# micOnTrax: Midi Audio Player — Live Sing Record Plays With Fx > Mobile karaoke player with real-time audio effects and recording. (iPhone/iPad app by Gianpiero Mellone.) - Source: https://appshunter.io/ios/app/micontrax-midi-audio-player/id1448605882 (this page in markdown: same URL + `.md`) - Developer: [Gianpiero Mellone](https://appshunter.io/developer/1448605881) - Category: Music, Entertainment - Price: Free with in-app purchases - Rating: 4.30/5 from 16 App Store ratings · 14 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 112 MB - Languages: American English, French (France), German (Germany), Italian, European Portuguese, European Spanish - Released: 2020-01-04 - Data updated: 2026-07-07 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/micontrax-midi-audio-player/id1448605882/reviews.md ## What is micOnTrax? Turn your iPhone / iPad into a music karaoke player that lets you sing, play or practice on your backing tracks. Listen while you perform, thanks to the audio connection (earpods, external microphones or external audio devices) and real-time audio effects You can adjust the volume and audio effects of the backing track and microphone thanks to the included mixer FEATURES : - Can read Mid , Kar , Mp3 , Wav , Mp4 Mov video , CDG files (Mp3+G) or Zipped CDG. * - Realtime Audio input monitoring with adjustable effects, eq, dynamic compressor and voice harmonizer - Records, modify, share, export your audio session - Support audio in background - Import your songs with iTunes file sharing - Play files directly on Usb external drives and iCloud Drive - High quality GM/GS sound bank already included for midi files - Can read lyrics and midi files chords if available. - Auto or manual reading vocal harmonizer tracks on midi files if available: will be added to your voice other pitched voices that follow the midi notes of the track - Support SoundFonts (sf2) for midi files, import them with iTunes file sharing - Support AirPlay for Lyrics on external screen - Create and edit Playlists - On all files, you can edit and save both the song's tempo and pitch * - Editing midi files channel in a non-destructive way: Control Change parameters (Volume CC7, Reverb CC91, Chorus CC93, Pan CC10), Program change (Instrument), mute, solo * Recommended iPhone 6 / iPod touch 6th generation or higher * Note: this free version only play half the duration of the song and does not allow the song parameters to be saved. Please unlock these limits with in app purchase Help us improve !!! Please Leave Feedback!! Thanks For support contact us: support@micontrax.info ## Key features - Karaoke singing with backing tracks - Real-time audio effects (EQ, harmonizer) - Record, modify, and share audio sessions - Supports multiple audio/video file formats - Playlist creation and editing - Adjustable tempo and pitch - MIDI file editing and SoundFont support ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Unlock full version | $15.99 | one-time | ## Recent user reviews (10 of 14) All indexed reviews: https://appshunter.io/ios/app/micontrax-midi-audio-player/id1448605882/reviews.md ### 3/5 — Still needs work *2026-03-19* Nice concept app. It is nice not needing a separate sound module but the changes in the midi tracks (muting channels) don’t remain when you close out and come back. The key change remains. Also, when adding songs to a playlist, you need to scroll every song from the master list until you get to the one you need. There should be a search bar. Therefore, too many glitches to use publicly. ### 5/5 — Loading file *2024-10-04* Any update...? For loading file to slow? ### 5/5 — Loading file *2024-09-23* Any update...? For loading file to slow?a little slow. ### 5/5 — Doesn’t support AirPlay *2024-05-03* I bought the full version and the list works ok once you figure out how to do it. I was surprised to find out that it doesn’t support screen sharing with audio output. I have iPhone pro 12 and latest Apple TV running iOS 14.4 but the app only will output the video not the audio. This is disappointing because I run my microphones and mix after the Apple TV. This should support AirPlay. Is that something you are working on? Or is there a work around? Since the update this is now the best karaoke player on the App Store. Thanks for being so responsive to customer service! Every other app wants you to stream and be part of a community. I just want to use my files at home for friends and family. Karaoke Anywhere used to do that but they never update or bug fix. This app does and it works and is worth the money! Since I wrote this 3 years ago the operating systems have changed. But the app has not changed to continue