Holley Terminator X vs Aces Connect
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Holley Terminator X
Unlock advanced vehicle tuning control with this app. Fine-tune over 250 engine parameters for maximum performance using a mobile-friendly interface. Monitor vital engine data, create custom tunes, and share tuning files effortlessly.
- 250+ customizable engine parameters
- Real-time engine data monitoring
- Intuitive setup wizard for base tunes
- Create, manage, and share tuning files
- Record and share datalogs
- Step-by-step TPS setup
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UNLOCK THE NEXT LEVEL OF TUNING CONTROL FOR YOUR VEHICLE with the Holley Terminator X EFI mobile app — the ultimate companion for performance tuning right from your iPhone or iPad. Take control of your engine’s performance with 250+ CUSTOMIZABLE PARAMETERS FOR PRECISE TUNING. Designed for enthusiasts and professionals alike, the Holley Terminator X EFI app lets you FINE TUNE ENGINE PARAMETERS FOR MAXIMUM PERFORMANCE — all from the convenience of your mobile device. Key Features: · Six pre-defined real-time monitoring screens for instant access to vital engine data · Intuitive setup wizard helps you easily create a powerful base tune in minutes · View real-time gauges on screen at a glance – no laptop required · Effortlessly create, manage, and share your tuning files with others · Record and share datalogs to review your performance anytime, anywhere · Simple, step-by-step Throttle Position Sensor (TPS) setup for accurate control Built specifically for use with Holley’s Terminator X EFI systems, this app gives you advanced tuning capabilities in a streamlined, mobile-friendly interface. Perfect for racers, tuners, and performance enthusiasts — take your tuning to the next level and keep your engine dialed in with Holley. App Requires the Holley Bluetooth Module to connect to the Terminator X ECU.
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 rating: Aces Connect at 5.0 against Holley Terminator X's 4.4. Aces Connect also leads on iOS requirement (13.0 vs 15.0). On price, review sentiment, ratings volume and update cadence 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 4.4. Both are backed by a comparable volume of ratings — 5 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 30, 2026.
| Parameter | Holley Terminator X | Aces Connect |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (5 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 5 — better | 4 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 227 MB | 45 MB |
| Age rating | 4+ | 17+ |
| Developer | Holley Performance Products | ACES FUEL INJECTION INC |
Customer experience
Holley Terminator X
Aces Connect
In-app purchases
Holley Terminator X
No in-app purchases
Aces Connect
No in-app purchases
Questions
Is Holley Terminator X free?
Is Aces Connect free?
Which has better reviews, Holley Terminator X or Aces Connect?
Do Holley Terminator X or Aces Connect have ads?
Which is updated more often, Holley Terminator X or Aces Connect?
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