# ERN Loyalty vs MRG KW

The clearest difference is update cadence: ERN Loyalty at every 10 days against MRG KW's every 5 months. ERN Loyalty also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

ERN Loyalty ships an update every 10 days, MRG KW every 5 months. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ERN Loyalty | MRG KW |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 5 months |
| Size | 28 MB | 80 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Intigate technologies (p) ltd](https://appshunter.io/developer/1057579478) | [OSOSS LLC](https://appshunter.io/developer/1450086599) |

## What reviewers say

### ERN Loyalty

[App page](https://appshunter.io/ios/app/ern-loyalty/id1029401577)

**Features:** macOS Compatibility

**In-app purchases:** none


### MRG KW

[App page](https://appshunter.io/ios/app/mrg-kw/id6754049202)

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

**In-app purchases:** none


## Frequently asked questions

### Is ERN Loyalty free?

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

### Is MRG KW free?

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

### Do ERN Loyalty or MRG KW have ads?

Neither ERN Loyalty nor MRG KW shows ads.

### Which is updated more often, ERN Loyalty or MRG KW?

ERN Loyalty ships an update every 10 days, and MRG KW every 5 months. Most recently, ERN Loyalty was updated on November 1, 2026 and MRG KW on October 25, 2026.

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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.*