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

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 1.17.0

The update includes improvements to stability and connectivity.

Ratings and Reviews

2.4 out of 5
1.9K Ratings

1.9K Ratings

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!!!

EricBandt ,

Fine hardware, substandard app

I’ve been using the app for about a year now, because I have to. Yes, I could push the buttons on the earpieces, but I can’t tweak the equalizer that way. Plus, counting beeps is a pretty slipshod way of tracking which program is which.

But the app. It’s the connectivity that’s the issue. I don’t remember the last time I opened the app and the hearing aids just connected. It doesn’t happen. Open the app, wait a bit. Close the app. Reopen. Usually, that does it, but not always. Sometimes, it’s close the app, disconnect Bluetooth, wait a bit, reconnect Bluetooth, try the app again. Maybe twice more. I have to start futzing with the app five minutes before I get on a call just to be sure my settings will be right and that I’ll actually be able to hear.

Hopefully the hardware has a number of good years left, but when the time comes for yet another set, if the app hasn’t improved exponentially, I’ll be switching brands. Perhaps the app developers think of this like a bad solitaire game that you can delete if you don’t care for it, but this app impacts my day to day ability to function in the world. And it impacts where thousands of dollars in future revenue will go. It’s fairly inexcusable that it’s so poor.

Developer Response ,

Hey Eric, thankyou for your feedback and I'm sorry to hear of the issues you sometimes encounter with connecting hearing aids. Some tips that may help improve connectivity: please ensure you're using the latest app version and latest iOS. Ensure location services are on, and the app can connect them. Connectivity can be weakened when the phone battery is very low. Please let me know if the problem persists.

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.

App Privacy

The developer, ReSound, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Health & Fitness
  • User Content
  • Identifiers
  • Usage Data
  • Sensitive Info
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

More By This Developer

You May Also Like