# Call About vs ZIRNET VoIP

The clearest difference is rating: ZIRNET VoIP at 5.0 against Call About's 4.0. Call About's advantage is update cadence (every 2 months vs every 4 months). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

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

ZIRNET VoIP holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Call About ships an update every 2 months, ZIRNET VoIP every 4 months. The most recent releases landed on October 13, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Call About | ZIRNET VoIP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/call-about/id523417697/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zirnet-voip/id1615084939/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 10 MB | 109 MB |
| Requires iOS | **15.2** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Roy Sharon Ltd](https://appshunter.io/developer/484845367) | [ZIRNET, LLC](https://appshunter.io/developer/1615084941) |

## What reviewers say

### Call About

[App page](https://appshunter.io/ios/app/call-about/id523417697)

This utility app helps you remember conversation topics for specific contacts. Notes appear on your call screen when they call, ensuring you never forget what to discuss. It's inspired by the GTD methodology for managing your to-do lists.

**Highlights:** Contact-specific reminders, Notes appear on call screen, Manage 'To Call' list, GTD-inspired agenda management

**In-app purchases:** none


### ZIRNET VoIP

[App page](https://appshunter.io/ios/app/zirnet-voip/id1615084939)

This SIP-based softphone app enables HD voice and video calls, along with push notifications. It facilitates free calls exclusively between users of the Zirnet platform.

**Highlights:** SIP-based softphone, Push notifications, HD voice calling, HD video calling, Free calls between Zirnet users

**In-app purchases:** none


## Frequently asked questions

### Is Call About free?

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

### Is ZIRNET VoIP free?

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

### Which has better reviews, Call About or ZIRNET VoIP?

ZIRNET VoIP is rated higher. Call About averages 4.0 out of 5 from 1 ratings, while ZIRNET VoIP averages 5.0 from 1 ratings.

### Which is updated more often, Call About or ZIRNET VoIP?

Call About ships an update every 2 months, and ZIRNET VoIP every 4 months. Most recently, Call About was updated on October 13, 2026 and ZIRNET VoIP 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.*