# A2DPblocker - Bluetooth Mono — Bluetooth A2DP Blocker > Blocks Bluetooth stereo audio (A2DP) while allowing other Bluetooth functions. (iPhone/iPad app by Gnavicks.) - Source: https://appshunter.io/ios/app/a2dpblocker-bluetooth-mono/id448525106 (this page in markdown: same URL + `.md`) - Developer: [Gnavicks](https://appshunter.io/developer/330818060) - Category: Utilities, Music - Price: $2.99 - Rating: 2.00/5 from 11 App Store ratings · 179 written reviews indexed - Age rating: 4+ - Requires: iOS 7.0 · 2 MB - Languages: American English - Released: 2011-09-13 - Data updated: 2026-09-02 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/a2dpblocker-bluetooth-mono/id448525106/reviews.md ## What is A2DPblocker? WHAT IS IT? ------------------------------------------// A2DPblocker is an audio player that blocks the Advanced Audio Distribution Profile (A2DP) (i.e. Bluetooth Stereo Profile) from connecting on a Bluetooth enabled iOS device without completely disabling the Bluetooth hardware. This enables the iOS device to continue to perform other Bluetooth functions like default audio output from another audio app (dictation, audio books, podcasts, GPS, music streaming, etc.) to a Hands-Free Profile (HFP) enabled Bluetooth car kit, headset, etc. as well as make phone calls over Bluetooth, and wirelessly control the iPod with a paired AVRCP enabled Bluetooth accessory. A2DP was introduced in iOS 3.0 and this app simply blocks A2DP from connecting and maintains the default audio output device when it's running in the foreground (including when the screen is locked on iOS 3.1 or later devices) or background (requires iOS 4.0 or later). You can finally disable A2DP once and for all with this app and stop manually changing the default audio output device each time your car kit, headset, or whatever A2DP enabled Bluetooth accessory you have connects to your iOS device. FEATURES ------------------------------------------// - blocks A2DP. - defaults audio output from another audio app to a HFP enabled Bluetooth car kit, headset, etc. - maintains the default audio output device. - built-in iPod controls. - audio Playback Queue (requires iOS 4.0 or later). - suppresses audio notification alerts (only on pre-iOS 7.0 or earlier devices). HOW TO USE ------------------------------------------// 1.) Pair your Bluetooth enabled iOS device with your Bluetooth car kit, headset, etc. 2.) Launch A2DPblocker and ensure “A2DP Blocker" switch is ON. 3.) Add a downloaded non-DRM (i.e. not copy-protected) audio track from your music library to the Playback Queue on iOS 4.0 or later and adjust the independent volume slider to guarantee A2DP is blocked. 4.) Ensure “Remote Control" switch is OFF. 5.) Set Default Audio to “speaker+” / “receiver” / “speaker” to block A2DP or “headset+” to default audio output via HFP. 6.) Play Playback Queue. 7.) Launch and configure your other audio app or begin playing the iPod with the built-in iPod controls or an attached accessory. Now your Bluetooth enabled iOS device should block the A2DP connection from occurring or audio should now be streaming via the HFP connection as long as A2DPblocker is active. Successive launches of A2DPblocker doesn't require reconfiguration and it will not interfere with the phone call function or transport controls (AVRCP). NOTICE ------------------------------------------// HFP enabled Bluetooth car kits, headsets, etc. that only support the phone call function may configure A2DPblocker to utilize the same connection to playback audio (see HOW TO USE). However, the audio quality of the HFP standard is designed to be low bitrate, mono, and frequency limited to voice ranges, which is why music streaming may sound a bit lacking, but streaming dictation, audio books, podcasts, GPS, etc. for example would sound normal. REQUIREMENTS ------------------------------------------// - requires iOS 7.0 or later. - Bluetooth. - microphone or other audio input. - works best with the audio