# Readability App vs Audio Lambda

The clearest difference is price: Audio Lambda at Free against Readability App's $0.99. Audio Lambda also leads on iOS requirement (12.0 vs 15.2). On ads, in-app purchases and device support there is nothing between them.

Audio Lambda is free to download; Readability App costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Readability App | Audio Lambda |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 months |
| Size | 1 MB | 10 MB |
| Requires iOS | 15.2 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Inkwire Tech Hangzhou Co., Ltd.](https://appshunter.io/developer/1468283514) | [Audio Lambda](https://appshunter.io/developer/1737345056) |

## What reviewers say

### Readability App

[App page](https://appshunter.io/ios/app/readability-app/id1624968198)

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

**In-app purchases:** none


### Audio Lambda

[App page](https://appshunter.io/ios/app/audio-lambda/id6479844099)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Readability App free?

Readability App costs $0.99, with no in-app purchases.

### Is Audio Lambda free?

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

### Do Readability App or Audio Lambda have ads?

Neither Readability App nor Audio Lambda shows ads.

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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.*