# d.velop postbox vs Mein bitkasten

The clearest difference is review sentiment: Mein bitkasten at 60% against d.velop postbox's 0%. Mein bitkasten also leads on update cadence (every 3 weeks vs every 6 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

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

d.velop postbox ships an update every 6 weeks, Mein bitkasten every 3 weeks. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | d.velop postbox | Mein bitkasten |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **60.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 20 MB | 144 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [d.velop AG](https://appshunter.io/developer/391833196) | [bitkasten GmbH](https://appshunter.io/developer/1438751423) |

## What reviewers say

### d.velop postbox

[App page](https://appshunter.io/ios/app/dvelop-postbox/id1516764756)

Securely send and receive documents digitally with organizations like employers, clubs, and insurance providers. Store your digital correspondence safely in a certified German data center, ensuring the same security as traditional mail.

**Highlights:** Digital document sending and receiving, Secure storage in certified data centers, Connect with employers and organizations, Legally compliant document handling, Digital correspondence management

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

**In-app purchases:** none


### Mein bitkasten

[App page](https://appshunter.io/ios/app/mein-bitkasten/id6443718909)

Receive mail digitally and securely without email or scanning. Send and organize information in a protected digital mailbox, reducing paper waste and environmental impact.

**Highlights:** Secure digital mail reception, Digital information sending, Smart document archiving, Email-free communication, Environmentally sustainable, Reduced paper waste

**In-app purchases:** none


## Frequently asked questions

### Is d.velop postbox free?

d.velop postbox is free to download, with no in-app purchases.

### Is Mein bitkasten free?

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

### Do d.velop postbox or Mein bitkasten have ads?

Neither d.velop postbox nor Mein bitkasten shows ads.

### Which is updated more often, d.velop postbox or Mein bitkasten?

d.velop postbox ships an update every 6 weeks, and Mein bitkasten every 3 weeks. Most recently, d.velop postbox was updated on September 23, 2026 and Mein bitkasten on September 21, 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.*