluetooth connection
- Real-time engine data monitoring
- Instant tuning adjustments
- Performance data logging
- Customizable dashboards
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The Aces Connect App gives you complete wireless control over your Aces EFI system through the Aces Bluetooth module. Whether you’re fine-tuning at the track, monitoring live engine data, or reviewing detailed logs, the app provides everything you need in a sleek, easy-to-use interface. Key Features: Wireless Connection: Pair your ACES EFI system with your iOS device via Bluetooth — no wired connection required. Real-Time Monitoring: View live engine parameters with customizable dashboards. Instant Adjustments: Make tuning changes on the fly for peak performance. Data Logging: Record, save, and review logs for performance analysis. Whether you’re a performance enthusiast or professional tuner, the ACES Mobile Tuning App puts ultimate EFI control right in your hands.
Screenshots
Verdict
The clearest difference is review sentiment: Aces Connect at 100% against eFlexApp's 33%. Aces Connect also leads on rating (5.0 vs 3.4) and iOS requirement (13.0 vs 15.6). On price, ratings volume, update cadence and ads 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.
Aces Connect holds the better App Store score, 5.0 against 3.4. Both are backed by a comparable volume of ratings — 8 and 4 respectively. Written reviews point the same way: 33% of eFlexApp's written reviews are positive against 100% of Aces Connect's.
eFlexApp ships an update monthly, Aces Connect every 2 months. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.
| Parameter | eFlexApp | Aces Connect |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (8 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 33.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 8 — better | 4 |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 58 MB | 45 MB |
| Age rating | 4+ | 17+ |
| Developer | StepOne Tech Ltd | ACES FUEL INJECTION INC |
Customer experience
eFlexApp
Aces Connect
In-app purchases
eFlexApp
No in-app purchases
Aces Connect
No in-app purchases
Questions
Is eFlexApp free?
Is Aces Connect free?
Which has better reviews, eFlexApp or Aces Connect?
Do eFlexApp or Aces Connect have ads?
Which is updated more often, eFlexApp or Aces Connect?
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