# CallMe Set vs Zeitro

The clearest difference is price: CallMe Set at Free against Zeitro's $2.99. CallMe Set also leads on update cadence (every 2 days vs every 4 days) and iOS requirement (14.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

CallMe Set is free to download; Zeitro costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CallMe Set ships an update every 2 days, Zeitro every 4 days. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | CallMe Set | Zeitro |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 days |
| Monetization | Free | — |
| Size | 100 MB | 8 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [URMET SpA](https://appshunter.io/developer/380918208) | [Guido Scharmer-Choi](https://appshunter.io/developer/1864564012) |

## What reviewers say

### CallMe Set

[App page](https://appshunter.io/ios/app/callme-set/id6450313242)

Configure and manage smart devices during initial setup and beyond. Easily replace devices, update firmware, and perform functional tests to ensure optimal performance.

**Highlights:** Initial device configuration, Change configuration parameters, Replace broken devices, Upgrade device firmware, Perform functional tests

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

**In-app purchases:** none


### Zeitro

[App page](https://appshunter.io/ios/app/zeitro/id6757105759)

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

**In-app purchases:** none


## Frequently asked questions

### Is CallMe Set free?

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

### Is Zeitro free?

Zeitro costs $2.99, with no in-app purchases.

### Do CallMe Set or Zeitro have ads?

Neither CallMe Set nor Zeitro shows ads.

### Which is updated more often, CallMe Set or Zeitro?

CallMe Set ships an update every 2 days, and Zeitro every 4 days. Most recently, CallMe Set was updated on October 12, 2026 and Zeitro 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.*