Sono Flex iOS
Sono Flex icon

Sono Flex

by Tobii Technology

Price: $99.99

Tobii Sono Flex is an easy to use AAC vocabulary app that turns symbols into clear speech. It offers language to nonverbal users who are not yet in full control of literacy.
Sono Flex combines the benefits of structure and flexibility, providing a framework for language development, quickly matching individual and situational communication needs.
Tobii Sono Flex has been designed to be easy to operate and easy for SLPs, teachers, parents, caregivers or other communication partners to setup and customize.

  • Version and pricing

Tobii Sono Flex is a universal application available for iPhone, iPod and iPad. Users need only to buy the application once to run it on either device.
Tobii Sono Flex is also available in a slightly limited, but fully functioning evaluation version called Tobii Sono Flex Lite.
Educational institutions are eligible for a 50% Educational Discounts through Apple’s Volume Licensing Program for Education when buying more than 20 licenses (currently only available in the USA). Please contact your local Tobii representative for more information.

  • Some of the features of Tobii Sono Flex


  • Combines core and topicbased vocabulary in a unique and dynamic way
  • Provides an easy, and highly motivating, start with over 50 premade context vocabularies
  • Comes with more than 11,000 SymbolStix® symbols
  • Use the camera and photo albums of the iPhone or iPad to create your own symbols
  • Comes with 5 US English, high quality Acapela voices; one boy, one girl, two women and one male voice.
  • Offers a solid structure to build up a large common vocabulary and enables versatile communication
  • Great flexibility in tailoring the vocabulary to individual and situational needs
  • Develop within Tobii Sono Flex, into other Sono Suite products or even switch hardware platforms
  • Tobii Sono Flex is available for iPhone, iPod, iPad and on regular PCs and dedicated speech devices running Tobii Communicator.

Read more on www.tobiisonoflex.com or www.tobii.com

  • Read what others say about Sono Flex


"Awesome, awesome, awesome! I wonder why it hasn’t been developed before. It is great to have the situational modules at hand so easily. This is just perfect for us to prepare sessions with clients with a minimum of time consumption. It is really nice that you have chosen very interactive and playful contexts that are age independent."
Alycia Berg, MS, CCC-SLP, Boston Children’s Hospital

"I have to say, I really like Sono Flex. I believe that the control that a user has over it is going to be very helpful and prove to be successful over other currently available products where one can just flip through screens without having access to a full communication system that supports interaction.
I really love the Context-based pages. It is great that you include phrases in these as well for quick interactions that are specific to the context-based pages. Glad to see About Me as a context page.
The way you can swap out context-based pages is really brilliant and helps to expand the communication opportunities without increasing the navigation demands."
Judy Lariviere, M.Ed., OTR/L, Communication Specialist, Rett Clinic, Oakland Children’s Hospital

"Looks good. I like the way the vocab is laid out and you can change one bottom bar it’s possibly the fastest way of changing vocab I have seen."
Will Wade, Lead Occupational Therapist at Kent Communication and Assistive Technology Service, Researcher at Oxford Brookes University, Operator of Apps for AAC website

"I love the vocabulary and the mix of core words and situations.
What I like: Layout of pages; no vertical scroll; grammar feature; situations, situations, situations. Editing is very different, but once I got used to it I liked it (I like to see the whole page as a list, that is cool)."
Kate Ahern, M.S.Ed., AT Specialist and Operator of ‘Teaching Learners with Multiple Special Needs’ Blog

What's new in version 1.0.2

- The user is now able to delete vocabulary history entries from the History page. Users of the full version will have the option to turn on/off the History feature in the Settings section. - Updated the User's Manual accordingly. - Various issue corrections and improvements.

Rank in top paid apps

Ranking - Apps (iPhone) - United States
  • Sono Flex is a highly rated app with 4.5 stars.

App Updates (View More)

  • Release v1.0.2 Oct 7, 2011

Sono Flex App Details

Sono Flex is an application developed by Tobii Technology and released on iOS. The app is compatible with iOS or later on the following devices: and or newer.

Below are the links to download the app on iOS. To download the app for Android, click here.

Developer site: Support

Quick Details

Current Version: 1.0.2
File Size: 240Mb
Genre: Education
Publisher: Tobii Technology
Content Rating: 4+
Users Rating: 4.50 (4 reviews)
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Sono Flex Reviews

New update
Rated 5 out of 5
By Juarlenalover on November 19, 2015
I want the new update for sono flex add more symbol and new voices
Good, but...
Rated 3 out of 5
By Albie125 on August 13, 2015
I like most things about this AAC app, including simplicity. However, there are a few things that keep it from...
PLEASE SYNC between devices
Rated 4 out of 5
on September 20, 2014
Great app! It would really be nice if you could sync between devices. My son has really learned a lot...
Voices
Rated 3 out of 5
on February 26, 2014
I'm an AAC expert, because I HAVE to be. Cannot figure out how to change the irritating voice it comes...
Sync please between devices
Rated 4 out of 5
on May 26, 2013
Great app! It would really be nice if you could sync between devices. My son has really learned a lot...
Needs "HIDE" feature
Rated 2 out of 5
on February 25, 2013
As an SLP and AAC Consultant, I do like the category and core word approach of the app for some...
Julie Vesely
Rated 5 out of 5
on October 21, 2012
when will you have an update that you can slow down the pitch of this program, that is the only...

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