Comparison

iSpellBetter vs Readability

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

Head to head
About

iSpellBetter

This educational game makes spelling practice fun and challenging with increasingly difficult word puzzles. It helps users improve their general spelling skills by tapping into their natural ability to form and retrieve visual images of words. The app features adjustable difficulty and power-ups for strategic players.

Highlights
  • Challenging word puzzles
  • Adjustable difficulty modes
  • Power-up system
  • Visual word image retrieval
  • Customizable word lists
  • Upside-down and backwards words
Features
Read full description

Completely updated with a fresh, new look, our iOS 11 version of iSpellBetter reinvents the educational game genre. You’ll believe it when you play it. Like all compelling video games, it is great fun, with increasingly challenging levels, adjustable difficulty modes and delightful surprises for the determined, strategic player. Amazingly, at the same time, you will become a better speller, as you vanquish words that are not just right-side-up, but once you get to Level 4, upside-down, backwards, plus both upside-down and backwards! You had better earn and save your power-ups, since you’re sure to need them. It’s not just practice or a test of what you already know… no letter scramble disguised as a game. Rather, our straightforward and engaging approach taps your natural capacity to form, hold and retrieve visual images. You’ll not only easily and enjoyably learn the words you encounter in the game – including your own word lists, if you choose – you’ll actually become a much better speller in general.

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

iSpellBetter4 screens
Readability4 screens

Verdict

The call

The clearest difference is rating: Readability at 4.6 against iSpellBetter's 3.3. Readability also leads on update cadence (fortnightly vs every 21 months) and ratings volume (25K vs 7). iSpellBetter's advantage is in-app purchases (none vs 2) and iOS requirement (8.0 vs 16.4). On price, review sentiment, 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. Readability sells 2 in-app purchases, starting at $19.99 per month. iSpellBetter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Readability holds the better App Store score, 4.6 against 3.3. That said, the two scores are not equally well evidenced: Readability has 25K ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 60% of iSpellBetter'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

iSpellBetter ships an update every 21 months, Readability fortnightly. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.

Scorecard7 real differences · 4 level
iSpellBetter versus Readability: the parameters behind the verdict, then further details
ParameteriSpellBetterReadability
PriceFreeFree
Rating3.3 (7 ratings)4.6 (25K ratings) — better
Positive reviews60.0% of reviews — better55.6% of reviews
Number of ratings725K — better
Update frequencyEvery 21 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
Best chart rank—#172 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS8.0 — better16.4
Further details — not scored
Size13 MB282 MB
Age rating4+4+
DeveloperNext Learning LLCe4site Inc.

Customer experience

iSpellBetter

All ratings7 ratings
Positive57.1%
Neutral0.0%
Negative42.9%
Written reviews15 reviews
Positive60.0%
Neutral6.7%
Negative33.3%

Readability

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

Bugs and requests

iSpellBetter

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

iSpellBetter

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 iSpellBetter free?
iSpellBetter is free to download, with no in-app purchases.
Is Readability free?
Readability is free to download, with in-app purchases available.
Which has better reviews, iSpellBetter or Readability?
Readability is rated higher. iSpellBetter averages 3.3 out of 5 from 7 ratings, while Readability averages 4.6 from 25K ratings.
Do iSpellBetter or Readability have ads?
Neither iSpellBetter nor Readability shows ads.
Which is updated more often, iSpellBetter or Readability?
iSpellBetter ships an update every 21 months, and Readability fortnightly. Most recently, iSpellBetter was updated on October 6, 2026 and Readability on October 17, 2026.

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