Comparison

KTuner FlexFuel vs Trofii Racing

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

KTuner FlexFuel

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
Read full description

The app connects to the KTuner FlexFuel units using Bluetooth BLE and displays realtime ethanol content and temperature.

About

Trofii Racing

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
Read full description

Trofii Racing is the social drag racing app built for every driver. From weekend warriors to serious competitors. Whether you're chasing your personal best or going head-to-head with racers around the world, Trofii gives you the tools to race, share, and compete. Remote Callouts: Challenge anyone, anywhere. Challenge racers across the country or around the world. Both run at your own location, times sync and compare. Settle the score without being in the same place. GPS-Powered Timing: Connect your Dragy or compatible GPS device for precision 0-60, 1/8 mile, and 1/4 mile timing. Get accurate, consistent data every single run. Social Racing Feed: Share your runs, times, and see what the community is running. Follow your favorite drivers all in a feed built around the racing lifestyle. Leaderboards & Competitions: Compete in global and class based leaderboards. See how your vehicle stacks up against builds all over the globe. Vehicle Garage: Build out your garage with your vehicles, mods, and specs. Your profile tells the story of your build… every upgrade, every run, every trophy. Built-In Racing Tools: Density altitude calculator, horsepower estimator, 1/4 mile ET predictor, E85 station finder and more… everything a serious racer needs, built right in. Built for the Community: Trofii Racing isn't just a timing app it's where automotive enthusiasts live. Connect with drivers who share your passion, find local competition, and track your progress as you push your build further. Download Trofi Racing and start earning your trophies. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

KTuner FlexFuel2 screens
Trofii Racing4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
KTuner FlexFuel versus Trofii Racing: the parameters behind the verdict, then further details
ParameterKTuner FlexFuelTrofii Racing
PriceFreeFree
Rating5.0 (1 ratings)5.0 (53 ratings)
Positive reviews—100.0% of reviews
Number of ratings153 — better
Update frequencyDaily — betterEvery 2 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS11.0 — better15.1
Further details — not scored
Size41 MB111 MB
Age rating4+12+
DeveloperPeter LinszterTrofii LLC

Customer experience

KTuner FlexFuel

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Trofii Racing

All ratings53 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews22 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

KTuner FlexFuel

No in-app purchases

10 purchases

Trofii Racing

Subscriptions4
  • Trofii Premium7 Days trial$6.991 Month
  • Trofii Premium7 Days trial$7.991 Month
  • Trofii Premium7 Days trial$49.991 Year
Show 1 more
  • Trofii Premium7 Days trial$59.991 Year
One-time6
  • Density Altitude$0.99
  • Can I Take 'Em?$0.99
  • 1/4 Mile ET$0.99
Show 3 more
  • 60-130 MPH$0.99
  • Roll Race Predictor$0.99
  • All Calculators Pack$14.99

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.

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