# Who is Calling vs Alobulut

The clearest difference is update cadence: Who is Calling at every 3 months against Alobulut's every 19 months. Alobulut's advantage is device support (3 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.

Who is Calling ships an update every 3 months, Alobulut every 19 months. The most recent releases landed on October 9, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Who is Calling | Alobulut |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 19 months |
| Monetization | — | Free |
| Size | 25 MB | 57 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aydin UNAL](https://appshunter.io/developer/1298750211) | [D2 BILGI TEKNOLOJILERI HABERLESME YAZILIM VE GUVENLIK SISTEMLERI TICARET LIMITED SIRKETI](https://appshunter.io/developer/1746643690) |

## What reviewers say

### Who is Calling

[App page](https://appshunter.io/ios/app/who-is-calling-learn-caller/id6443437401)

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

**In-app purchases:** none


### Alobulut

[App page](https://appshunter.io/ios/app/alobulut/id6502743531)

This app enables you to use your company's internal phone numbers on your mobile device via VoIP technology. Make internal voice and video calls, send messages, and manage calls with features like call forwarding and conferencing.

**Highlights:** VoIP calling via SIP protocol, Internal voice and video calls, Instant messaging with colleagues, Shared company directory, Call forwarding and conferencing, Push notifications for missed calls

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Who is Calling free?

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

### Is Alobulut free?

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

### Do Who is Calling or Alobulut have ads?

Neither Who is Calling nor Alobulut shows ads.

### Which is updated more often, Who is Calling or Alobulut?

Who is Calling ships an update every 3 months, and Alobulut every 19 months. Most recently, Who is Calling was updated on October 9, 2026 and Alobulut on October 5, 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.*