# EchoLab. vs Echo Calculate

The clearest difference is in-app purchases: EchoLab. at none against Echo Calculate's 1. EchoLab. also leads on iOS requirement (10.1 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Echo Calculate sells 1 one-off in-app purchase. EchoLab. asks for nothing beyond the download.

## The numbers

| Metric | EchoLab. | Echo Calculate |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 6 months |
| Size | 34 MB | 26 MB |
| Requires iOS | **10.1** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Almokhtabar](https://appshunter.io/developer/1438043858) | [Gundogan Emre](https://appshunter.io/developer/1651146056) |

## What reviewers say

### EchoLab.

[App page](https://appshunter.io/ios/app/echolab/id1438043859)

**Features:** macOS Compatibility

**In-app purchases:** none


### Echo Calculate

[App page](https://appshunter.io/ios/app/echo-calculate/id1660468437)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Echo Calculate Premium | $3.99 | one-time |


## Frequently asked questions

### Is EchoLab. free?

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

### Is Echo Calculate free?

Echo Calculate is free to download, with in-app purchases available.

### Do EchoLab. or Echo Calculate have ads?

Neither EchoLab. nor Echo Calculate 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.*