to work with the current system version. I have contacted the developer by email with no response. So I am not sure if they are still in business or dead or what. This had been working great up until IOS 17 something and then quit. I imagine that with some code tweaking it could come back as the best player out there but as of now it’s useless. Can someone please notify us customers as to the status of this developer? Thanks. **Developer response:** I am really glad you were satisfied. Thanks so much ### 3/5 — CDG player doesn’t stay in sync *2023-03-05* I paid for this app so that I could play and perform with CDG zipfiles of my own songs. Unfortunately, when playing many of those files it does not synchronize the scrolling or sweeping of the lyrics with the audio properly! It’s the first CDG player app I have found on any platform that fails to display these files correctly. Unfortunately, I have already paid for the app…. And when I click the menu item that says “email for support,” the app shuts down instead of supplying me with an email address for the company. May I have my money back? ### 4/5 — Dont work on iphone ios 16.2 *2022-12-30, version 1.26.50* Dont work on iphone ios 16.2 Work on ipad edition 9 ### 1/5 — Poorly designed interface *2022-10-16* First thing you get is feedback you then turn down the speaker to stop the feedback then you can’t hear the song. Needs a bit more thought of how it works. I haven’t the time to waist. ### 1/5 — pas bon du tout! *2022-08-15, version 1.26.50* Pas bon du tout ### 5/5 — Please please please!!! *2021-12-11, version 1.26.50* Love the app but I really need someone to contact me over a problem. Emailed twice, no response, please contact me. ### 3/5 — You can’t record only your voice without music *2021-07-27* I can’t figure out how to record without music I just want my voice with an echo and when I press record nothing happens ## Frequently asked questions about micOnTrax ### What file formats does micOnTrax support? micOnTrax supports a wide range of formats including Mid, Kar, Mp3, Wav, Mp4, Mov video, CDG files (Mp3+G), and Zipped CDG. It also supports SoundFonts (sf2) for MIDI files. ### Can I use micOnTrax offline? Yes, micOnTrax supports audio in the background and can play files directly from USB external drives and iCloud Drive, allowing for offline use once files are imported. ### Does micOnTrax have ads? No, micOnTrax does not contain advertisements. The app is free to download and use, with optional in-app purchases to unlock full functionality. ### What are the limitations of the free version of micOnTrax? The free version of micOnTrax limits song playback to half duration and does not allow saving song parameters. These limitations can be removed with an in-app purchase. ### What devices is micOnTrax compatible with? micOnTrax is recommended for iPhone 6 / iPod touch 6th generation or higher and is compatible with iPhone, iPad, and iPod devices. ### How often is micOnTrax updated? The latest version of micOnTrax is 1.26.50, last updated on April 7, 2021. Updates are released periodically to improve functionality and add features. ### Can I use external microphones with micOnTrax? Yes, micOnTrax allows for real-time audio input monitoring with adjustable effects when using earpods, external microphones, or external audio devices. ### What is the user rating for micOnTrax? micOnTrax has a user rating of 4.3 stars based on 16 ratings, indicating a generally positive user experience. ## Version history (last 5 releases) ### 1.26.50 — 2021-04-07 -Fix minor bugs on setup menu ### 1.26.49 — 2021-03-22 - Fixed crash on some audio files that contain special characters in the lyrics ### 1.26.48 — 2021-03-18 - Minor bugs Fixed ### 1.26.47 — 2021-03-03 - improved the visualization of the lyrics written in the various languages ### 1.26.46 — 2021-02-20 -Fix minor bugs in playlist mode ## Apps similar to micOnTrax | App | Rating | Price | Category | | --- | --- | --- | --- | | [Vocal Mic - Acapella Recording](https://appshunter.io/ios/app/vocal-mic-acapella-recording/id1598856584) | 4.5 (57) | Free | Music | | [MIDI Score](https://appshunter.io/ios/app/midi-score/id797590911) | 4.0 (147) | Free | Music | | [Sweet MIDI Player](https://appshunter.io/ios/app/sweet-midi-player/id477678002) | 3.6 (83) | Free | Music | | [EQ560](https://appshunter.io/ios/app/eq560/id1486125569) | 3.7 (29) | Free | Music | | [Winlive Gold](https://appshunter.io/ios/app/winlive-gold/id1628987835) | 3.0 (2) | Free | Music | | [MIDITrail](https://appshunter.io/ios/app/miditrail/id550882595) | 3.2 (78) | Free | Music | --- *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 2026-07-07.*