THX tune-up‪™‬ 4+

THX Ltd.

Designed for iPad

    • 3.6 • 137 Ratings
    • Free



THX tune-up (TM) allows you to properly adjust your TV, projector and speakers, helping you get the most out of your entertainment system.
NOTE: Before you download and get started, please read the "Additional Requirements" & "Connection to TV/AVR" sections below to ensure enjoyment and proper use. For a video preview of the THX tune-up app, check out the THX YouTube at
Additional Requirements
• Supported iOS devices: iPhone 4, 4S, 5; iPad, 2, 3, 4 & Mini; iPod Touch 4 & 5; iOS 7.1 or later
• If using Apple TV, must be 3rd gen version or later
• iPhone 4 & iPod Touch 4 are not supported by Apple TV; must use AV adapter & HDMI cable connection to TV or AVR for picture adjustment (720p only)
• For 5.1 audio tests, iOS device must be directly connected to AVR with adapter & HDMI cable (5.1 audio tests are not supported on Apple TV)
• App is optimized for iOS 7.1 or later for 4S & 5, iPad 2, 3, 4 & Mini, & iPod Touch 5 with an HDMI adapter & cable directly connected to TV or AVR 

Connection to TV/AVR
• HDMI cable at least 2 meters (6 ft) & Cat 2-certified
• 30-pin Apple Digital AV Adapter for iPad 2 & 3, iPhone 4 & 4S, & iPod Touch 4
• Lightning Digital AV Adapter for iPhone 5, iPad 4 & Mini, & iPod Touch 5
• Apple TV (3 gen) for picture adjustments is compatible with iPhone 4S & 5, iPad 2, 3, 4 & Mini, & iPod Touch 5
• Connect iOS device via Airplay to your Apple TV (3rd gen) & turn Mirroring ON

THX tune-up features custom video test patterns, carefully selected photos and tutorials to help adjust and confirm the best picture settings on your display based on room lighting. Using special audio tests, THX tune-up also lets you check external speakers to make sure they are working in phase and are connected properly for 2-channel stereo or 5.1 sound systems. 
THX tune-up is completely interactive — go through it at your own pace, in any order. Connect a supported iOS device to the display or sound system with an HDMI adapter & cable, or via AirPlay with Apple TV (3rd gen).
Locate the adjustment buttons on your TV and AVR remote controls and then follow the THX app tutorials which walk you through your “THX tune-up.” The app offers tips about your remote control, room lighting, viewing distance and other helpful advice. 
Video adjustments
• Aspect ratio – ensure your TV displays shapes & sizes correctly
• Brightness – make certain shadow details & night scenes are clearly visible
• Contrast – confirm white detail is distinct on your television
• Color – make sure colors are bright & vibrant but not cartoonish
• Tint – check skin tones look natural & are not too green or red
THX tune-up uses your iOS device’s camera to set color and tint with a special built in color filter. Point the device camera at the TV screen and see if the color or tint is adjusted correctly.
Audio adjustments
• Speaker assignment – ensure speakers are connected to the correct AVR output & intended sound is coming from the correct speaker
• Speaker phase – confirm that positive & negative speaker wires are connected correctly and all speakers are in phase
• Turn “moo can” on & tilt your device to hear it “moo”
• Play extraordinary THX trailers (just like in THX Certified cinemas) to show off your newly tuned TV & sound system to friends and family
• Show off your audio system by playing “THX Deep Note” in 5.1 surround sound, just like in the theater
• Have a question for THX or just want to provide feedback? Ask Tex!

This app is not a professional calibration tool and is not intended to replace an in-home professional calibration.

What’s New

Version 1.3.1

This app has been updated by Apple to display the Apple Watch app icon.

Fixed issue with iPhone 7 crash.

Ratings and Reviews

3.6 out of 5
137 Ratings

137 Ratings

wkrasl ,


I have a new LG Nano90 with horrible presets for half the picture modes, especially “Cinema, “HDR,”” and “Filmmaker” which were way too dark and whites appearing pink-tan compared to a sheet of white paper held against the screen.

I thought this app was great at first, starting with calibrating the “Standard”mode first that changed to Bright 70, Contrast 70, and Color 62. No change needed for Aspect or Tint 0. But that’s all this app did, with no process for Backlight, Sharpness, etc.

Working the missing process for those on my own, I ended up with Backlight 70, Sharpness 30, and Warmth either C20 or Cool. But there were still too many other obscure settings that still left unacceptable picture quality variations between many of the modes, especially Cinema, HDR, and Filmmaker.

Bottom line, I gave up and reset *every* picture mode back to presets, and settled for most effective overall improvement across *all* modes just by changing warmth to C20 or Cool, which left me with acceptable variations I could live with depending on whether watching CNN, NFL, or a movie. Period.

Now I need to start over with some other product.

Noir Amnesiac ,

Very very nice!

When I got this I wasn't expecting much but I was very pleasantly surprised! It has several basic tools 14 your TV but they are very good and I really couldn't ask for more especially for a free app. The total for adjusting color and tiny is really cool and I've never seen on before. Basically point your camera at the TV and is the app broadcasts an Image to the screen the app tells you verbally how to adjust your color settings until it appears correctly on your phone's screen. The audio walk-through is a very nice touch and is informative but still simple. The only flaw with this app, which probably isn't it's fault, is that it can only do audio tests through stereo speakers as the Apple TV can't play surround sound through airplay. I'm still giving it five stars because it's not the apps fault.

captap202 ,

Good when it works

Apparently THX has forgotten about this app. I’ve used it several times with good results, but on my new tv it seems to have become somewhat buggy. More often than not it opens then immediately closes, or won’t open at all.
Finally got it to work today with a lightning to hdmi cable. Never could get it to work with screen mirroring. Doesn’t appreciate it has been updated in a long time.

App Privacy

The developer, THX Ltd., has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.

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