# E vs Switch

E and Switch both sit at 4.0 stars, but that hides the real split: 64% of Switch's written reviews are positive against 45% of E's. Switch also leads on iOS requirement (11.0 vs 16.0). On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.0 for E against 3.9 for Switch. Both are backed by a comparable volume of ratings — 22 and 22 respectively. Written reviews are what separate them: 45% of E's written reviews are positive against 64% of Switch's.

E ships an update every 8 months, Switch every 12 months. The most recent releases landed on August 29, 2026 and July 8, 2026 respectively.

## The numbers

| Metric | E | Switch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (22 ratings)](https://appshunter.io/ios/app/e-tuner-4/id1579096205/reviews)** | [3.9 (22 ratings)](https://appshunter.io/ios/app/switch-pros/id1658883630/reviews) |
| Number of ratings | 22 | 22 |
| Positive reviews | 45.5% of reviews | **63.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 12 months |
| Monetization | Free | Free |
| Size | 50 MB | 32 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Edelbrock Corp](https://appshunter.io/developer/1579096297) | [Off Road Engineering LLC](https://appshunter.io/developer/1658883632) |

## 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

**In-app purchases:** none


### Switch

[App page](https://appshunter.io/ios/app/switch-pros/id1658883630)

Control and program your Switch Panel Power Systems remotely via Bluetooth. Manage your SP8100, SP9100, and RCR-Force®12 systems directly from your connected device.

**Highlights:** Bluetooth connectivity, Program switch panel systems, Operate switch panel systems, Compatible with SP8100, SP9100, RCR-Force®12, Remote device control

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E free?

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

### Is Switch free?

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

### Which has better reviews, E or Switch?

E is rated higher. E averages 4.0 out of 5 from 22 ratings, while Switch averages 3.9 from 22 ratings.

### Do E or Switch have ads?

Neither E nor Switch shows ads.

### Which is updated more often, E or Switch?

E ships an update every 8 months, and Switch every 12 months. Most recently, E was updated on August 29, 2026 and Switch on July 8, 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.*