Comparison

Holley Terminator X vs Aces Connect

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Read full description

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.

About

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.

Highlights
  • Wireless Bluetooth connection
  • Real-time engine data monitoring
  • Instant tuning adjustments
  • Performance data logging
  • Customizable dashboards
Features
Read full description

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

Holley Terminator X4 screens
Aces Connect4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 30, 2026.

Scorecard2 real differences · 8 level
Holley Terminator X versus Aces Connect: the parameters behind the verdict, then further details
ParameterHolley Terminator XAces Connect
PriceFreeFree
Rating4.4 (5 ratings)5.0 (4 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings5 — better4
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size227 MB45 MB
Age rating4+17+
DeveloperHolley Performance ProductsACES FUEL INJECTION INC

Customer experience

Holley Terminator X

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Aces Connect

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Holley Terminator X

No in-app purchases

None

Aces Connect

No in-app purchases

Questions

Is Holley Terminator X free?
Holley Terminator X is free to download, with no in-app purchases.
Is Aces Connect free?
Aces Connect is free to download, with no in-app purchases.
Which has better reviews, Holley Terminator X or Aces Connect?
Aces Connect is rated higher. Holley Terminator X averages 4.4 out of 5 from 5 ratings, while Aces Connect averages 5.0 from 4 ratings.
Do Holley Terminator X or Aces Connect have ads?
Neither Holley Terminator X nor Aces Connect shows ads.
Which is updated more often, Holley Terminator X or Aces Connect?
Holley Terminator X ships an update every 2 months, and Aces Connect every 2 months. Most recently, Holley Terminator X was updated on October 30, 2026 and Aces Connect on October 30, 2026.

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