# BatLib vs Echo Bat

The clearest difference is price: BatLib at Free against Echo Bat's $1.99. BatLib also leads on iOS requirement (15.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

BatLib is free to download; Echo Bat costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | BatLib | Echo Bat |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 26 months | — |
| Size | 38 MB | 17 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Elekon AG](https://appshunter.io/developer/1591447845) | [TRIMECH Dhaker](https://appshunter.io/developer/1832697893) |

## What reviewers say

### BatLib

[App page](https://appshunter.io/ios/app/batlib/id6469684050)

**Features:** macOS Compatibility

**In-app purchases:** none


### Echo Bat

[App page](https://appshunter.io/ios/app/echo-bat-sonar-sound-explorer/id6758017893)

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

**In-app purchases:** none


## Frequently asked questions

### Is BatLib free?

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

### Is Echo Bat free?

Echo Bat costs $1.99, with no in-app purchases.

### Do BatLib or Echo Bat have ads?

Neither BatLib nor Echo Bat 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.*