Comparison

Dekodiphukan vs Speech Therapy 4

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

Head to head
About

Dekodiphukan

This app introduces children to the 44 sounds of the English language through a rhyming storybook. It's part of a comprehensive reading and writing curriculum designed for beginning readers and those who have struggled with literacy. The app offers audio support for pronunciation and repeated reading.

Highlights
  • Rhyming storybook format
  • Introduces 44 English phonemes
  • Connects sounds to pictures
  • Audio reading support
  • Part of a comprehensive curriculum
  • No ads
Features
Read full description

Center for Innovation in Education Dekodiphukan Storybook Dekodiphukan Description A children’s storybook written in rhyme. The first of the fourteen apps that comprise the Baratta-Lorton Reading Program. The Reading Program is a reading and writing curriculum for beginning readers and any child who has already experienced difficulty in learning to read. 99% unique – 100% effective - 100% free Background for the fourteen apps The Baratta-Lorton Reading Program also known as Dekodiphukan (pronounced decode if you can) was developed by the Center for Innovation in Education whose many other offerings include Mathematics Their Way, the first non-traditional math curriculum adopted in by the State of California. Dekodiphukan has been in use in classrooms across the United States and Canada since 1985. The Program has been used to teach thousands of children to read and to write regardless of background or supposed lack of reading readiness. To date, no child using the program in a classroom setting has ever failed to learn to read or to write. This Dekodiphukan reading and writing curriculum is now a series of fourteen apps plus a parent-guide for the iPad that, within a period of six months to a year (or occasionally a bit longer for some special needs children), will enable every child using it to read and to write. Reading with enjoyment. Writing creatively. Dekodiphukan is a full fledged curriculum. It is a set of specific learning activities, not a set of games. The curriculum’s fourteen apps are all free with no ads - popup or otherwise - included. While the apps may be downloaded all at once and stored in a folder on the iPad, no more than two or three of the apps are used at any one time by the child. Dekodiphukan Storybook The first of the Fourteen Apps Forty-four sounds or phonemes form the building blocks for every word spoken in English. The Dekodiphukan Storybook, written in rhyme, introduces children to these forty-four sounds and connects each sound to a picture that represents that sound. It is easier to correctly identify the sound of a phoneme when the phoneme is at the end of a word.  Rhyming is used to facilitate correct sound-phoneme pronunciation. The events in the storybook provide the rationale for why each of forty-four sound pictures represents the particular sounds that it does. The Dekodiphukan Storybook is meant to be read initially by the parent to the child.  A play button provides an audio reading for each page to assist parents who are unsure of pronunciations, or who prefer to listen along with their child as the story is being read.  The audio reading of each page also permits the child to “read” and “reread” the storybook as often as he or she wishes, without waiting for an adult reader. Dekodiphukan STORYBOOK A children’s storybook written in rhyme Also available in book form through the Center’s website Introduces the 44 sounds of the English language Uses rhyme for clarity in sound identification To be read the first time by the parent to the child Parents unclear about pronouncements may play audios Child uses audio play buttons for subsequent readings Downloadable sound pictures for wall posting Downloadable Sound Summary for Parents

About

Speech Therapy 4

This app helps children practice saying complex words through interactive video exercises and AI-powered feedback. It uses scientifically proven video modeling to engage mirror neurons and rewards improvements with extended playtime.

Highlights
  • AI-powered pronunciation analysis
  • 1000+ prerecorded video exercises
  • Reward system for improved articulation
  • Voice-activated interactive learning
  • Scientifically proven video modeling
  • Progressive learning steps
Features
Read full description