Playback Queue active. CONTACT INFO ------------------------------------------// Please contact me with your questions and/or comments. If you just love A2DPblocker then please leave a review! - twitter.com/gnavicks - dkanem.selfip.com ## Key features - Blocks A2DP connections - Defaults audio output to HFP car kits/headsets - Maintains default audio output device - Built-in iPod controls - Audio Playback Queue support - Suppresses audio notification alerts (older iOS) ## What do users think of A2DPblocker? Overall sentiment: negative **Pros** - ✅ Solves Bluetooth audio routing issues for specific car models - 🎵 Enables music playback on older Bluetooth devices without A2DP support - ⚡ Simple setup process when instructions are followed - 👨‍💼 Responsive and helpful developer support - 💰 Affordable one-time purchase price - 🔧 Useful workaround for iOS limitations with Bluetooth audio **Cons** - 🔴 Does not work in background - app must stay in foreground - 🔋 Significant battery drain when app is running - 📉 Poor audio quality - mono instead of stereo - 📱 Cannot lock phone screen while using app - 🚫 Requires manual playlist creation instead of using standard music app - ❌ Frequently fails to work or stops working intermittently - 🔊 Audio quality degradation compared to standard Bluetooth streaming - ⚠️ Incompatible with many streaming services (Spotify, Pandora, iHeartRadio) - 🐛 Plays multiple songs simultaneously causing audio chaos - 📵 Disconnects when switching to other apps - 🔌 Limited to local music library only **Commonly reported bugs** - App stops working when screen is locked - Simultaneous playback of multiple songs - Audio disconnects when switching apps - Intermittent functionality - works then suddenly stops - Incompatibility with iOS 5, iOS 8, and newer versions - Cannot clear playback queue - HFP function does not work with GPS - App crashes on certain iOS versions - Bluetooth connection drops when using navigation - App fails to launch or open properly - Audio quality issues with next/previous track controls **Most requested features** - Background operation while using other apps - Support for streaming services like Spotify and Pandora - Screen lock capability while app is active - Integration with standard iOS music player - Stereo audio support instead of mono - Reduced battery consumption - Better audio quality - Automatic playlist management - Support for navigation apps without disconnecting - iOS 8+ compatibility improvements ## Recent user reviews (10 of 179) All indexed reviews: https://appshunter.io/ios/app/a2dpblocker-bluetooth-mono/id448525106/reviews.md ### 1/5 — Crap! *2023-08-10* Bought to play out of 2 speakers. Doesn’t work. **Developer response:** I'm sorry A2DPblocker is not working for you as expected. First you will need to add a non-DRM (i.e. not copy-protected) audio track to your music library via the iTunes Store app or via iTunes on Mac/PC. Then make sure that you configure A2DPblocker in the following way: 1) Pair your Bluetooth enabled iOS device with your Bluetooth car kit, headset, etc. 2) Launch A2DPblocker and ensure "A2DP Blocker" switch is ON. 3) Add a downloaded non-DRM (i.e. not copy-protected) audio track from your music library to the Playback Queue and adjust the independent volume slider to guarantee A2DP is blocked. 4) Ensure "Remote Control" switch is OFF. 5) Set Default Audio to "speaker+" / "receiver" / "speaker" to block A2DP or "headset+" to default audio output via HFP. 6) Play Playback Queue. 7) Minimize A2DPblocker to the background, but do not close A2DPblocker from the app switcher. 