# Algebra I Quick Reference vs 13+ Maths Lite

The clearest difference is price: 13+ Maths Lite at Free against Algebra I Quick Reference's $0.99. 13+ Maths Lite also leads on device support (3 vs 1) and iOS requirement (8.0 vs 12.0). Algebra I Quick Reference's advantage is in-app purchases (none vs 1). On update cadence and ads there is nothing between them.

13+ Maths Lite is free to download; Algebra I Quick Reference costs $0.99 up front. 13+ Maths Lite sells 1 one-off in-app purchase. Algebra I Quick Reference asks for nothing beyond the download.

Algebra I Quick Reference ships an update every 36 months, 13+ Maths Lite every 23 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Algebra I Quick Reference | 13+ Maths Lite |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 23 months** |
| Size | 4 MB | 54 MB |
| Requires iOS | 12.0 | **8.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Webrich Software Limited](https://appshunter.io/developer/290203591) |

## What reviewers say

### Algebra I Quick Reference

[App page](https://appshunter.io/ios/app/algebra-i-quick-reference/id560359498)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Algebra I Quick Reference free?

Algebra I Quick Reference costs $0.99, with no in-app purchases.

### Is 13+ Maths Lite free?

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

### Do Algebra I Quick Reference or 13+ Maths Lite have ads?

Neither Algebra I Quick Reference nor 13+ Maths Lite shows ads.

### Which is updated more often, Algebra I Quick Reference or 13+ Maths Lite?

Algebra I Quick Reference ships an update every 36 months, and 13+ Maths Lite every 23 months. Most recently, Algebra I Quick Reference was updated on October 26, 2026 and 13+ Maths Lite on October 27, 2026.

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