# sls E vs BTP HeartBeat

The clearest difference is device support: BTP HeartBeat at 3 against sls E's —. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | sls E | BTP HeartBeat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Size | 75 MB | 28 MB |
| Requires iOS | 14.0 | **13.1** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Pioneers Solutions](https://appshunter.io/developer/1492903229) | [CommonTown Pte Ltd](https://appshunter.io/developer/425121361) |

## What reviewers say

### sls E

[App page](https://appshunter.io/ios/app/sls-e-school/id6476454603)

**In-app purchases:** none


### BTP HeartBeat

[App page](https://appshunter.io/ios/app/btp-heartbeat/id6753782084)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is sls E free?

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

### Is BTP HeartBeat free?

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

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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.*