# Rev Advisor vs ECU Map Switcher by D

The clearest difference is in-app purchases: ECU Map Switcher by D at none against Rev Advisor's 2. Rev Advisor's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Rev Advisor sells 2 in-app purchases, starting at $4.99 per month. ECU Map Switcher by D asks for nothing beyond the download.

## The numbers

| Metric | Rev Advisor | ECU Map Switcher by D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rev-advisor-car-mod-planner/id6759537724/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 days | — |
| Monetization | Freemium | — |
| Size | 97 MB | 1 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jeremy Sellers](https://appshunter.io/developer/1866238459) | [LUN LIU](https://appshunter.io/developer/1890125123) |

## What reviewers say

### Rev Advisor

[App page](https://appshunter.io/ios/app/rev-advisor-car-mod-planner/id6759537724)

This app generates custom car performance build plans using AI, detailing aftermarket parts, estimated horsepower gains, and pricing. It provides direct links to purchase parts and offers a virtual dyno studio to visualize performance improvements before modifications.

**Highlights:** AI-generated custom build plans, Platform-specific part recommendations, Realistic horsepower gain estimates, Direct part purchasing links, Virtual dyno studio with simulations, Shareable build summary cards

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rev Advisor Pro | $4.99 | per month |
| Rev Advisor Elite | $14.99 | per month |


### ECU Map Switcher by D

[App page](https://appshunter.io/ios/app/ecu-map-switcher-by-d-sync/id6761521552)

**In-app purchases:** none


## Frequently asked questions

### Is Rev Advisor free?

Rev Advisor is free to download, with in-app purchases available.

### Is ECU Map Switcher by D free?

ECU Map Switcher by D is free to download, with no in-app purchases.

### Do Rev Advisor or ECU Map Switcher by D have ads?

Neither Rev Advisor nor ECU Map Switcher by D shows ads.

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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.*