# SERSA Zeit vs Belimo Display

The clearest difference is update cadence: Belimo Display at every 4 months against SERSA Zeit's every 20 months. SERSA Zeit's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 16.0). On price, ads and in-app purchases 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, Belimo Display every 4 months. The most recent releases landed on September 28, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | SERSA Zeit | Belimo Display |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/belimo-display/id1535807783/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 2 MB | 8 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [all4net GmbH](https://appshunter.io/developer/460914773) | [BELIMO Automation AG](https://appshunter.io/developer/1149281298) |

## What reviewers say

### SERSA Zeit

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

**In-app purchases:** none


### Belimo Display

[App page](https://appshunter.io/ios/app/belimo-display/id1535807783)

This app allows users to view and adjust room sensor values like temperature, humidity, and CO2. It offers an intuitive interface for setpoint adjustments and includes a traffic light function for CO2 levels. Access protection ensures only authorized users can make changes.

**Highlights:** Display room values (temperature, humidity, CO2), Adjust setpoints intuitively, CO2 concentration with traffic light function, Access protection for unauthorized input, Multiple language support

**In-app purchases:** none


## Frequently asked questions

### Is SERSA Zeit free?

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

### Is Belimo Display free?

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

### Do SERSA Zeit or Belimo Display have ads?

Neither SERSA Zeit nor Belimo Display shows ads.

### Which is updated more often, SERSA Zeit or Belimo Display?

SERSA Zeit ships an update every 20 months, and Belimo Display every 4 months. Most recently, SERSA Zeit was updated on September 28, 2026 and Belimo Display on October 14, 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.*