# TestTune by Educar Labs — Test Tone Utility for 12volt > Stereo system tuning utility for 12-volt professionals. (iPhone/iPad app by John Wheeler.) - Source: https://appshunter.io/ios/app/testtune-by-educar-labs/id1499724474 (this page in markdown: same URL + `.md`) - Developer: [John Wheeler](https://appshunter.io/developer/1496398479) - Category: Utilities, Music - Price: $19.99 - Rating: 4.30/5 from 18 App Store ratings · 8 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 104 MB - Languages: American English - Released: 2020-07-10 - Data updated: 2026-08-22 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/testtune-by-educar-labs/id1499724474/reviews.md ## What is TestTune by Educar Labs? In conjunction with the Educar Tuning Checklist, this app supports professionals in tuning high performance stereo systems. Tuning checklists are available at educarlabs.com/support ## Key features - Stereo system tuning support - Works with Educar Tuning Checklist - For high-performance systems - 12-volt application ## Chart rankings - #175 in Top Paid · Utilities (US App Store) ## Recent user reviews (8 of 8) All indexed reviews: https://appshunter.io/ios/app/testtune-by-educar-labs/id1499724474/reviews.md ### 5/5 — Perfect tool for tuning audio *2022-01-28* Love this. I was told about this app earlier today and have used it for two cars so far. How great is it to have pink noise in an app with so many ways to use it. The best part for me is the fact that I can easily move between this noise generator and the music app to compare the RTA tune to real music. I can see this being an invaluable addition to my tuning toolbox. ### 5/5 — What a great tool *2022-01-20* The mastermind for this app should get his own gold star. What a great tool that you always have. It’s useful as a sales tool and for any installer that takes his job seriously. Kudos to the team at education for a truly bad to the bone tool!! ### 1/5 — Unable to us *2021-04-10* Has message on app that prevent the use of app. ### 1/5 — Help *2020-09-29* Screen locks up, can’t get past 1st page saying to use lightning to usb ### 1/5 — Doesn’t work with all radios *2020-07-15* had great hopes for this but doesn’t work on all radios after app is open and you begin to play a test tone audio muted and switched to I tunes tried to switch back won’t play tone tried a iPad with no music on it and same thing plays about 30 seconds and muted get no playable media on usb message Tried this on several ford sync systems with same results ### 5/5 — A must have tool !! *2020-07-12* Great tool that allows an audio tech to complete many tasks, and comes in really handy specially when dealing with vehicles that don’t have a CD player. Well worth the investment. Art ### 5/5 — This is a installer must have app *2020-07-12* This is a great app for any professional installer. This app will save you so much time on tuning a new sound system. ### 5/5 — A must have for any 12Volt audio specialist. *2020-07-11* Please add CarPlay compatibility! **Developer response:** Hi, thanks for the kind words - we did test on CarPlay prior to launch and confirmed operation from the handset (we do not have the UI on the CarPlay screen at present). Can you confirm if you have operation from the handset touchscreen? Thanks! ## Frequently asked questions about TestTune by Educar Labs ### What is TestTune used for? TestTune is a utility app designed to assist professionals in tuning high-performance 12-volt stereo systems. It is used in conjunction with the Educar Tuning Checklist for accurate adjustments. ### How much does TestTune cost? TestTune is a paid application priced at $19.99. This one-time purchase grants access to its full functionality for stereo system tuning. ### What devices is TestTune compatible with? TestTune is available for iPhone, iPad, and iPod devices. It is designed to run on Apple's mobile operating system. ### What is the age rating for TestTune? TestTune has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content. ### How often is TestTune updated? TestTune was last updated on July 10, 2020, with version 1.7.20. Further update frequency is not specified in the provided data. ### Where can I find the Educar Tuning Checklist? The Educar Tuning Checklist, which works with TestTune, is available for download at educarlabs.com/support. This resource is essential for using the app effectively. ### Does TestTune have ads? No, TestTune does not contain advertisements. As a paid application, it provides an ad-free experience for users. ### What is the user sentiment for TestTune? TestTune has a positive user sentiment, indicated by its rating of 4.3 stars from 18 ratings. This suggests most users find the app effective for its intended purpose. ## Version history (last 1 release) ### 1.7.20 — 2020-07-10 No release notes. ## Apps similar to TestTune by Educar Labs | App | Rating | Price | Category | | --- | --- | --- | --- | | [DM-RTA](https://appshunter.io/ios/app/dm-rta/id1445780170) | 3.2 (11) | Free | Utilities | | [HARMONY DSP](https://appshunter.io/ios/app/harmony-dsp/id1638244924) | — | Free | Utilities | | [AX-DSP-XL](https://appshunter.io/ios/app/ax-dsp-xl/id1495854432) | 2.2 (5) | Free | Utilities | | [S8 DSP Mobile](https://appshunter.io/ios/app/s8-dsp-mobile/id1518830726) | 1.8 (4) | Free | Utilities | | [DM Smart DSP](https://appshunter.io/ios/app/dm-smart-dsp/id1445478173) | 2.8 (39) | Free | Utilities | | [DM Control](https://appshunter.io/ios/app/dm-control/id1469628183) | 2.3 (4) | Free | Utilities | --- *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.*