Comparison

Number Math vs Readability

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

Head to head
About

Number Math

This app helps elementary students practice basic math facts and build number sense through interactive exercises. It offers customizable difficulty levels and engaging features like drag-and-drop to make learning fun and effective for young learners.

Highlights
  • Missing Numbers
  • Before and After
  • Greater Than/Less Than
  • Skip Counting
  • Rounding
  • Ascending Order
  • Drag and Drop interface
Features
Read full description

Number Math is for practicing basic elementary number facts. Its an easy to use and customizable application to enable focused learning that enhanced basic number sense. Some of the salient features are - Missing Numbers - Before After - Greater Than Less Than - Skip Counting - Rounding - Place Numbers in Ascending Order - Randomly generated problem cards - Simple Drag and Drop feature encourages kids to try - 4 different difficulty level - Simple sound effects to provide feedback Though kids can use it with minimal parent supervision, but some supervision and encouragement always helps them gain confidence and motivation. Really suitable for preschoolers, kindergarteners and also for some 1st graders Happy Learning.

About

Readability

This app offers AI-powered reading and comprehension support for children, mimicking one-on-one tutoring. It listens as kids read, provides pronunciation correction, and uses interactive questions to boost critical thinking and vocabulary. Parents can track progress via a dashboard.

Highlights
  • AI-powered reading assistance
  • Real-time pronunciation correction
  • Interactive voice-based comprehension questions
  • Personalized vocabulary lists
  • Parent progress dashboard
  • Grade-level stories and books
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

Number Math4 screens
Readability4 screens

Verdict

The call

The clearest difference is rating: Readability at 4.6 against Number Math's 3.5. Readability also leads on review sentiment (56% vs 17%) and update cadence (fortnightly vs every 26 months). Number Math's advantage is in-app purchases (none vs 2) and iOS requirement (9.1 vs 16.4). On price, 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. Number Math asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Readability holds the better App Store score, 4.6 against 3.5. That said, the two scores are not equally well evidenced: Readability has 25K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 17% of Number Math's written reviews are positive against 56% of Readability's.

UpkeepUpdate frequency

Number Math ships an update every 26 months, Readability fortnightly. The most recent releases landed on October 23, 2026 and November 3, 2026 respectively.

Scorecard8 real differences · 3 level
Number Math versus Readability: the parameters behind the verdict, then further details
ParameterNumber MathReadability
PriceFreeFree
Rating3.5 (2 ratings)4.6 (25K ratings) — better
Positive reviews16.7% of reviews55.7% of reviews — better
Number of ratings225K — better
Update frequencyEvery 26 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank—#148 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.1 — better16.4
Further details — not scored
Size10 MB265 MB
Age rating4+4+
DeveloperPower Math Apps LLCe4site Inc.

Customer experience

Number Math

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews6 reviews
Positive16.7%
Neutral0.0%
Negative83.3%

Readability

All ratings25,308 ratings
Positive90.5%
Neutral4.0%
Negative5.5%
Written reviews386 reviews
Positive55.7%
Neutral9.8%
Negative34.5%

Bugs and requests

Number Math

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

Number Math

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 Number Math free?
Number Math 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, Number Math or Readability?
Readability is rated higher. Number Math averages 3.5 out of 5 from 2 ratings, while Readability averages 4.6 from 25K ratings.
Do Number Math or Readability have ads?
Neither Number Math nor Readability shows ads.
Which is updated more often, Number Math or Readability?
Number Math ships an update every 26 months, and Readability fortnightly. Most recently, Number Math was updated on October 23, 2026 and Readability on November 3, 2026.

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