Comparison

GRBASZero vs Speak Out Kids

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

Head to head
About

GRBASZero

This app analyzes voice data to estimate hoarseness based on the GRBAS scale. It utilizes a machine learning model built from data collected at a hospital's otolaryngology department. The app focuses on evaluating the long vowel sound "A".

Highlights
  • Voice data analysis
  • GRBAS scale estimation
  • Machine learning model
  • Hoarseness evaluation
  • Long vowel sound analysis
Read full description

Machine learning is performed based on voice data collected at the Department of Otolaryngology, Tenri Yorozu Hospital, and the generated learning model was built-in this app. When the long vowel sound "A" is uttered, this app displays an estimation based on GRBAS scale, which is an auditory-perceptual evaluation method for hoarseness of the Japan Society of Logopedics and Phoniatrics.

About

Speak Out Kids

This app helps children develop communication skills, literacy, and learn new languages through interactive games and activities. It offers a customizable learning experience with progress tracking and offline printable resources.

Highlights
  • Sentence builder for communication
  • Alphabet and reading mastery
  • Multilingual language learning
  • Educational games for skill development
  • Customizable content with own photos/words
  • Progress tracking dashboard
  • Printable learning materials
Features
Read full description

Give Your Child the Power to Communicate, Learn & Grow. Is your child starting their language journey? Looking for a fun way to accelerate learning, from first words to full sentences? Speak Out Kids is a powerful, all-in-one learning platform designed to make speech development, literacy, and even learning a new language a joyful adventure for EVERY child. Born from a father's mission to help his autistic son, our app was built to overcome the toughest communication challenges. This robust foundation makes it an incredibly effective tool for all children, whether they are neurotypical toddlers, preschoolers, or children with unique learning needs. A COMPLETE LEARNING ECOSYSTEM: ACCELERATE SPEECH & BUILD SENTENCES: Go beyond flashcards! Our unique sentence builder allows kids to combine images and phrases ("I want," "I see") to form real sentences, transforming their ability to express themselves. Perfect for toddlers, speech delays, and AAC users. MASTER READING & ALPHABET (ABC's): From our Alphabet Board to interactive, narrated stories with quizzes, we make literacy exciting. Watch your child's confidence soar as they learn to recognize letters, sound out words, and understand stories. LEARN A NEW LANGUAGE: With support for English, Spanish, Portuguese, German, and more, Speak Out Kids is a fantastic tool for bilingual families or for introducing a child to their first foreign language in a fun, natural way. PLAY & LEARN WITH PURPOSE: Our library of educational games (Memory, Puzzles, "What Sound Is This?") is designed by learning experts to develop crucial skills like memory, motor skills, and comprehension while your child is just having fun. FEATURES THAT PARENTS & THERAPISTS LOVE: - Fully Customizable: Add your own photos, words, and voice to make the app a reflection of your child's world. - Track Real Progress: Our new statistics dashboard provides clear, data-driven insights into your child's learning, perfect for sharing with teachers and therapists. - Take It Offline: Print any card as a PDF to create physical learning tools and activities, reducing screen time. - Always Growing: We constantly add new stories, games, and features to keep the learning journey fresh and exciting. Whether your goal is to support speech development, kickstart literacy, introduce a new language, or simply give your child a fun, educational head start, Speak Out Kids is your partner in learning. Download today and unlock your child's full potential. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

GRBASZero1 screens
Speak Out Kids4 screens

Verdict

The call

The clearest difference is review sentiment: Speak Out Kids at 91% against GRBASZero's 0%. Speak Out Kids also leads on rating (4.5 vs 1.0) and ratings volume (95 vs 1). GRBASZero's advantage is in-app purchases (none vs 2). On price, update cadence, ads and device support 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. Speak Out Kids sells 2 in-app purchases, starting at $2.99 per month. GRBASZero asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Speak Out Kids holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Speak Out Kids has 95 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of GRBASZero's written reviews are positive against 91% of Speak Out Kids's.

UpkeepUpdate frequency

GRBASZero ships an update every 5 weeks, Speak Out Kids every 3 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard5 real differences · 5 level
GRBASZero versus Speak Out Kids: the parameters behind the verdict, then further details
ParameterGRBASZeroSpeak Out Kids
PriceFreeFree
Rating1.0 (1 ratings)4.5 (95 ratings) — better
Positive reviews0.0% of reviews91.3% of reviews — better
Number of ratings195 — better
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size30 MB101 MB
Age rating12+4+
DeveloperENTZeroEmerson Cargnin

Customer experience

GRBASZero

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Speak Out Kids

All ratings89 ratings
Positive88.8%
Neutral6.7%
Negative4.5%
Written reviews23 reviews
Positive91.3%
Neutral4.3%
Negative4.3%

In-app purchases

None

GRBASZero

No in-app purchases

2 purchases

Speak Out Kids

Subscriptions2
  • Monthly Subscription$2.991 Month
  • Annual Subscription$12.991 Year

Questions

Is GRBASZero free?
GRBASZero is free to download, with no in-app purchases.
Is Speak Out Kids free?
Speak Out Kids is free to download, with in-app purchases available.
Which has better reviews, GRBASZero or Speak Out Kids?
Speak Out Kids is rated higher. GRBASZero averages 1.0 out of 5 from 1 ratings, while Speak Out Kids averages 4.5 from 95 ratings.
Do GRBASZero or Speak Out Kids have ads?
Neither GRBASZero nor Speak Out Kids shows ads.
Which is updated more often, GRBASZero or Speak Out Kids?
GRBASZero ships an update every 5 weeks, and Speak Out Kids every 3 weeks. Most recently, GRBASZero was updated on November 3, 2026 and Speak Out Kids on November 4, 2026.

Other comparisons