Comparison

Flexspeak AAC vs LispApp

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Flexspeak AAC

This app provides augmentative and alternative communication (AAC) for individuals who have difficulty speaking. It offers multilingual support, AI-powered prediction, and extensive customization options to facilitate clear and efficient communication.

Highlights
  • Multilingual support (Spanish, Vietnamese, Nepali, Mandarin)
  • AI prediction for sentence completion
  • Easy vocabulary customization
  • Remote editing and group sharing
  • Extensive image library
  • Seamless auto-sync across devices
Features
Read full description

Experience communication with Flexspeak – the cutting-edge augmentative and alternative communication (AAC) app for people who cannot speak or have difficulty speaking. FREE 30-day trial - includes voice! COMMUNICATE YOUR WAY - Access multiple languages including Spanish, Vietnamese, Nepali, and Mandarin - Use intuitive AI prediction and quick customization features - Select words to create messages and add custom vocabulary with ease POWERFUL FEATURES - Multilingual Support: Switch between languages effortlessly - Remote Editing & Group Sharing: Quickly share folders - AI Prediction: Transform partial phrases into complete sentences with AI - Easy Customization: Personalize your vocabulary to fit your needs - Seamless Auto-Sync: Access your settings across all devices - Extensive Image Library: Express yourself with symbols and photos - In-App Translations: Translate buttons to other languages with one tap DESIGNED FOR DIVERSE NEEDS - Designed for individuals with autism, Down syndrome, cerebral palsy, and non-speaking individuals - User-friendly interface makes communication efficient and accessible Join the growing Flexspeak community and explore new possibilities for self-advocacy, expression, and connection. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

LispApp

This app offers interactive exercises and games to help children and teenagers practice and improve the pronunciation of the /s/ sound. Developed with speech-language pathologists, it follows proven therapeutic methods for effective home practice.

Highlights
  • Interactive /s/ sound exercises
  • Auditory bombardment
  • Listening for /s/ discrimination
  • Oral motor skill practice
  • Shaping /s/ sound production
  • Syllable and word practice
Features
Read full description

Start learning the /s/ sound today with LispApp’s interactive exercises! LispApp is a mobile application designed to support speech therapy and to be used for practice at home. The app has been developed together with American speech-language pathologists. Both the content and structure follow effective methods used in speech therapy for practicing the /s/ sound. LispApp is suitable for children of all ages, from 3 years old up to the teenage years. However, we recommend that an adult and child use LispApp together – this way the adult can support the child when needed, while also spending quality time learning together. The structure of LispApp: Auditory bombardments – First, we learn what the /s/ sound is like. The child listens to many model words where /s/ appears in different positions. Listening for /s/ – Next, the child practices recognizing whether /s/ appears in a word or not. This strengthens awareness of the sound. Oral motor exercises – Then we practice tongue and mouth motor skills, making it possible to produce the /s/ sound at all. These exercises strengthen tongue control and airflow. Making the /s/ sound – Fourth, we start shaping the /s/ sound through the /t/ sound (t → tsss → s). This helps the child find the correct tongue placement and airflow. /s/ in syllables – After that, we move to syllable practice. The child works on using /s/ in simple syllables such as sa, si, su, as, is, us. /s/ in words – The final section is placing /s/ into words in different positions, as well as practicing common consonant blends. The app includes a variety of fun activities for practicing speech. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Flexspeak AAC4 screens
LispApp4 screens

Verdict

The call

The clearest difference is rating: LispApp at 5.0 against Flexspeak AAC's 4.2. LispApp also leads on iOS requirement (13.0 vs 15.1). Flexspeak AAC's advantage is ratings volume (5 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flexspeak AAC sells 3 in-app purchases, starting at $9.99 per month and LispApp sells 1 in-app purchase, starting at $34.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

LispApp holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Flexspeak AAC has 5 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Flexspeak AAC ships an update weekly, LispApp every 11 days. Both last shipped on November 4, 2026.

Scorecard3 real differences · 7 level
Flexspeak AAC versus LispApp: the parameters behind the verdict, then further details
ParameterFlexspeak AACLispApp
PriceFreeFree
Rating4.2 (5 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings5 — better1
Update frequencyWeekly — betterEvery 11 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.113.0 — better
Further details — not scored
Size254 MB145 MB
Age rating12+4+
DeveloperFlexspeakArraTreeni Oy

In-app purchases

3 purchases

Flexspeak AAC

Subscriptions2
  • Monthly subscription$9.991 Month
  • Yearly subscription1 Month trial$99.991 Year
One-time1
  • Lifetime$299.99
1 purchases

LispApp

Subscriptions1
  • LispApp monthly subscription.$34.991 Month

Questions

Is Flexspeak AAC free?
Flexspeak AAC is free to download, with in-app purchases available.
Is LispApp free?
LispApp is free to download, with in-app purchases available.
Which has better reviews, Flexspeak AAC or LispApp?
LispApp is rated higher. Flexspeak AAC averages 4.2 out of 5 from 5 ratings, while LispApp averages 5.0 from 1 ratings.
Do Flexspeak AAC or LispApp have ads?
Neither Flexspeak AAC nor LispApp shows ads.
Which is updated more often, Flexspeak AAC or LispApp?
Flexspeak AAC ships an update weekly, and LispApp every 11 days. Most recently, Flexspeak AAC was updated on November 4, 2026 and LispApp on November 4, 2026.

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