# BitaBIZ vs Postis

The clearest difference is update cadence: BitaBIZ at monthly against Postis's every 4 months. Postis's advantage is iOS requirement (12.4 vs 15.6). 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.

BitaBIZ ships an update monthly, Postis every 4 months. The most recent releases landed on September 18, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | BitaBIZ | Postis |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Size | 41 MB | 11 MB |
| Requires iOS | 15.6 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bitabite](https://appshunter.io/developer/472957258) | [POSTIS EXPRESS SA](https://appshunter.io/developer/1505313439) |

## What reviewers say

### BitaBIZ

[App page](https://appshunter.io/ios/app/bitabiz/id472957255)

**In-app purchases:** none


### Postis

[App page](https://appshunter.io/ios/app/postis/id1510338835)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BitaBIZ free?

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

### Is Postis free?

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

### Do BitaBIZ or Postis have ads?

Neither BitaBIZ nor Postis shows ads.

### Which is updated more often, BitaBIZ or Postis?

BitaBIZ ships an update monthly, and Postis every 4 months. Most recently, BitaBIZ was updated on September 18, 2026 and Postis on September 8, 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.*