Sono Flex

Sono Flex

By Tobii Dynavox LLC

  • Category: Education
  • Release Date: 2011-10-07
  • Current Version: 2.0.0
  • Adult Rating: 4+
  • File Size: 307.43 MB
  • Developer: Tobii Dynavox LLC
  • Compatibility: Requires iOS 8.0 or later.
Score: 4
From 68 Ratings


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 topic-based vocabulary in a unique and dynamic way - Provides an easy, and highly motivating, start with over 50 pre-made 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 or --- 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



  • New update

    By Juarlenalover
    I want the new update for sono flex add more symbol and new voices
  • Good, but...

    By Albie125
    I like most things about this AAC app, including simplicity. However, there are a few things that keep it from being 4-5 stars. First...the voice! The choices are awful...artificial and robotic. The child choices are especially awkward, which surprises me knowing a majority of this app's users are children. Second, there is no way to change the positioning of the context buttons. This is not functional for individuals with limited fine motor control who need frequently used buttons near the bottom or sides. You are able to change position of the word buttons within a context, but only in top to bottom order. This is completely contrary to the written word and speech which flows left to right, not top to bottom. Please consider changing these two big items. Otherwise, not sure it is worth $100 as is.
  • PLEASE SYNC between devices

    By Awe
    Great app! It would really be nice if you could sync between devices. My son has really learned a lot on this app, he has a ipod that is portable, however, we also have an iPad and my iPhone. I would like them all to synch in case depleted battery, broken device etc. I just want to make sure that communication that most people take for granted is there for him when he needs it Thanks again, I hope to see the update soon
  • Voices

    By Nvadvocate
    I'm an AAC expert, because I HAVE to be. Cannot figure out how to change the irritating voice it comes with. Could give a higherrating for quickfires if I could. Help.
  • Julie Vesely

    By Julie Vesely
    Hi to the makers of this App, it would be nice if you make an update and you have the option to change the pitch of the voice, also have a much slower option when you scroll from page to page
  • Needs "HIDE" feature

    By SLP-AAC Consultant
    As an SLP and AAC Consultant, I do like the category and core word approach of the app for some of my youngest AAC users. However, the app in it's current state does not allow one to "hide" vocabulary or categories for quick access in the future. The app re-shuffles everything to the top, which is also frustrating for students who rely on motor-memory for button locations. The movement to the top also does not benefit AAC users who require a bit more space in-between buttons due to access issues. Nice app, but needs work to benefit most younger AAC users. An update with these features would be much appreciated!
  • Ms

    By Toddangel
    Excellent augmentative communication app. My only criticism is that it is difficult to edit and customize pages. It would be really nice if items on each page could be easily added, deleted or moved right on the page instead of going to a different menu and editing. Touching the icon and being able to move it around the page would be an awesome addition. The students I have used this app with like it. June
  • Good App thanks for fixing voice over

    By KayCee060810
    Love this app and thanks for fixing the voice over app. Now onto some heavy duty programming. Hoping to be able to link & layer pages but haven't tried yet.
  • on the right track!

    By MagSLP
    I agree with all the positives previous reviewers list, and I agree that the two most important upgrades needed are to the choice of having each key speak as it is selected and an option to turn off editing. The student I am using this app with has already accidentally deleted things and he is not learning as quickly as he could because he can't hear what he has selected until he selects the message window. But thank you for all the work and thought you have put in to developing this app. It will be a very powerful tool with the upgrades.
  • Great AAC app!

    By Dinkrea
    I am the mother of a special needs 3 year old with neurofibromatosis, apraxia of speech and suspected aspberger's. He is mostly non-verbal due. However, after using SonoFlex Lite for a little while, we noticed that he was extremely interested in the app. Unlike other AAC apps that we tried, this one held his interests. Now that we have the full version, he's actually been communicating with us. It's only his name and age right now, but it's more than we ever though we'd get. SonoFlex is so easy to use, and the ability to change the expressions to use familiar pictures is amazing. Thanks!