# Big Math vs Science Audio eBooks Lite 1

The clearest difference is price: Science Audio eBooks Lite 1 at Free against Big Math's $1.99. Science Audio eBooks Lite 1 also leads on device support (3 vs 1) and iOS requirement (13.0 vs 15.6). Big Math's advantage is update cadence (every 11 months vs every 40 months). On ads and in-app purchases there is nothing between them.

Science Audio eBooks Lite 1 is free to download; Big Math costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Big Math ships an update every 11 months, Science Audio eBooks Lite 1 every 40 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Big Math | Science Audio eBooks Lite 1 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 months** | Every 40 months |
| Size | 18 MB | 22 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Eaglet LLC](https://appshunter.io/developer/449193510) | [KnowleMedia](https://appshunter.io/developer/1163260545) |

## What reviewers say

### Big Math

[App page](https://appshunter.io/ios/app/big-math/id591862472)

**Features:** macOS Compatibility

**In-app purchases:** none


### Science Audio eBooks Lite 1

[App page](https://appshunter.io/ios/app/science-audio-ebooks-lite-1/id6448881928)

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

**In-app purchases:** none


## Frequently asked questions

### Is Big Math free?

Big Math costs $1.99, with no in-app purchases.

### Is Science Audio eBooks Lite 1 free?

Science Audio eBooks Lite 1 is free to download, with no in-app purchases.

### Do Big Math or Science Audio eBooks Lite 1 have ads?

Neither Big Math nor Science Audio eBooks Lite 1 shows ads.

### Which is updated more often, Big Math or Science Audio eBooks Lite 1?

Big Math ships an update every 11 months, and Science Audio eBooks Lite 1 every 40 months. Most recently, Big Math was updated on October 29, 2026 and Science Audio eBooks Lite 1 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.*