# KTuner FlexFuel vs Trofii Racing

The clearest difference is in-app purchases: KTuner FlexFuel at none against Trofii Racing's 10. KTuner FlexFuel also leads on update cadence (daily vs every 2 days) and iOS requirement (11.0 vs 15.1). Trofii Racing's advantage is ratings volume (53 vs 1). On price, rating, ads and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for KTuner FlexFuel against 5.0 for Trofii Racing. That said, the two scores are not equally well evidenced: Trofii Racing has 53 ratings behind it against 1, so its average is the more settled of the two.

KTuner FlexFuel ships an update daily, Trofii Racing every 2 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | KTuner FlexFuel | Trofii Racing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/ktuner-flexfuel/id6447161311/reviews) | [5.0 (53 ratings)](https://appshunter.io/ios/app/trofii-racing/id6759013102/reviews) |
| Number of ratings | 1 | **53** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 days |
| Monetization | **Free** | Freemium |
| Size | 41 MB | 111 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Peter Linszter](https://appshunter.io/developer/530077583) | [Trofii LLC](https://appshunter.io/developer/1896306491) |

## What reviewers say

### KTuner FlexFuel

[App page](https://appshunter.io/ios/app/ktuner-flexfuel/id6447161311)

This utility app connects to specific hardware units via Bluetooth to display real-time ethanol content and temperature. It provides essential data for users monitoring fuel mixtures.

**Highlights:** Bluetooth BLE connectivity, Real-time ethanol content display, Real-time temperature display, Supports KTuner FlexFuel units

**Features:** macOS Compatibility

**In-app purchases:** none


### Trofii Racing

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

This app connects drag racing enthusiasts to compete remotely, track performance with GPS devices, and share their progress. Build your virtual garage, compare your vehicle's stats globally, and access essential racing calculators.

**Highlights:** Remote racing challenges, GPS-powered performance timing, Social racing feed, Global leaderboards, Vehicle garage and specs, Built-in racing calculators

**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 KTuner FlexFuel free?

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

### Is Trofii Racing free?

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

### Which has better reviews, KTuner FlexFuel or Trofii Racing?

KTuner FlexFuel and Trofii Racing are both rated 5.0 out of 5 on the App Store, from 1 and 53 ratings respectively.

### Do KTuner FlexFuel or Trofii Racing have ads?

Neither KTuner FlexFuel nor Trofii Racing shows ads.

### Which is updated more often, KTuner FlexFuel or Trofii Racing?

KTuner FlexFuel ships an update daily, and Trofii Racing every 2 days. Most recently, KTuner FlexFuel was updated on November 3, 2026 and Trofii Racing on November 5, 2026.

---

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