# door call vs Smartbell

The clearest difference is update cadence: door call at every 10 days against Smartbell's every 6 weeks. door call also leads on iOS requirement (7.1 vs 17.0). 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.

door call ships an update every 10 days, Smartbell every 6 weeks. The most recent releases landed on October 15, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | door call | Smartbell |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 6 weeks |
| Size | 31 MB | 66 MB |
| Requires iOS | **7.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [sks-Kinkel Elektronik GmbH](https://appshunter.io/developer/625228922) | [Codext GmbH](https://appshunter.io/developer/1488755999) |

## What reviewers say

### door call

[App page](https://appshunter.io/ios/app/door-call/id625228919)

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

**In-app purchases:** none


### Smartbell

[App page](https://appshunter.io/ios/app/smartbell/id1521007837)

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

**In-app purchases:** none


## Frequently asked questions

### Is door call free?

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

### Is Smartbell free?

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

### Do door call or Smartbell have ads?

Neither door call nor Smartbell shows ads.

### Which is updated more often, door call or Smartbell?

door call ships an update every 10 days, and Smartbell every 6 weeks. Most recently, door call was updated on October 15, 2026 and Smartbell on October 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.*