# STEELPRO MP3 > Smartphone remote control for STEELPRO XZR-328-SUB audio units. (iPhone/iPad app by SIU KEUNG CHAN.) - Source: https://appshunter.io/ios/app/steelpro-mp3/id1447199704 (this page in markdown: same URL + `.md`) - Developer: [SIU KEUNG CHAN](https://appshunter.io/developer/1408408970) - Category: Entertainment - Price: Free - Age rating: 4+ - Requires: iOS 12.0 · 46 MB - Languages: American English - Released: 2019-01-05 - Data updated: 2026-08-13 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/steelpro-mp3/id1447199704/reviews.md ## What is STEELPRO MP3? Controla tu unidad STEELPRO Modelo “XZR-328-SUB" desde tu celular con esta aplicación para acceder a la radio, USB, TARJETA SD, BLUETOOTH Y AUX. Conecta tu teléfono inteligente a “XZR-328-SUB ”a través de Bluetooth, luego toca la aplicación y enciéndela en tu teléfono inteligente. ## Key features - Radio control - USB playback - SD card playback - Bluetooth connectivity - AUX input control - Smartphone integration ## Recent user reviews (10 of 21) All indexed reviews: https://appshunter.io/ios/app/steelpro-mp3/id1447199704/reviews.md ### 1/5 — No funciona con ningún estéreo *2025-10-01, version 3.2.31* No funciona ni con estéreos de un DIN o de pantalla de doble DIN ### 1/5 — No se conecta *2024-07-19, version 2.3.67* No he podido conectar el autoestéreo con la app ### 1/5 — Actualización *2024-07-05, version 2.3.67* Falta una actualización más reciente, no entra a la app, existe otra app para poder usar mi estéreo? ### 1/5 — No sirve en iPhone ,nunca abre el menú del estéreo *2024-06-14, version 2.3.67* No sirve ### 1/5 — Muy mala app no conecta con mi iPhone nomás se queda trabada *2023-10-21, version 2.3.67* Por favor corregir ese detalle ### 1/5 — No funciona *2023-10-09, version 2.3.67* Era muy útil y práctica pero dejo de funcionar No se porque no la corrigen.. ### 1/5 — No sirve *2023-09-22, version 2.3.67* Se conecta pero la aplicación no da la opción de uso ### 1/5 — No sirve *2023-05-17, version 2.3.67* Hagan que funcione para iPhone Pat a poder conectar el estéreo como dice cuando lo compra uno ### 1/5 — No sirve para nada *2023-04-18, version 2.3.67* No sirve la aplicación no carga nada, espero y lo solucionen. ### 1/5 — No funciona en iPhone *2023-04-10, version 2.3.67* Pésima aplicación, espero puedan hacer que funcione. ## Frequently asked questions about STEELPRO MP3 ### What STEELPRO unit does STEELPRO MP3 control? STEELPRO MP3 is designed to control the STEELPRO "XZR-328-SUB" audio unit. It allows you to manage its radio, USB, SD card, Bluetooth, and AUX functions. ### How do I connect STEELPRO MP3 to my audio unit? You need to connect your smartphone to the "XZR-328-SUB" unit via Bluetooth. Once paired, you can open the STEELPRO MP3 application on your phone to gain control. ### What features can I control with STEELPRO MP3? With STEELPRO MP3, you can access and control the radio, playback from USB drives, SD cards, and the AUX input. Bluetooth connectivity is also managed through the app. ### Is STEELPRO MP3 free to use? Yes, STEELPRO MP3 is available for free. There are no costs associated with downloading or using the application. ### What devices is STEELPRO MP3 compatible with? STEELPRO MP3 is available for iPhone and iPod devices. It is rated for ages 4 and up. ### When was STEELPRO MP3 last updated? The latest version of STEELPRO MP3, 3.2.31, was last updated on December 31, 2024. The app was originally released on January 5, 2019. ### Does STEELPRO MP3 have ads? No, STEELPRO MP3 does not contain advertisements. The application is ad-free, providing an uninterrupted user experience. ## Version history (last 5 releases) ### 3.2.31 — 2024-12-31 Add new features. ### 3.1 — 2024-08-05 Add new features. ### 2.3.67 — 2021-09-21 Support Iphone12 ### 2.2.59 — 2020-08-20 Support equipment with reversing detection ### 2.1.58 — 2020-07-30 Support iphoneX ## Apps similar to STEELPRO MP3 | App | Rating | Price | Category | | --- | --- | --- | --- | | [K8M Remote](https://appshunter.io/ios/app/k8m-remote/id1563963861) | 3.5 (2) | Free | Entertainment | | [Radio Bronco 107.7](https://appshunter.io/ios/app/radio-bronco-1077/id1454699959) | 3.8 (13) | Free | Entertainment | | [Blunami Classic](https://appshunter.io/ios/app/blunami-classic/id1108536203) | 4.3 (26) | Free | Entertainment | | [GIGA Fibra Play](https://appshunter.io/ios/app/giga-fibra-play/id6443831357) | — | Free | Entertainment | | [KBSOUND STAR](https://appshunter.io/ios/app/kbsound-star/id1441757132) | — | Free | Entertainment | | [LG Soundbar AlexaLoginManager](https://appshunter.io/ios/app/lg-soundbar-alexaloginmanager/id6503428434) | 2.0 (4) | Free | Entertainment | ## More apps by SIU KEUNG CHAN - [Soundstream Autoestereo](https://appshunter.io/ios/app/soundstream-autoestereo/id1409620081) - [AMERICAN MUSCLE APP](https://appshunter.io/ios/app/american-muscle-app/id1462870973) - [WANTO Audio](https://appshunter.io/ios/app/wanto-audio/id1462871480) - [PolarLander](https://appshunter.io/ios/app/polarlander/id1465532502) - [XOMAX](https://appshunter.io/ios/app/xomax/id1466340477) All apps by SIU KEUNG CHAN: https://appshunter.io/developer/1408408970 --- *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 2026-08-13.*