8) Launch and configure your other audio app or begin playing the iPod with the built-in iPod controls or an attached accessory. ### 1/5 — What a useless thing *2022-02-17* Waste of money cloud not connect my milwakuee radio so went and bought this and is not solving anything basically. Don’t buy it **Developer response:** I'm sorry A2DPblocker is not working for you as expected. First you will need to add a non-DRM (i.e. not copy-protected) audio track to your music library via the iTunes Store app or via iTunes on Mac/PC. Then make sure that you configure A2DPblocker in the following way: 1) Pair your Bluetooth enabled iOS device with your Bluetooth car kit, headset, etc. 2) Launch A2DPblocker and ensure "A2DP Blocker" switch is ON. 3) Add a downloaded non-DRM (i.e. not copy-protected) audio track from your music library to the Playback Queue and adjust the independent volume slider to guarantee A2DP is blocked. 4) Ensure "Remote Control" switch is OFF. 5) Set Default Audio to "speaker+" / "receiver" / "speaker" to block A2DP or "headset+" to default audio output via HFP. 6) Play Playback Queue. 7) Minimize A2DPblocker to the background, but do not close A2DPblocker from the app switcher. 8) Launch and configure your other audio app or begin playing the iPod with the built-in iPod controls or an attached accessory. ### 5/5 — Scala rider teams et *2021-07-22* Merci à Dalton pour son aide et sa réactivité pour mise en marche de l’application. Je vais pouvoir maintenant utiliser le Waze lors de mes balades en moto I’m a happy biker **Developer response:** Thanks for supporting A2DPblocker! ### 1/5 — Só trava, perdi meu dinheiro *2021-03-15* Não da para usar sem ele estar na tela **Developer response:** I'm sorry A2DPblocker is not working for you as expected in the background. First you will need to add a non-DRM (i.e. not copy-protected) audio track to your music library via the iTunes Store app or via iTunes on Mac/PC. Then make sure that you configure A2DPblocker in the following way: 1) Pair your Bluetooth enabled iOS device with your Bluetooth car kit, headset, etc. 2) Launch A2DPblocker and ensure "A2DP Blocker" switch is ON. 3) Add a downloaded non-DRM (i.e. not copy-protected) audio track from your music library to the Playback Queue and adjust the independent volume slider to guarantee A2DP is blocked. 4) Ensure "Remote Control" switch is OFF. 5) Set Default Audio to "speaker+" / "receiver" / "speaker" to block A2DP or "headset+" to default audio output via HFP. 6) Play Playback Queue. 7) Minimize A2DPblocker to the background, but do not close A2DPblocker from the app switcher. 8) Launch and configure your other audio app or begin playing the iPod with the built-in iPod controls or an attached accessory. ### 1/5 — I need a refund *2020-07-19, version 1.7.2* The audio streaming is very poor when you run it through the app, it loses audio quality when compared to the Bluetooth steaming. Plus you only limited on streaming your own music. You can steam Pandora or spotify. I request a full refund from the developer since it didn't meet my expectations. Thank you! ### 5/5 — Worked great the first time! *2019-05-05, version 1.7.2* Just make sure to read the instructions. ### 1/5 — Ne fonctionne pas *2019-03-27* Ne fonctionne pas avec mon iphone 6 IOS 12... **Developer response:** I'm sorry A2DPblocker is not working for you as expected. Please make sure that you configure A2DPblocker in the following way: 1) Pair your Bluetooth enabled iOS device with your Bluetooth car kit, headset, etc. 2) Launch A2DPblocker and ensure "A2DP Blocker" switch is ON. 3) Add a downloaded non-DRM (i.e. not copy-protected) audio track from your music library to the Playback Queue and adjust the independent volume slider to guarantee A2DP is blocked. 4) Ensure "Remote Control" switch is OFF. 5) Set Default Audio to "speaker+" / "receiver" / "speaker" to block A2DP or "headset+" to default audio output via HFP. 6) Play Playback Queue. 7) Press the home button to minimize A2DPblocker (do not close A2DPblocker from the app switcher). 