Comparison

SightWords Pro vs Readability

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

Head to head
About

SightWords Pro

This app helps young learners master essential sight words, crucial for reading comprehension. It offers over 1,600 words from various lists, customizable flashcards, and custom pronunciations to support structured learning or quick study sessions.

Highlights
  • Over 1,600 essential sight words
  • Customizable word lists
  • Record custom pronunciations
  • Mark flash cards with stars/flags
  • Shake to shuffle words
  • American-English pronunciations
Features
Read full description

***** 24x7digital's SightWords app has been featured as an iTunes App Store Staff Pick! Help your young learner master the most frequently used words in the English language! A child who can recognize just 8 of 10 words in a sentence can typically understand its meaning! "Sight words" often cannot be illustrated via simple pictures or sounded out according to regular phonetic decoding rules, thus they need to be learned and recognized "on sight". Our SightWords app is a handy way to encourage a child's mastery of their sight words either as part of a structured reading program at school, or as an impromptu study session when standing in line at the grocery store. SightWords Pro contains a selection of over 1,600+ sight words which comprises up to 85% of the text in a child's early reading materials -- comprehensively compiled from Dolch, Fry, Pinnell-Fountas, UK, and many other high-frequency word lists. Choose a pre-defined flash card word list, or build and save custom flash card lists to match what is taught in the classroom. Add custom words and record your own pronunciations. Mark flash cards with stars or flags. Flash cards respond to swipes and taps. Shake your device to shuffle the words. Beautiful voice-pronunciations for all included words. FEATURES: • Over 1,600+ essential sight words • Upper and lower-case alphabet, numbers 0-100, colors, shapes, animals, months • Beautifully recorded American-English pronunciations for all words • Words organized by number of letters • Customizable word lists with copy/paste • Add your own words • Record your own pronunciations • Simple textual editing of word lists • Export your custom word lists as text • Mark flash cards with stars or flags • Flash cards respond to swipes and taps • Shake to shuffle words • In-app Help documentation • Universal app optimized for iPhone, iPod touch, and iPad TRY OUR OTHER APPS: TeachMe: Toddler, TeachMe: Kindergarten, TeachMe: 1st Grade, TeachMe: 2nd Grade, TeachMe: 3rd Grade, TeachMe: Math Facts. CONTACT US: Please do not hesitate to contact us at support@24x7digital.com

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

Screenshots

SightWords Pro4 screens
Readability4 screens

Verdict

The call

The clearest difference is price: Readability at Free against SightWords Pro's $0.99. Readability also leads on rating (4.6 vs 3.9) and update cadence (fortnightly vs every 4 months). SightWords Pro's advantage is in-app purchases (none vs 2) and review sentiment (76% vs 56%). On 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

Readability is free to download; SightWords Pro costs $0.99 up front. Readability sells 2 in-app purchases, starting at $19.99 per month. SightWords Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Readability holds the better App Store score, 4.6 against 3.9. That said, the two scores are not equally well evidenced: Readability has 25K ratings behind it against 11, so its average is the more settled of the two. Written reviews complicate that: 76% of SightWords Pro's written reviews are positive against 56% of Readability's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

SightWords Pro ships an update every 4 months, Readability fortnightly. The most recent releases landed on October 16, 2026 and October 18, 2026 respectively.

Scorecard9 real differences · 2 level
SightWords Pro versus Readability: the parameters behind the verdict, then further details
ParameterSightWords ProReadability
Price$0.99Free — better
Rating3.9 (11 ratings)4.6 (25K ratings) — better
Positive reviews76.0% of reviews — better55.6% of reviews
Number of ratings1125K — better
Update frequencyEvery 4 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid — betterSubscription
Best chart rank—#164 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better16.4
Further details — not scored
Size34 MB282 MB
Age rating4+4+
Developer24x7digital LLCe4site Inc.

Customer experience

SightWords Pro

All ratings11 ratings
Positive63.6%
Neutral9.1%
Negative27.3%
Written reviews50 reviews
Positive76.0%
Neutral6.0%
Negative18.0%

Readability

All ratings24,505 ratings
Positive90.5%
Neutral4.0%
Negative5.5%
Written reviews374 reviews
Positive55.6%
Neutral9.6%
Negative34.8%

Bugs and requests

SightWords Pro

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

SightWords Pro

No in-app purchases

2 purchases

Readability

Subscriptions2
  • Readability Tutor1 Month trial$19.991 Month
  • Readability Tutor Annual1 Month trial$139.991 Year

Questions

Is SightWords Pro free?
SightWords Pro costs $0.99, with no in-app purchases.
Is Readability free?
Readability is free to download, with in-app purchases available.
Which has better reviews, SightWords Pro or Readability?
Readability is rated higher. SightWords Pro averages 3.9 out of 5 from 11 ratings, while Readability averages 4.6 from 25K ratings.
Do SightWords Pro or Readability have ads?
Neither SightWords Pro nor Readability shows ads.
Which is updated more often, SightWords Pro or Readability?
SightWords Pro ships an update every 4 months, and Readability fortnightly. Most recently, SightWords Pro was updated on October 16, 2026 and Readability on October 18, 2026.

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