The ReSound Smart 3D™ app is compatible with the following hearing aids:
• ReSound LiNX Quattro™
• ReSound LiNX 3D™
• ReSound ENZO 3D™
• ReSound ENZO Q™

The ReSound Smart 3D app lets you control your hearing aids directly from your mobile device. You can change programs, and make simple or more advanced sound adjustments and save them as favorites. The app helps you learn what you can do and how to do it. It can even help you find your hearing aids if you lose them. Last, but not least, you can have your hearing care professional update your hearing aid programs and send you new hearing aid software without taking a trip to the clinic.

Notes: Please contact your local ReSound representative for product and feature availability in your market. We recommend that the hearing aids run the latest software version. If in doubt, please contact your hearing care professional.

ReSound Smart 3D mobile device compatibility:
Please consult the ReSound app website for up-to-date compatibility information:

Use the ReSound Smart 3D app to:
• Enjoy optimization anywhere with ReSound Assist: Request help with your hearing aid settings from your hearing care professional and receive new settings and software updates.

And use these direct control and personalization options:
• Adjust volume settings on your hearing aids
• Mute your hearing aids
• Adjust volume of your optionally acquired ReSound streaming accessories
• Adjust speech focus as well as noise and wind-noise levels with Sound Enhancer (feature availability depends on your hearing aid model and the fitting by your hearing care professional)
• Change manual and streamer programs
• Edit and personalize program names
• Adjust treble, middle and bass tones to your preferences
• Save your preferred settings as a Favorite – you can even tag to a location
• Monitor the battery status of your rechargeable hearing aids
• Help locate lost or misplaced hearing aids
• Tinnitus manager: Adjust sound variation and frequency of the Tinnitus Sound Generator. Select Nature Sounds (feature availability depends on your hearing aid model and the fitting by your hearing care professional)

For more information please visit or the support site via the link in the app store.

What’s New

Version 1.7.0

The app now supports video-calls with your HCP for remote finetuning of your hearing aid settings (please ask your hearing care professional for availability).

We have introduced support for new hearing aid form factors and solved several defects.

Ratings and Reviews

2.4 out of 5
1.3K Ratings

1.3K Ratings

JohnnyMB50 ,

Phone pairing makes a big difference

My app works great unless I don’t let the phone have enough time to pair to the hearing aids. If I pair the hearing aids to my phone too quickly, then the pairing isn’t strong enough for the phone to stream reliably or connect/work correctly with this app. I looked in the User Guide to my hearing aids though and when I followed the instruction for pairing (two minute pair) to the phone, I never have problems. It turns out that the pairing isn’t complete when I just see the hearing aids start to show up on the screen, that’s just the start of the pairing process, so Mfi/hearing aid pairing is not like regular Bluetooth connections on my phone. This app is so fantastic because it allows me to control my hearing aids more discretely than touching the hearing aids themselves. I love the ability to create “favorite” programs on my own, and have them geotagged so my hearing aids automatically switch to my favorite program. Thanks to this app, I also found my hearing aids once when I thought I completely lost them. My audiologist can even adjust hearing aids remotely when I can’t get in to see him! Overall this app has been such a great tool for me when I do the hearing aid pairing correctly to the the phone, otherwise I can have weird issues and connection problems with it.

Jimsanta ,

Annoying Updated version!!!

Update on what I posted last week. Once again, after several problem-free days, my iPhone found and connected to my hearing aids, but my Smart3D app simply wasn’t up to the challenge! So I can use the phone to select either All Around or Restaurant, but I have no way to choose the Speech Clarity profile contained within either of those two, and it is the Speech Clarity profile that makes it worth HAVING these hearing aids! So, another half hour wasted, disconnecting and reconnecting the hearing aids, shutting and restarting my phone, deleting and reinstalling the 3D app, and repeating those things just in a different sequence. I guess I’ll just have to wait until tomorrow and HOPE that things will be different!!!