8) Launch and configure your other audio app or begin playing the iPod with the built-in iPod controls or an attached accessory. ### 1/5 — Will not work in background *2019-01-14* Battery drainer. The app has to be actively displayed on your phone. You cannot use your phone for ANYTHING else if you want to listen. **Developer response:** I'm sorry A2DPblocker is not working for you as expected. Please make sure that you use the Playback Queue so the app will continue working in the background. Just make sure that you configure A2DPblocker in the following way: 1) Pair your Bluetooth enabled iOS device with your Bluetooth car kit, headset, etc. 2) Launch A2DPblocker and ensure "A2DP Blocker" switch is ON. 3) Add a downloaded non-DRM (i.e. not copy-protected) audio track from your music library to the Playback Queue and adjust the independent volume slider to guarantee A2DP is blocked. 4) Ensure "Remote Control" switch is OFF. 5) Set Default Audio to "speaker+" / "receiver" / "speaker" to block A2DP or "headset+" to default audio output via HFP. 6) Play Playback Queue. 7) Press the home button to minimize A2DPblocker (do not close A2DPblocker from the app switcher). 8) Launch and configure your other audio app or begin playing the iPod with the built-in iPod controls or an attached accessory. ### 1/5 — DOES NOT WORK *2018-09-14* Do not waste your time or money, does not work! **Developer response:** I'm sorry A2DPblocker is not working for you as expected. Please make sure that you configure A2DPblocker in the following way: 1) Pair your Bluetooth enabled iOS device with your Bluetooth car kit, headset, etc. 2) Launch A2DPblocker and ensure "A2DP Blocker" switch is ON. 3) Add a downloaded non-DRM (i.e. not copy-protected) audio track from your music library to the Playback Queue and adjust the independent volume slider to guarantee A2DP is blocked. 4) Ensure "Remote Control" switch is OFF. 5) Set Default Audio to "speaker+" / "receiver" / "speaker" to block A2DP or "headset+" to default audio output via HFP. 6) Play Playback Queue. 7) Press the home button to minimize A2DPblocker (do not close A2DPblocker from the app switcher). 8) Launch and configure your other audio app or begin playing the iPod with the built-in iPod controls or an attached accessory. ### 1/5 — Not worth the hassle/money *2018-09-11* Tried this, it is not seamless. Expected to launch a podcast and listen without needing additional step of also launching this app. Don’t know how to request a refund! **Developer response:** I'm sorry A2DPblocker is not working for you as expected. Refunds must be requested directly from Apple. Please consider using the Shortcuts app on iOS 12 to simultaneously launch both apps. ## Frequently asked questions about A2DPblocker ### What does A2DPblocker do? A2DPblocker is an application that prevents the Advanced Audio Distribution Profile (A2DP), also known as the Bluetooth Stereo Profile, from connecting on your iOS device. This allows your device to use other Bluetooth functions like making calls or receiving GPS audio through your car kit or headset without interruption. ### How does this app improve Bluetooth audio? By blocking A2DP, the app ensures that your default audio output device is maintained. This means you can listen to podcasts, audiobooks, or music through a Hands-Free Profile (HFP) enabled Bluetooth car kit or headset, even when other Bluetooth functions are active. ### Is this app free to use? Based on the provided information, this application is a paid app. It does not appear to have in-app purchases or advertisements, indicating a one-time purchase model. ### What iOS versions are supported? The app blocks A2DP from connecting and maintains the default audio output device when running in the foreground on iOS 3.1 or later. Background functionality, including the Audio Playback Queue, requires iOS 4.0 or later. ### Can I use this app for music streaming? Yes, you can use this app to manage audio playback, including music from your iPod library. It offers built-in iPod controls and an Audio Playback Queue feature. However, the audio quality when streaming through an HFP connection is designed for voice and may be limited in bitrate and frequency range for music. ## Version history (last 