# ZEWO Dynamics EMS vs Herzfunken

The clearest difference is in-app purchases: ZEWO Dynamics EMS at none against Herzfunken's 2. Herzfunken's advantage is update cadence (daily vs every 2 months) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Herzfunken sells 2 in-app purchases, starting at $0.99 per month. ZEWO Dynamics EMS asks for nothing beyond the download.

ZEWO Dynamics EMS ships an update every 2 months, Herzfunken daily. The most recent releases landed on September 19, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ZEWO Dynamics EMS | Herzfunken |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Size | 67 MB | 17 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zewotherm Heating GmbH](https://appshunter.io/developer/1781843522) | [Ramona Franke](https://appshunter.io/developer/6773099461) |

## What reviewers say

### ZEWO Dynamics EMS

[App page](https://appshunter.io/ios/app/zewo-dynamics-ems/id6738684459)

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

**In-app purchases:** none


### Herzfunken

[App page](https://appshunter.io/ios/app/herzfunken/id6773099459)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Herzfunken Pro (Monatlich) | $0.99 | per month |
| Herzfunken Pro (Jährlich) | $8.99 | per year |


## Frequently asked questions

### Is ZEWO Dynamics EMS free?

ZEWO Dynamics EMS is free to download, with no in-app purchases.

### Is Herzfunken free?

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

### Do ZEWO Dynamics EMS or Herzfunken have ads?

Neither ZEWO Dynamics EMS nor Herzfunken shows ads.

### Which is updated more often, ZEWO Dynamics EMS or Herzfunken?

ZEWO Dynamics EMS ships an update every 2 months, and Herzfunken daily. Most recently, ZEWO Dynamics EMS was updated on September 19, 2026 and Herzfunken on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*