# Amp’d 2.0 vs E

The clearest difference is rating: Amp’d 2.0 at 5.0 against E's 3.9. Amp’d 2.0 also leads on iOS requirement (12.2 vs 16.0). E's advantage is update cadence (every 5 months vs every 12 months) and ratings volume (24 vs 5). 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.

Amp’d 2.0 holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 5 and 24 respectively.

Amp’d 2.0 ships an update every 12 months, E every 5 months. The most recent releases landed on September 23, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Amp’d 2.0 | E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/ampd-20/id1509089120/reviews)** | [3.9 (24 ratings)](https://appshunter.io/ios/app/e-tuner-4/id1579096205/reviews) |
| Number of ratings | 5 | **24** |
| Positive reviews | — | 46.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 82 MB | 51 MB |
| Requires iOS | **12.2** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Holley Performance Products](https://appshunter.io/developer/1175069390) | [Edelbrock Corp](https://appshunter.io/developer/1579096297) |

## What reviewers say

### Amp’d 2.0

[App page](https://appshunter.io/ios/app/ampd-20/id1509089120)

Instantly adjust your vehicle's throttle response wirelessly. This advanced device and app combination eliminates delays, giving you full control over how your car drives. Customize or select from pre-set throttle curves for an enhanced driving experience.

**Highlights:** Wireless Bluetooth control, Eliminates throttle response delays, 5 preset throttle curves, Thousands of custom curve possibilities, Intuitive guides and tutorials, Bluetooth pairing

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Amp’d 2.0 free?

Amp’d 2.0 is free to download, with no in-app purchases.

### Is E free?

E is free to download, with no in-app purchases.

### Which has better reviews, Amp’d 2.0 or E?

Amp’d 2.0 is rated higher. Amp’d 2.0 averages 5.0 out of 5 from 5 ratings, while E averages 3.9 from 24 ratings.

### Do Amp’d 2.0 or E have ads?

Neither Amp’d 2.0 nor E shows ads.

### Which is updated more often, Amp’d 2.0 or E?

Amp’d 2.0 ships an update every 12 months, and E every 5 months. Most recently, Amp’d 2.0 was updated on September 23, 2026 and E on September 29, 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.*