# Diagnostic App vs Trofii Racing

The clearest difference is in-app purchases: Diagnostic App at none against Trofii Racing's 10. Trofii Racing's advantage is update cadence (every 3 days vs every 7 months) and chart position (#208 vs unranked). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Trofii Racing sells 10 in-app purchases, starting at $6.99 per month. Diagnostic App asks for nothing beyond the download.

Diagnostic App ships an update every 7 months, Trofii Racing every 3 days. The most recent releases landed on November 8, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Diagnostic App | Trofii Racing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (56 ratings)](https://appshunter.io/ios/app/trofii-racing/id6759013102/reviews)** |
| Number of ratings | — | **56** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 days** |
| Monetization | — | Freemium |
| Best chart rank | — | **#208** |
| Size | 60 MB | 111 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Tesmec S.p.a.](https://appshunter.io/developer/1780977610) | [Trofii LLC](https://appshunter.io/developer/1896306491) |

## What reviewers say

### Diagnostic App

[App page](https://appshunter.io/ios/app/diagnostic-app/id6738472668)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Trofii Racing

[App page](https://appshunter.io/ios/app/trofii-racing/id6759013102)

**Currently charting:** #208 Top Free · Sports (US App Store)

This app is a community for car enthusiasts to time their runs, follow live track events, and compete with friends. It offers a fantasy team game and virtual joyrides, with an optional Pro subscription for advanced analytics and partner discounts.

**Highlights:** Time 60 foot, eighth mile, quarter mile, and 0-60 runs, Follow live track events and view timeslips, Participate in a free fantasy team racing game, Experience virtual quarter-mile joyrides, Connect with car groups and events, Race friends remotely, Advanced analytics with Trofii Pro subscription

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trofii Premium | $6.99 | per month |
| Trofii Premium | $7.99 | per month |
| Trofii Premium | $49.99 | per year |
| Trofii Premium | $59.99 | per year |
| Density Altitude | $0.99 | one-time |
| Can I Take 'Em? | $0.99 | one-time |
| 1/4 Mile ET | $0.99 | one-time |
| 60-130 MPH | $0.99 | one-time |
| Roll Race Predictor | $0.99 | one-time |
| All Calculators Pack | $14.99 | one-time |


## Frequently asked questions

### Is Diagnostic App free?

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

### Is Trofii Racing free?

Trofii Racing is free to download, with in-app purchases available.

### Do Diagnostic App or Trofii Racing have ads?

Neither Diagnostic App nor Trofii Racing shows ads.

### Which is updated more often, Diagnostic App or Trofii Racing?

Diagnostic App ships an update every 7 months, and Trofii Racing every 3 days. Most recently, Diagnostic App was updated on November 8, 2026 and Trofii Racing on November 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*