# ESA DMPL Authenticator vs Shepherd Spring Vets

The clearest difference is iOS requirement: Shepherd Spring Vets at 12.0 against ESA DMPL Authenticator's 15. On price, update cadence, ads and in-app purchases there is nothing between them.

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

ESA DMPL Authenticator ships an update every 9 months, Shepherd Spring Vets every 19 months. The most recent releases landed on September 29, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | ESA DMPL Authenticator | Shepherd Spring Vets |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 19 months |
| Size | 1 MB | 32 MB |
| Requires iOS | 15 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [TSA Group Delft bv](https://appshunter.io/developer/970440379) | [Avg Intermediate Holdings LLC](https://appshunter.io/developer/1623604137) |

## What reviewers say

### ESA DMPL Authenticator

[App page](https://appshunter.io/ios/app/esa-dmpl-authenticator/id1622186631)

**Features:** Vision Pro support

**In-app purchases:** none


### Shepherd Spring Vets

[App page](https://appshunter.io/ios/app/shepherd-spring-vets/id1663303380)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ESA DMPL Authenticator free?

ESA DMPL Authenticator is free to download, with no in-app purchases.

### Is Shepherd Spring Vets free?

Shepherd Spring Vets is free to download, with no in-app purchases.

### Do ESA DMPL Authenticator or Shepherd Spring Vets have ads?

Neither ESA DMPL Authenticator nor Shepherd Spring Vets shows ads.

### Which is updated more often, ESA DMPL Authenticator or Shepherd Spring Vets?

ESA DMPL Authenticator ships an update every 9 months, and Shepherd Spring Vets every 19 months. Most recently, ESA DMPL Authenticator was updated on September 29, 2026 and Shepherd Spring Vets on October 3, 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.*