# FCC Rally vs Modpro AI

FCC Rally and Modpro AI are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

FCC Rally ships an update every 6 days, Modpro AI weekly. The most recent releases landed on September 21, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | FCC Rally | Modpro AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (130 ratings)](https://appshunter.io/ios/app/modpro-ai/id6755011876/reviews)** |
| Number of ratings | — | **130** |
| Positive reviews | — | 94.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | — | Free |
| Size | 23 MB | 93 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [RMTekSystem LLC](https://appshunter.io/developer/1662188513) | [ModPro AI INC](https://appshunter.io/developer/1851335653) |

## What reviewers say

### FCC Rally

[App page](https://appshunter.io/ios/app/fcc-rally/id6747009928)

**Features:** macOS Compatibility

**In-app purchases:** none


### Modpro AI

[App page](https://appshunter.io/ios/app/modpro-ai/id6755011876)

This app serves as a central hub for automotive and motorcycle enthusiasts to track, organize, and optimize their custom builds. It offers professional build tracking, AI-powered recommendations, performance management, and a community forum for inspiration and connection.

**Highlights:** Professional build tracking, AI build advisor, Performance & spec management, Community garage, Part logging and management

**In-app purchases:** none


## Frequently asked questions

### Is FCC Rally free?

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

### Is Modpro AI free?

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

### Do FCC Rally or Modpro AI have ads?

Neither FCC Rally nor Modpro AI shows ads.

### Which is updated more often, FCC Rally or Modpro AI?

FCC Rally ships an update every 6 days, and Modpro AI weekly. Most recently, FCC Rally was updated on September 21, 2026 and Modpro AI on October 21, 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.*