Comparison

Readability vs Flash Words

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

Head to head
About

Readability

This app uses AI-powered voice technology to provide personalized reading tutoring for children. It listens as kids read aloud, offers pronunciation correction, and assesses comprehension through interactive questions. The app also builds vocabulary and allows parents to track progress.

Highlights
  • AI-powered voice recognition for reading practice
  • Real-time pronunciation correction
  • Interactive voice-based comprehension questions
  • Personalized vocabulary lists
  • Parent dashboard for progress tracking
  • Engaging grade-level stories with illustrations
Features
Read full description

Readability’s award-winning Smart Reading & Comprehension Learning App gives your child the effectiveness of 1-on-1 tutoring. Our breakthrough voice-based technology LISTENS while your child READS, highlighting, and correcting any problem words. Kids from kindergarten to 6th grade will improve their reading, vocabulary, and comprehension skills all in the convenience of a mobile app. IMPROVE READING WITH 1-ON-1 TUTORING Readability prompts your child to read aloud and listens while providing reading help and real-time pronunciation correction as your child reads. If they get stuck, they can tap on the speaker icon to have Readability read the selected passage or word aloud. Readability automatically selects the right reading material for each child to maximize improvement and minimize the reading struggle. Your child will be eager to learn as these fun and educational grade-level stories come to life with bright illustrations. IMPROVE CRITICAL THINKING SKILLS Our industry-first comprehension with Interactive Voice-based Questions & Answers (IVQA™) asks your child questions verbally about the story they just read to improve their critical thinking skills. Your child then is prompted to answer the question verbally to ensure they fully understand what they read. Comprehension is as important as reading fluency, we deliver both in our smart reading app for kids. IMPROVE VOCABULARY Readability makes it easy to learn new words and their meaning with a personalized vocabulary list for your child. Your child can long-press on any word while reading to learn its pronunciation, meaning, and add it to their vocabulary list. Their vocabulary list is neatly organized A-Z and by book to further practice, review, and perfect new or difficult words. SET AND TRACK READING GOALS Set goals and follow your child’s progress with your very own Parent Dashboard detailing what they have read, reading duration, accuracy, comprehension, and speed. It also provides daily and weekly reading reports for accountability that can be shared with a teacher. ENGAGING BOOKS A massive selection of age-appropriate stories and educational works keep kids engaged and learning. Readability is the perfect reading app for kids. Getting started is easy with a 30-day free trial. Just download the app to sign up for your free trial. Cancel anytime. SUBSCRIPTION TERMS To access all app features, please subscribe to the 30-day free trial. Your subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Your account will automatically be charged at the subscription price for renewal, within 24-hours prior to the end of the current billing period. You can manage your subscription and/or turn off auto-renewal by visiting your Account Settings after purchase. • Visit https://www.readabilitytutor.com/payment-policy/ for payment terms • Visit https://www.readabilitytutor.com/terms-of-use/ for terms of use Copyright 2023 Readability

About

Flash Words

Features
Read full description

Practise sight words, spelling lists and tricky words with simple, distraction-free flash cards. Free, ad-free and private. No account required and no data collected. Flash Words helps children build reading confidence through short, focused practice. Parents and teachers can create custom word lists based on schoolwork, homework or each child’s individual needs. Children can hear each word spoken aloud, reveal the answer when they are ready and mark whether they got it right. Words that need more practice are automatically repeated, helping children improve without distracting games, advertisements or overstimulation. Features • Create unlimited custom word lists • Use ready-made common word lists • Hear every word spoken aloud • Reveal each word when the child is ready • Mark each answer as correct or try again • Automatically repeat difficult words • Continue where you left off • Track progress across each word list • Change the background theme • Use the app offline • No advertisements • No account required Flash Words can be used for: • Sight words and high-frequency words • Weekly spelling lists • Phonics and early reading practice • Homework and classroom activities • Homeschooling • Learning support • Speech and language practice Designed for beginning readers in Kindergarten, Prep, Year 1 and Year 2. Short, regular practice helps children become more familiar and confident with the words they are learning.

Screenshots

Readability4 screens
Flash Words4 screens

Verdict

The call

The clearest difference is in-app purchases: Flash Words at none against Readability's 2. Flash Words also leads on update cadence (every 4 days vs fortnightly). Readability's advantage is chart position (#162 vs unranked). On price, ads, device support and iOS requirement 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. Readability sells 2 in-app purchases, starting at $19.99 per month. Flash Words asks for nothing beyond the download.

UpkeepUpdate frequency

Readability ships an update fortnightly, Flash Words every 4 days. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.

Scorecard3 real differences · 8 level
Readability versus Flash Words: the parameters behind the verdict, then further details
ParameterReadabilityFlash Words
PriceFreeFree
Rating4.6 (24K ratings) — better—
Positive reviews55.9% of reviews—
Number of ratings24K — better—
Update frequencyFortnightlyEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
Best chart rank#162 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.1 — better
Further details — not scored
Size282 MB40 MB
Age rating4+4+
Developere4site Inc.Kristina Longmuir

Bugs and requests

Readability

Reported bugs

4 issues
  • App charges for free trial
  • Subscription cancellation issues
  • Inconsistent app behavior
  • Compatibility problems on some devices

Requested features

4 requests
  • More customization options for text and background
  • Improved voice recognition accuracy
  • Expanded book selection
  • Better comprehension testing

Flash Words

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Readability

Subscriptions2
  • Readability Tutor1 Month trial$19.991 Month
  • Readability Tutor Annual1 Month trial$139.991 Year
None

Flash Words

No in-app purchases

Questions

Is Readability free?
Readability is free to download, with in-app purchases available.
Is Flash Words free?
Flash Words is free to download, with no in-app purchases.
Do Readability or Flash Words have ads?
Neither Readability nor Flash Words shows ads.
Which is updated more often, Readability or Flash Words?
Readability ships an update fortnightly, and Flash Words every 4 days. Most recently, Readability was updated on October 2, 2026 and Flash Words on September 29, 2026.

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