5 releases) ### 1.7.2 — 2019-01-03 A2DPblocker v1.7.2 is ready! - built with iOS 11 :) - iOS versions earlier than iOS 7.0 are no longer supported. - added 5.8-inch and 6.5-inch super retina display support. - added 6.1-inch liquid retina display support. - fixed crash when using remote-control on iOS 11.3 or later. - updated About screen. Your 5 star reviews keep the updates coming! Please contact me with your questions and/or comments. If you just love A2DPblocker then please leave a review! - twitter.com/gnavicks - dkanem.selfip.com ### 1.5.2 — 2017-12-28 A2DPblocker v1.5.2 is ready! - built with iOS 10.3 :) - fixed an audio session activation bug on iOS 11. - updated About screen. Your 5 star reviews keep the updates coming! Please contact me with your questions and/or comments. If you just love A2DPblocker then please leave a review! - twitter.com/gnavicks - dkanem.selfip.com ### 1.5.1 — 2017-06-06 A2DPblocker v1.5.1 is ready! - built with iOS 10.3 :) - iOS 5.1 and earlier are no longer supported. - added 64-bit support. - added Apple Music usage description for iOS 10.0 or later. - updated About screen. Your 5 star reviews keep the updates coming! Please contact me with your questions and/or comments. If you just love A2DPblocker then please leave a review! - twitter.com/gnavicks - dkanem.selfip.com ### 1.5 — 2014-10-28 A2DPblocker v1.5 is ready! - fresh new look. - built with iOS 8.1 :) - iOS 4.2 and earlier are no longer supported. - added 4.7-inch and 5.5-inch retina hd display support. - fixed a high battery usage bug on iOS 4.0 or later. - fixed a bug that caused the app to hang on iOS 7.0 or later. - fixed a remote-control deactivation bug on iOS 4.0 or later. - fixed a now-playing metadata bug in elapsed time on iOS 5.0 or later. - updated About screen. Your 5 star reviews keep the updates coming! Please contact me with your questions and/or comments, as I can't respond to reviews. If you just love A2DPblocker then please leave a review! - twitter.com/gnavicks - dkanem.selfip.com ### 1.4 — 2013-09-17 A2DPblocker v1.4 is iOS 7.0 ready! - built with iOS 6.1 :) - added background audio for Playback Queue (requires iOS 4.0 or later). - added remote-control of Playback Queue (requires iOS 4.0 or later). - added now-playing metadata for Playback Queue (requires iOS 5.0 or later). - fixed a bug when adding Playback Queue audio tracks (requires iOS 4.0 or later). - improved Playback Queue interface (requires iOS 4.0 or later). - plays system audio notification alerts (requires iOS 7.0 or later). - sets initial Default Audio to "headset+". - added 4-inch retina display support. - updated audio under-the-hood. - updated About screen. - enhanced user experience. Your 5 star reviews keep the updates coming! Please contact me with your questions and/or comments as I can't respond to reviews. If you just love A2DPblocker then please leave a review! - twitter.com/gnavicks - dkanem.selfip.com ## Apps similar to A2DPblocker | App | Rating | Price | Category | | --- | --- | --- | --- | | [Xblue-Bluetooth devices finder](https://appshunter.io/ios/app/xblue-bluetooth-devices-finder/id1632902176) | 3.7 (6) | Free | Utilities | | [ScanNet - Network Scanner](https://appshunter.io/ios/app/scannet-network-scanner/id1589765618) | 4.7 (345) | Free | Utilities | | [Wireless Tracker: Find Device](https://appshunter.io/ios/app/wireless-tracker-find-device/id1622517099) | 4.0 (267) | Free | Utilities | | [Found: Bluetooth Finder](https://appshunter.io/ios/app/found-bluetooth-finder/id1574622423) | 4.5 (12) | Free | Utilities | | [iVerify Basic](https://appshunter.io/ios/app/iverify-basic/id1466120520) | 4.6 (2,393) | Free | Utilities | | [iNetTools - Ping,DNS,Port Scan](https://appshunter.io/ios/app/inettools-pingdnsport-scan/id561659975) | 4.6 (5,625) | Free | Utilities | ## Related topics [fold stereo to mono](https://appshunter.io/ios/topics/fold-stereo-to-mono) --- *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 2026-09-02.*