# DMS4 vs Herdlync

The clearest difference is update cadence: Herdlync at monthly against DMS4's every 6 months. DMS4's advantage is iOS requirement (12.0 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.

DMS4 ships an update every 6 months, Herdlync monthly. The most recent releases landed on May 16, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | DMS4 | Herdlync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Size | 19 MB | 85 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EWT IP B.V.](https://appshunter.io/developer/1300104966) | [Intellync](https://appshunter.io/developer/1502234522) |

## What reviewers say

### DMS4

[App page](https://appshunter.io/ios/app/dms4/id1300104967)

**Features:** macOS Compatibility

**In-app purchases:** none


### Herdlync

[App page](https://appshunter.io/ios/app/herdlync/id1617299540)

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

**In-app purchases:** none


## Frequently asked questions

### Is DMS4 free?

DMS4 is free to download, with no in-app purchases.

### Is Herdlync free?

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

### Do DMS4 or Herdlync have ads?

Neither DMS4 nor Herdlync shows ads.

### Which is updated more often, DMS4 or Herdlync?

DMS4 ships an update every 6 months, and Herdlync monthly. Most recently, DMS4 was updated on May 16, 2026 and Herdlync on September 20, 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.*