# THX tune-up™ > Home theater calibration tool for TVs, projectors, and speakers. (iPhone/iPad app by THX Ltd..) - Source: https://appshunter.io/ios/app/thx-tune-up/id592624594 (this page in markdown: same URL + `.md`) - Developer: [THX Ltd.](https://appshunter.io/developer/592624597) - Category: Utilities, Entertainment - Price: Free - Rating: 3.70/5 from 142 App Store ratings · 262 written reviews indexed - Age rating: 4+ - Requires: iOS 8.0 · 138 MB - Languages: American English - Released: 2013-01-29 - Data updated: 2026-08-22 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/thx-tune-up/id592624594/reviews.md ## What is THX tune? 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 http://bit.ly/X9h5rbchannel at YouTube.com/THXVids.   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   Extras • 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. ## Key features - Video test patterns - Picture settings adjustment - Audio tests - Speaker phase check - Interactive tutorials - Color and tint calibration ## What do users think of THX tune? Overall sentiment: neutral **Pros** - 👍 Great for calibrating TV picture - 🚀 Easy to use - 💡 Useful for novice and enthusiast users - 🔊 Good for audio calibration - 🎥 Helpful test patterns and videos **Cons** - 🐛 Crashes on newer iOS versions - 🔧 Limited functionality without HDMI connection - 🔍 Inaccurate color calibration - 🔇 Limited audio calibration options - 🕰️ App hasn't been updated in years **Commonly reported bugs** - Crashes on launch - Test patterns not displaying on TV - Audio issues with Chromecast - Incompatible with OLED TVs - Inaccurate color and tint adjustments **Most requested features** - Support for 4K and HDR content - Expanded audio calibration options - Dedicated app for Apple TV - More comprehensive calibration tools - Regular updates to support new devices ## Recent user reviews (10 of 262) All indexed reviews: https://appshunter.io/ios/app/thx-tune-up/id592624594/reviews.md ### 5/5 — Thx, THX! *2026-02-15, version 1.3.1* As someone who’s a big THX fanatic, I was surprised to find there’s an app from them! I think it’s pretty cool, but it could use an update. Plus I am unable to play the THX trailers this app offers. I could see this app being sort of forgotten, but I think a nice, solid update would be refreshing. Otherwise, I like it! Hopefully THX sees this ### 4/5 — Helpful app *2026-02-12, version 1.3.1* This app is a brilliant way to quickly calibrate a TV for correct picture quality. It does seem outdated a little though I think a modern app would be extremely popular especially if it allowed for HDR and correct colour balance calibration too ### 5/5 — Great sounds and pictures. *2025-11-27, version 1.3.1* After I have my new Samsung tv on my birthday, I never got chance to do so until I got today. But pictures looks great on my new TV, and sounds speakers so I hear them and see it. I can stream anytime with Samsung TV Plus, Paramount+, and anything like YouTube. Wow. I can play games better than a old analog tv. Thanks, THX. ### 5/5 — IT STILL WORKS ! Read below *2025-04-19, version 1.3.1* So good news is even after all these years with no updates it still works, so if your having issues follow my method, I mirrored this app to my OLED 4k TV, I have the old 5th Gen 4K Apple TV and was having issues at first like some of the reviews until I set it up differently, before I begin I went to the equipment section (Picture of the TV) and picked my TV brand and Apple TV as my connection I chose no sound bar since I’m not using one, I’m not sure if this is necessary but I was having issues so I decided to configure it and see if it worked. 1. Open the app and click get started on the home page, video will begin 2. Then on your iPhone go swipe down or up (depending how old your iPhone is) and find the screen mirroring option and click on your Apple TVs name 3. Your TV will connect and It will be a black screen but you will hear the ladies voice starting the video 4. On your iPhone exit the video, and restart the video 5. The video will show up on your TV working immediately, if you want to watch it then turn your iPhone side ways (landscape mode) so it shows it in full screen, you can now exit the video on your phone and go to the adjustment section ( wrench and screw driver picture) and begin, when moving from section to section you can hold it normal, you only need to hold it in landscape mode when your doing the tests so that the the images fill up your whole screen. Enjoy ! ### 5/5 — The Deep Note Button. *2025-03-27, version 