InnoCaption provides real-time captioning of phone conversations for individuals who are deaf or hard of hearing. Our service is free for eligible users in the United States because we are funded by the FCC's Telecommunications Relay Services Fund. InnoCaption empowers you to call anyone, day or night, with fast and accurate real-time captioning. If your hearing loss makes understanding your cell phone calls difficult, our app is the solution for you!

InnoCaption enables you to make or receive a call, speak using your own voice, and see captions of what the other party on the call is saying to you. Our technology gives you the choice between live captioning by either live stenographers or best-in-class automated speech recognition (ASR) software. You can switch between either caption mode before or during a call – the choice is yours! The speed and accuracy of our service ensures you are able to keep up with your phone conversations.

The InnoCaption app is designed to be fully compatible with your mobile phone and tablet. In addition, our DeskView feature allows you to mirror your phone or tablet’s captions onto a computer screen – simply login to our website from your computer’s web browser to access this feature.

The InnoCaption team has developed a full set of features to meet our users’ accessibility needs:

• Use the app like your regular phone dialer - no need to make calls through a relay center
• Choose between captioning from live stenographers or automated speech recognition (ASR) software
• Support for Spanish language captioning when using ASR caption mode
• See captions from your phone mirrored on a computer screen with DeskView - great for video conference calls!
• Built-in spam call filter blocks high risk calls and provides notices for potential spam calls
• Continue to use your personal cell number by combining our caller ID and call forwarding features
• Syncs with your existing contacts
• View and email past call transcripts
• Personalized voicemail with captions
• Call blocking from unwanted numbers
• Make 911 emergency calls with captions*

*911 Calling Advisory: Calling 911 from a landline is the most reliable method of reaching emergency response personnel. Please visit our 911 calling education page to find out more about using the InnoCaption app to access 911:

Cellular data plan or Wi-Fi is required for usage.

FEDERAL LAW PROHIBITS ANYONE BUT REGISTERED USERS WITH HEARING LOSS FROM USING INTERNET PROTOCOL (IP) CAPTIONED TELEPHONES WITH THE CAPTIONS TURNED ON. IP Captioned Telephone Service may use a live operator. The operator generates captions of what the other party to the call says. These captions are then sent to your phone. There is a cost for each minute of captions generated, paid from a federally administered fund.

For more information, visit us at
Please reach out to us at for any assistance

What’s New

Version 2.0.18

- Minor bug fixes and stability improvements

Ratings and Reviews

4.6 out of 5
897 Ratings

897 Ratings

JoEllenNmandyBestFriendsNdog ,

Love this app!

I had gotten a different TTY home phone and app before this one. When I was ready to start using it, the home phone couldn’t be connected to WiFi so I found its app. I worked many hours daily for around a week, each time I thought it was set up, discovered new issues not to be found in the tutorial.
Now THIS app?! Beautiful! It was super easy to set up plus instead of having to call customer support for any issues needing addressed, waiting for long time, you can get on a chat with them immediately. Customer service is excellent, I found this app accidentally when I found I had to use Zoom for a video appointment and was searching for help because I didn’t have anyone to come over to help me understand the doctor. That’s when I found out that this app not only works beautifully with iPhone and iPad, it has a desktop version to enable us to use closed captioning when in a Zoom appointment. I haven’t got to use this with Zoom yet but I foresee no problems with using the desktop version of this with it. I was just so happy after being able to make a few phone calls and also receiving phone calls on this after having my iPhone number forwarded to ring here, I want everyone to know this is by far, the most amazing app for the deaf! ♥️

Developer Response ,

Hi JoEllen, thank you so much for your review! We are thrilled that you have started using InnoCaption on your cell phone and that you are enjoying our latest features. If you think of anything we can do to improve our App, or if you need assistance with DeskView so you can view captions on your computer screen simultaneously, please do not hesitate to reach out to our support team at We look forward to hearing from you!

BBSA001 ,

Unbelievable App

As a person that due to hearing loss has many problems understanding spoken words even in an everyday environment. Add that problem with cell phone communications and it really goes downhill. Especially when talking with people that have high pitch voices. This product is like closed caption for TV except it is extremely fast and accurate with translation of spoken word to text right on your phone screen. It is a game changer for hearing challenged people like myself. I can even talk with people when I can’t hear a word they are saying.

It will also optionally, via a setting, translate English speaking people to provide the text in Spanish. I never know there was anything form an app perspective that could help me with phone conversations and on top of that with no charge for the app or usage charges when it is being used.

As a retired IT veteran of 45 years, I’m pretty tough in handing out reviews. This is the first app I’ve ever given a 5+ rating. If you or any of your friends have hearing problems, whether they use hearing aids (that really don’t do a lot for pitch) or not, this is a must have app. 5+++++++

Developer Response ,

Hello and thank you for this unbelievable review! Our entire team is so happy to learn you are enjoying the InnoCaption app and all the features available. If there is ever anything our engineering team can do to make the InnoCaption app even better for you, please do not hesitate to let us know by emailing us at We look forward to hearing from you!

conejocraig ,

Ménière’s disease

I’ll keep this brief as I have a sick wife at home and I’m on my way to the grocery store to get her some medicine. I’m a realtor. Therefore, as you can guess I’m on the phone all the time. If you know what Ménière’s disease is then you know progressive fluctuating hearing loss is one of the issues with it. Talking on the phone has become increasingly difficult for me. I’ve recently found myself not wanting to accept calls because trying to hear someone is so challenging. I even wear hearing aids so the volume of the conversation is sent directly into them. Still challenging at that. I downloaded this app two days ago. I just got off the phone with s foreign client. His accent has been challenging for me to understand in person and very difficult over the phone. This app saved my relationship with him as I can now communicate normally through it. Thanks for the good work! Well done

Developer Response ,

Hello and thank you so much for taking the time to review our app and for sharing your feedback with us! Our entire team is so happy to know our app is able to help you communicate with people over the phone, even when they have an accent. If there is ever anything we can do to make the InnoCaption app even better for you, please let us know by emailing us at!

App Privacy

The developer, Mezmo Corporation, 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 Collected

The developer does not collect any data from this app.

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.

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