# Rev Advisor vs D

The clearest difference is in-app purchases: D at none against Rev Advisor's 2. On price, update cadence, 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. D asks for nothing beyond the download.

Rev Advisor ships an update every 6 days, D every 5 days. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Rev Advisor | 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 | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 97 MB | 33 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| 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 |


### D

[App page](https://appshunter.io/ios/app/d-sync-ecu/id6761677479)

**In-app purchases:** none


## Frequently asked questions

### Is Rev Advisor free?

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

### Is D free?

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

### Do Rev Advisor or D have ads?

Neither Rev Advisor nor D shows ads.

### Which is updated more often, Rev Advisor or D?

Rev Advisor ships an update every 6 days, and D every 5 days. Most recently, Rev Advisor was updated on October 8, 2026 and D on October 24, 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.*