# Number Math vs Readability

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.

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.

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.

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

## The numbers

| Metric | Number Math | Readability |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/number-math-number-sense/id431475100/reviews) | **[4.6 (25K ratings)](https://appshunter.io/ios/app/readability-learn-to-read/id1477213383/reviews)** |
| Number of ratings | 2 | **25K** |
| Positive reviews | 16.7% of reviews | **55.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 26 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#157** |
| Size | 10 MB | 265 MB |
| Requires iOS | **9.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Power Math Apps LLC](https://appshunter.io/developer/401263763) | [e4site Inc.](https://appshunter.io/developer/1477213382) |

## What reviewers say

### Number Math

[App page](https://appshunter.io/ios/app/number-math-number-sense/id431475100)

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:** macOS Compatibility

**In-app purchases:** none


### Readability

[App page](https://appshunter.io/ios/app/readability-learn-to-read/id1477213383)

**Currently charting:** #157 Top Grossing · Education (US App Store)

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:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Readability Tutor | $19.99 | per month |
| Readability Tutor Annual | $139.99 | per year |

**What reviewers like**

- 👍 Helpful for struggling readers
- 🚀 Improves reading fluency
- 💡 Engaging for kids
- 👍 Useful data and progress tracking

**What reviewers complain about**

- 🐛 Voice recognition issues
- 🐛 Inaccurate comprehension tests
- 💰 Expensive subscription
- 🐛 Glitchy performance

**Reported bugs**

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

**Requested features**

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


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*