# E vs Aces Connect

The clearest difference is review sentiment: Aces Connect at 100% against E's 46%. Aces Connect also leads on rating (5.0 vs 3.9) and update cadence (every 2 months vs every 4 months). E's advantage is ratings volume (24 vs 4). On price, ads, in-app purchases and monetization model there is nothing between them.

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 3.9. That said, the two scores are not equally well evidenced: E has 24 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 46% of E's written reviews are positive against 100% of Aces Connect's.

E ships an update every 4 months, Aces Connect every 2 months. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | E | Aces Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (24 ratings)](https://appshunter.io/ios/app/e-tuner-4/id1579096205/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/aces-connect/id6749562285/reviews)** |
| Number of ratings | **24** | 4 |
| Positive reviews | 46.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 51 MB | 45 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Edelbrock Corp](https://appshunter.io/developer/1579096297) | [ACES FUEL INJECTION INC](https://appshunter.io/developer/1831183190) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-tuner-4/id1579096205)

This app connects wirelessly to an EFI system, allowing users to monitor engine data and adjust various settings like air-fuel ratios and ignition timing. It offers a setup wizard for initial calibration and advanced tuning options for performance optimization.

**Highlights:** Bluetooth ECU communication, Live tuning of ECU settings, Real-time engine and sensor data monitoring, Setup Wizard for base calibration, Advanced tuning functions, Diagnostic troubleshooting page, Vivid gauge displays

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Aces Connect

[App page](https://appshunter.io/ios/app/aces-connect/id6749562285)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is E free?

E 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, E or Aces Connect?

Aces Connect is rated higher. E averages 3.9 out of 5 from 24 ratings, while Aces Connect averages 5.0 from 4 ratings.

### Do E or Aces Connect have ads?

Neither E nor Aces Connect shows ads.

### Which is updated more often, E or Aces Connect?

E ships an update every 4 months, and Aces Connect every 2 months. Most recently, E was updated on October 24, 2026 and Aces Connect on October 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*