Ever since I downloaded the latest update maybe 2 weeks ago, after having extremely few problems for the past full year, my experience with app has been all downhill. I’ve had to “accept” the terms of the consent agreement almost every day, and on half those days I got the message “Ooops, something went wrong. Contact your provider”.
In addition, although my iPhone instantly “finds” my hearing aids every morning, the app doesn’t connect with them very often, leaving me to depend on the more limited controls of the iPhone.
I repeat, these are all NEW daily problems. Ever since I got my hearing aids and began using the app, I had been showing off its ease of use and capabilities to all my friends. But alas, not any more!!!

Luv FPGAs ,

Toggle ‘Demo Mode’ instead of reloading the app!

Instead of reloading the app multiple times, I toggle ‘Demo Mode’ ON then OFF to fix the “hearing aides not found” problem. I am running iOS 13.3.1 and very seldom lose the Bluetooth hardware connection it’s self, but the app connection does get lost several times a day. Toggling the demo mode ALWAYS cures it for me!!!

For those that recently updated the Resound Smart 3D app and has been plagued with the persistent red exclamation mark, I got it to go away on my iPhone 6S by tapping on the lower right ‘More’ selection and then turn on ‘Demo mode’. Now select the ‘My Resound’ and you will see what the exclamation marks are trying to tell you. I suspect everyone is going to have slightly different reasons, just tap on each one to open a dialogue screen with a brief description and decide for yourself if you want it to perform the action. After you are done browsing the reasons to make the red exclamations disappear, go back to ‘More’ and turn off ‘Demo mode’ to re-enable controlling your hearing aids. Note, one of the items might be to update your hearing aids themselves, do this at your own risk! Don’t blame me if things don’t work like they use to, or differently, or what ever. I’m just the messenger!

Developer Response ,

Hey Luv, thanyou for sharing these great tips. You're exactly right. The magic Demo mode toggle resolves almost all issues for our customers.


GN Resound A/S
280.7 MB

Requires iOS 10.0 and watchOS 5.0 or later. Compatible with iPhone 5S, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPad Air, iPad Air Wi‑Fi + Cellular, iPad mini 2, iPad mini 2 Wi‑Fi + Cellular, iPad Air 2, iPad Air 2 Wi‑Fi + Cellular, iPad mini 3, iPad mini 3 Wi‑Fi + Cellular, iPad mini 4, iPad mini 4 Wi‑Fi + Cellular, iPad Pro (12.9‑inch), iPad Pro (12.9‑inch) Wi-Fi + Cellular, iPad Pro (9.7‑inch), iPad Pro (9.7‑inch) Wi‑Fi + Cellular, iPad (5th generation), iPad (5th generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (2nd generation), iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (10.5‑inch), iPad Pro (10.5‑inch) Wi‑Fi + Cellular, iPad (6th generation), iPad Wi‑Fi + Cellular (6th generation), iPad Pro (11‑inch), iPad Pro (11‑inch) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (3rd generation), iPad Pro (12.9‑inch) (3rd generation) Wi‑Fi + Cellular, iPad mini (5th generation), iPad mini (5th generation) Wi‑Fi + Cellular, iPad Air (3rd generation), iPad Air (3rd generation) Wi‑Fi + Cellular, iPad (7th generation), iPad (7th generation) Wi‑Fi + Cellular, iPad Pro (11‑inch) (2nd generation), iPad Pro (11‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (4th generation), iPad Pro (12.9‑inch) (4th generation) Wi‑Fi + Cellular, and iPod touch.


English, Arabic, Bulgarian, Czech, Danish, Dutch, Estonian, Finnish, French, German, Greek, Hebrew, Hungarian, Italian, Japanese, Korean, Lithuanian, Macedonian, Norwegian Bokmål, Persian, Polish, Portuguese, Romanian, Russian, Serbian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Thai, Traditional Chinese, Turkish

Age Rating
This app may use your location even when it isn't open, which can decrease battery life.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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