QuickTune H4 4+

Horizon 4 Tuning Calculator

Markus Hein

Designed for iPhone

    • 4.6 • 98 Ratings
    • $4.99

iPhone Screenshots


The power of QuickTune is now available for Forza Horizon for the first time!

QuickTune H4 - the successor of the highly acclaimed QuickTune 7 Tuning Calculator for Forza 7 - is now available with full support for Forza Horizon 4!


+ Calculates ready-made balanced and competitive tunes, no tweaking necessary!
+ Supports any car in Forza Horizon 4 with any drivetrain swap
+ Create standard, dirt, cross country, drift and drag tunes
+ Choose between general purpose or track and season specific tunes
+ Supports night, rain, fog and snow tuning
+ Advanced settings for adjustment of tune balance and stiffness
+ Supports imperial and metric units
+ "Favorites" features allows you to save and keep track of your favorite tunes
+ Automatically keeps track of 100 most recent tuned cars
+ Includes aero and transmission tuning


Simply provide following car data:
- manufacturer & car model
- power
- weight & weight distribution
- drivetrain
- suspension (springs and dampers)
- chassis reinforcement
- transmission
- tire compound
- tire width (front and rear)
- installed aero kits

Then choose the kind of tune and whether it should be a general purpose tune suited for multiplayer lobby racing or track and season specific tune ideally suited for rival races.

Further tuning options allow for custom tuning of tire pressure, anti-roll bars, springs and dampers, ride height, brake balance, differential, gearing and aerodynamic downforce.

Based on the provided data a tune is calculated for the car according to the selected tune type.

Advanced tune settings allow you further adjust tune balance and the stiffness.

What’s New

Version 59.0.2

I'm happy to announce that QuickTune H5 for iOS is now available with full support for Forza Horizon 5!

Ratings and Reviews

4.6 out of 5
98 Ratings

98 Ratings

Zearo ,

What an awesome app!

A little late to the party but H4 is cheap on sale nowadays! I’m not a car guy at all, I barely even play racing games, but after reading online about how tuning can actually significantly affect the quality of your driving experience I felt that I was missing out on some cars by disliking their handling when it was likely fixable through tuning that I didn’t understand.

Actually found this app through the developer’s very thorough and knowledgeable guide on Horizon 4 tuning, but after a few pages my head began to spin and I tapped out to use this tuning app instead, and it’s brilliant! I feel like I’m cheating, but after using this to tune my Baja Bug for snow rally, there is a noticeable improvement in the quality of the handling and I couldn’t be more excited to tune my other cars! Lots of options and your tune is likely only as good as your accuracy at selecting the settings for what you desire.

And any true beginners like me don’t be a dolt and fail to notice that the horsepower and other settings are text entry, they’re not just telling you your horsepower and weight etc., you need to type those details in to get a correct tuning! Definitely worth five bucks, especially seeing how much work went into the tuning guide on the dev’s website, thank you for your hard work!

Developer Response ,

Thanks a lot for your thorough review, this is much appreciated!

ChadNicholson ,

Fantastic App for Quick Tuning

I’ve used this app for a long time now and finally decided to leave a review as the new version for FH5 has been released. I appreciated how quickly new cars were added into the app as they were released into the game as well. I’m looking forward to using the new version for FH5!

Developer Response ,

Thank you!

joe peat ,

Honestly sometimes can’t decide if I like the app.

There’s been a couple of cars that I’ve used this app for a starting point to get me started with a tune and loved the end results. But then there’s some instances where I really have to scratch my head over what I get outta using it. Idk what I could be doing wrong but there’s been times where I can’t even drive the cars it’ll be so bad. I don’t do anything different so maybe the developers could give me some pointers. I kinda wish there was suggested parts upgrade list just so I can compare and see if maybe it’s because I didn’t get a critical upgrade or something that could be the culprit for some of the head scratching results. I don’t think I’ve tuned a car with the app that didn’t have ridiculous understeer issues which would be my biggest complaint bcuz there’s more than one way to get rid of understeer and for me it takes quite a bit of testing and what not which at the end of the day doesn’t seem worth the money I’ve paid.

Developer Response ,

Please contact me at fb@fiftyinch.com and I can help you out with specific cars as I need more details.

App Privacy

The developer, Markus Hein, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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