# Threema OnPrem vs APPEIRON

The clearest difference is in-app purchases: Threema OnPrem at none against APPEIRON's 11. APPEIRON's advantage is device support (4 vs 2) and iOS requirement (15.1 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. APPEIRON sells 11 in-app purchases, starting at $9.99 per month. Threema OnPrem asks for nothing beyond the download.

Threema OnPrem ships an update weekly, APPEIRON every 5 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Threema OnPrem | APPEIRON |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/threema-onprem/id1348687756/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Free | — |
| Size | 111 MB | 170 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Threema GmbH](https://appshunter.io/developer/535112011) | [PJ Horelican](https://appshunter.io/developer/1892625301) |

## What reviewers say

### Threema OnPrem

[App page](https://appshunter.io/ios/app/threema-onprem/id1348687756)

This secure messaging solution offers organizations complete data sovereignty by hosting on their own servers. It provides end-to-end encrypted communication for teams, including voice and video calls, and secure file sharing, all protected by PIN or fingerprint.

**Highlights:** Self-hosted solution, Complete data sovereignty, End-to-end encrypted calls, Secure file sharing, Cross-platform compatibility, PIN/fingerprint chat protection

**Features:** Apple Wallet

**In-app purchases:** none


### APPEIRON

[App page](https://appshunter.io/ios/app/appeiron/id6762040044)

**Features:** Siri integration, Apple Watch app

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| APPEIRON Pro | $9.99 | per month |
| APPEIRON Pro+ | $10.99 | per month |
| APPEIRON Guardian | $19.99 | per month |
| APPEIRON Team | $24.99 | per month |
| APPEIRON Pro | $79.99 | per year |
| APPEIRON Pro+ | $119.99 | per year |
| APPEIRON Guardian | $149.99 | per year |
| APPEIRON Team | $249.99 | per year |
| APPEIRON Base | $5.99 | one-time |
| APPEIRON Pro+ | $29.99 | one-time |
| APPEIRON Guardian | $39.99 | one-time |


## Frequently asked questions

### Is Threema OnPrem free?

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

### Is APPEIRON free?

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

### Do Threema OnPrem or APPEIRON have ads?

Neither Threema OnPrem nor APPEIRON shows ads.

### Which is updated more often, Threema OnPrem or APPEIRON?

Threema OnPrem ships an update weekly, and APPEIRON every 5 days. Most recently, Threema OnPrem was updated on October 24, 2026 and APPEIRON on October 28, 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.*