The developer of the only clinically-validated language therapy application MITA that was downloaded by over 3 million families, brings you a series of Speech Therapy apps: Speech Therapy Step 1 – Preverbal exercises Speech Therapy Step 2 – Learn to sequence sounds Speech Therapy Step 3 – Learn to say 500+ words Speech Therapy Step 4 – Learn to say complex words Speech Therapy Step 5 – Record your own model words and exercise articulation Speech Therapy Step 4 is for children who already learned many words and want to exercise on their articulation. HOW IT WORKS? Speech Therapy Step 4 uses 1000+ prerecorded video exercises. These videos encourage children to mirror words’ pronunciation. A proprietary AI algorithm measures similarity between model words and children’s vocalizations. Improvements are rewarded with reinforcers and PlayTime. This technique was demonstrated to improve speech production in toddlers, late talkers (speech delay), children with Apraxia of Speech, Stuttering, Autism, ADHD, Down Syndrome, Sensory Processing Disorder, Dysarthria. Video exercises are followed by a PlayTime. Improvements in performance are rewarded with reinforcers and a longer PlayTime. In order to achieve a longer PlayTime, children try to improve their articulation. In this way the app works autonomously all the time encouraging children to improve articulation. LEARN WITH SPEECH THERAPY STEP 4 - The only speech therapy app that rewards your child proportionally to the improvement of their articulation. - Uses scientifically proven video modeling for effective speech development. - Voice-activated functionality provides a fun, interactive learning experience. - The app basic version is completely FREE! - No ads. SCIENTIFICALLY-PROVEN LEARNING TECHNIQUES Speech Therapy Step 4 uses video modeling to create an immersive learning environment. When children watch model videos in real time, their MIRROR NEURONS are engaged. This is scientifically proven to be highly effective in speech development. FROM THE DEVELOPERS OF THE CLINICALLY-VALIDATED LANGUAGE THERAPY APPLICATION MITA Speech Therapy Step 4 is developed by Dr. A. Vyshedskiy, a neuroscientist from Boston University; R. Dunn, a Harvard-educated early-child-development specialist; MIT-educated, J. Elgart and a group of award-winning artists and developers working alongside experienced therapists.

Screenshots

Speech Therapy 44 screens

Verdict

The call

The clearest difference is review sentiment: Dekodiphukan at 100% against Speech Therapy 4's 0%. Dekodiphukan also leads on rating (4.2 vs 3.4) and in-app purchases (none vs 1). Speech Therapy 4's advantage is update cadence (every 2 months vs every 35 months) and device support (3 vs 1). On ratings volume and ads 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

ReceptionRating · Positive reviews · Number of ratings

Dekodiphukan holds the better App Store score, 4.2 against 3.4. Both are backed by a comparable volume of ratings — 9 and 8 respectively. Written reviews point the same way: 100% of Dekodiphukan's written reviews are positive against 0% of Speech Therapy 4's.

UpkeepUpdate frequency

Dekodiphukan ships an update every 35 months, Speech Therapy 4 every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard7 real differences · 3 level
Dekodiphukan versus Speech Therapy 4: the parameters behind the verdict, then further details
ParameterDekodiphukanSpeech Therapy 4
Price—Free — better
Rating4.2 (9 ratings) — better3.4 (8 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings9 — better8
Update frequencyEvery 35 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPadiPhone, iPad, iPod — better
Requires iOS15.612.0 — better
Further details — not scored
Size84 MB170 MB
Age rating4+4+
DeveloperBob Baratta-LortonImagiRation LLC

Customer experience

Dekodiphukan

All ratings9 ratings
Positive66.7%
Neutral22.2%
Negative11.1%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Speech Therapy 4

All ratings8 ratings
Positive50.0%
Neutral12.5%
Negative37.5%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Dekodiphukan

No in-app purchases

1 purchases

Speech Therapy 4

One-time1
  • Speech Therapy Step 4 Lifetime$29.99

Questions

Is Dekodiphukan free?
Pricing for Dekodiphukan is not currently listed on the App Store.
Is Speech Therapy 4 free?
Speech Therapy 4 is free to download, with in-app purchases available.
Which has better reviews, Dekodiphukan or Speech Therapy 4?
Dekodiphukan is rated higher. Dekodiphukan averages 4.2 out of 5 from 9 ratings, while Speech Therapy 4 averages 3.4 from 8 ratings.
Do Dekodiphukan or Speech Therapy 4 have ads?
Neither Dekodiphukan nor Speech Therapy 4 shows ads.
Which is updated more often, Dekodiphukan or Speech Therapy 4?
Dekodiphukan ships an update every 35 months, and Speech Therapy 4 every 2 months. Most recently, Dekodiphukan was updated on October 23, 2026 and Speech Therapy 4 on October 24, 2026.

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