1.3.1* My favorite part is listening to the deep note thing with a push of the button. ### 1/5 — Not working anymore *2024-09-23, version 1.3.1* App abandoned? ### 2/5 — Worked until ios18. Now crashes *2024-09-19, version 1.3.1* Since patching to ios18, the app says “updating assets”, then crashes to Home Screen. Thx you need to update the app to work with ios18z Apple HDMI adapter & an HDMI cable or mirrored Apple TV mode. Gets you about 30-40% to a pro ISF/THX calibration if you do it RIGHT. I’m an ISF calibrator lvl 1&2 and use this to do quick checks. To the idiots complaining about no ‘sharpness’ adjustment- FYI, the ‘sharpness’ control- 90% of the time has nothing to do with sharpness!! Samsungs should be ZERO. The higher ‘sharpness’ goes the less ‘sharp’ it gets. ### 4/5 — Great tool for tv or projector *2024-08-15, version 1.3.1* Gets me at about 90% of what a professional calibration would and it’s easy to use! Works great with my Apple TV and projector. Could use an update to include ATMOS systems ### 5/5 — Why Pay $ this is DIY Perfection! *2024-04-30, version 1.3.1* It gave a perfect picture with easy to understand instructions, even if it is an old program. This isn’t a five-minute set up, but when you’re done, it’s exactly what you want. ### 2/5 — 4/2024 Outdated but works-ish *2024-04-07, version 1.3.1* -1080p… not 4k although the video trailers don’t work anyways so it doesn’t matter -2ch only… have to have an adapter to plug direct into AVR with your iPhone otherwise 2ch only but does have thx sound :-) ## Frequently asked questions about THX tune ### What does THX tune-up™ do? THX tune-up™ helps you properly adjust your TV, projector, and speakers to get the best performance from your entertainment system. It uses custom video test patterns and audio tests to guide you through optimizing picture settings and ensuring your speakers are connected correctly. ### What are the key features of THX tune-up™? Key features include custom video test patterns for adjusting aspect ratio, brightness, contrast, color, and tint. It also offers audio tests to check speaker assignment and phase for stereo or 5.1 sound systems. The app provides interactive tutorials and advice on room lighting and viewing distance. ### Is THX tune-up™ free to use? Yes, the application is free to download and use. There are no in-app purchases or advertisements mentioned in the provided description. ### What devices are compatible with THX tune-up™? The app supports specific iOS devices including iPhone 4, 4S, 5; iPad 2, 3, 4 & Mini; and iPod Touch 4 & 5, running iOS 7.1 or later. For Apple TV, the 3rd generation or later is required. Specific connection methods via HDMI adapter or AirPlay are detailed in the app's requirements. ### How do I use THX tune-up™ to adjust my TV? Connect a supported iOS device to your TV or AVR using an HDMI adapter and cable, or via AirPlay with Apple TV. The app will then guide you through a series of interactive tutorials using custom test patterns to adjust settings like brightness, contrast, and color based on your room's lighting. ## Version history (last 5 releases) ### 1.3.1 — 2017-01-04 This app has been updated by Apple to display the Apple Watch app icon. Fixed issue with iPhone 7 crash. ### 1.3 — 2016-09-25 Fixed issues when running with iOS 10. Added support for Chromecast connection to TV. ### 1.2.3 — 2016-04-18 Fixed issues with Facebook post and Twitter tweet. ### 1.2.2 — 2015-11-15 Fixed iOS 9.1 issue when saving equipment connection type. ### 1.2.1 — 2015-11-05 iOS 9 issue with equipment configuration. ## Apps similar to THX tune | App | Rating | Price | Category | | --- | --- | --- | --- | | [Home Widget - for HomeKit](https://appshunter.io/ios/app/home-widget-for-homekit/id1579036143) | 4.1 (151) | Free | Utilities | | [Colorimeter Camera Color Meter](https://appshunter.io/ios/app/colorimeter-camera-color-meter/id6449255688) | 4.7 (49) | Free | Utilities | | [Colorimeter App](https://appshunter.io/ios/app/colorimeter-app/id1542365656) | 4.7 (137) | Free | Utilities | | [Surround Speaker Check](https://appshunter.io/ios/app/surround-speaker-check/id1052439918) | 3.8 (40) | Free | Utilities | | [Sound test for Dolby Atmos](https://appshunter.io/ios/app/sound-test-for-dolby-atmos/id6447675518) | 4.3 (7) | $19.99 | Utilities | | [Plex Dash](https://appshunter.io/ios/app/plex-dash/id1500797677) | 4.6 (2,151) | Free | Utilities | ## Related topics [home theater](https://appshunter.io/ios/topics/home-theater) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-22.*