# 13+ Maths Lite vs OTESgr8kids

The clearest difference is in-app purchases: OTESgr8kids at none against 13+ Maths Lite's 1. OTESgr8kids also leads on update cadence (every 3 months vs every 23 months). 13+ Maths Lite's advantage is iOS requirement (8.0 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. 13+ Maths Lite sells 1 one-off in-app purchase. OTESgr8kids asks for nothing beyond the download.

13+ Maths Lite ships an update every 23 months, OTESgr8kids every 3 months. The most recent releases landed on October 27, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 13+ Maths Lite | OTESgr8kids |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/otesgr8kids/id1266248026/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 54 MB | 85 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Webrich Software Limited](https://appshunter.io/developer/290203591) | [Tanya Mason](https://appshunter.io/developer/1266248025) |

## What reviewers say

### 13+ Maths Lite

[App page](https://appshunter.io/ios/app/13-plus-maths-lite/id679007455)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Question Bank | $4.99 | one-time |


### OTESgr8kids

[App page](https://appshunter.io/ios/app/otesgr8kids/id1266248026)

This educational app supports 5th-grade students, teachers, and parents with Common Core standards. It provides resources and tools to enhance learning and teaching for this specific grade level.

**Highlights:** 5th-grade Common Core support, Tools for students, Resources for teachers, Support for parents, Educational content

**In-app purchases:** none


## Frequently asked questions

### Is 13+ Maths Lite free?

13+ Maths Lite is free to download, with in-app purchases available.

### Is OTESgr8kids free?

OTESgr8kids is free to download, with no in-app purchases.

### Do 13+ Maths Lite or OTESgr8kids have ads?

Neither 13+ Maths Lite nor OTESgr8kids shows ads.

### Which is updated more often, 13+ Maths Lite or OTESgr8kids?

13+ Maths Lite ships an update every 23 months, and OTESgr8kids every 3 months. Most recently, 13+ Maths Lite was updated on October 27, 2026 and OTESgr8kids on October 17, 2026.

---

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