# ELS Customer vs ESP

The clearest difference is in-app purchases: ELS Customer at none against ESP's 1. ELS Customer also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price and ads there is nothing between them.

Both are free to download. ESP sells 1 one-off in-app purchase. ELS Customer asks for nothing beyond the download.

## The numbers

| Metric | ELS Customer | ESP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 41 MB | 1 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [KODER D.O.O.E.L](https://appshunter.io/developer/1796849881) | [Wuhan FireFrog Technology Co., Ltd.](https://appshunter.io/developer/917083159) |

## What reviewers say

### ELS Customer

[App page](https://appshunter.io/ios/app/els-customer/id6742109725)

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

**In-app purchases:** none


### ESP

[App page](https://appshunter.io/ios/app/esp-airlink/id6756355176)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| a cup of coffee | $0.99 | one-time |


## Frequently asked questions

### Is ELS Customer free?

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

### Is ESP free?

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

### Do ELS Customer or ESP have ads?

Neither ELS Customer nor ESP 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.*