# WelcomeBob vs O

The clearest difference is update cadence: O at every 4 days against WelcomeBob's every 3 weeks. WelcomeBob's advantage is device support (4 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

WelcomeBob ships an update every 3 weeks, O every 4 days. Both last shipped on October 10, 2026.

## The numbers

| Metric | WelcomeBob | O |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/welcomebob/id1362475811/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 88 MB | 57 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Welcomebob Group AS](https://appshunter.io/developer/1668348889) | [PUFin ID A/S](https://appshunter.io/developer/1614643757) |

## What reviewers say

### WelcomeBob

[App page](https://appshunter.io/ios/app/welcomebob/id1362475811)

This app digitizes your doorphone system, allowing you to see, speak to, and grant access to visitors from your smartphone. It simplifies building management by eliminating keys and enabling remote control and communication.

**Highlights:** HD video and audio streaming, Remote door opening, Visitor access sharing, Automatic name display updates, Building-wide messaging

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### O

[App page](https://appshunter.io/ios/app/o-key-authenticator/id6776659466)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WelcomeBob free?

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

### Is O free?

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

### Do WelcomeBob or O have ads?

Neither WelcomeBob nor O shows ads.

### Which is updated more often, WelcomeBob or O?

WelcomeBob ships an update every 3 weeks, and O every 4 days. Most recently, WelcomeBob was updated on October 10, 2026 and O on October 10, 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.*