# SERSA Zeit vs my ibw

The clearest difference is update cadence: my ibw at every 3 days against SERSA Zeit's every 20 months. SERSA Zeit's advantage is iOS requirement (11.0 vs 14.1). 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.

SERSA Zeit ships an update every 20 months, my ibw every 3 days. The most recent releases landed on September 10, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | SERSA Zeit | my ibw |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 3 days** |
| Size | 2 MB | 2 MB |
| Requires iOS | **11.0** | 14.1 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [all4net GmbH](https://appshunter.io/developer/460914773) | [anthrazit ag](https://appshunter.io/developer/340158700) |

## What reviewers say

### SERSA Zeit

[App page](https://appshunter.io/ios/app/sersa-zeit/id1367885908)

**In-app purchases:** none


### my ibw

[App page](https://appshunter.io/ios/app/my-ibw/id6738392821)

**In-app purchases:** none


## Frequently asked questions

### Is SERSA Zeit free?

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

### Is my ibw free?

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

### Do SERSA Zeit or my ibw have ads?

Neither SERSA Zeit nor my ibw shows ads.

### Which is updated more often, SERSA Zeit or my ibw?

SERSA Zeit ships an update every 20 months, and my ibw every 3 days. Most recently, SERSA Zeit was updated on September 10, 2026 and my ibw on September 11, 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.*