# Kasookoo vs Rivalzz

The clearest difference is rating: Rivalzz at 5.0 against Kasookoo's 4.3. Kasookoo's advantage is ratings volume (7 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Rivalzz holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 7 and 2 respectively.

Kasookoo ships an update every 6 months, Rivalzz every 8 months. The most recent releases landed on September 15, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Kasookoo | Rivalzz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (7 ratings)](https://appshunter.io/ios/app/kasookoo/id1451964697/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rivalzz/id1485715148/reviews)** |
| Number of ratings | **7** | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 8 months |
| Monetization | Free | Free |
| Size | 36 MB | 97 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuave Ltd](https://appshunter.io/developer/1049031932) | [Rivalzz Pty Ltd](https://appshunter.io/developer/1485715147) |

## What reviewers say

### Kasookoo

[App page](https://appshunter.io/ios/app/kasookoo/id1451964697)

This business phone system app liberates users from traditional phone line costs and constraints. It offers features like a virtual receptionist, conference calling, and call tagging directly on a smartphone.

**Highlights:** Virtual receptionist, Conference calling, Call tagging, Customizable caller ID

**In-app purchases:** none


### Rivalzz

[App page](https://appshunter.io/ios/app/rivalzz/id1485715148)

Make free HD calls and send messages to contacts worldwide. Share files, photos, and voice messages easily across different operating systems. Earn credit by inviting friends and family.

**Highlights:** Free HD calls worldwide, Smart Contacts for free communication, Cross-platform file, photo, and voice message sharing, Call any number globally, Earn credit by referring friends

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kasookoo free?

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

### Is Rivalzz free?

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

### Which has better reviews, Kasookoo or Rivalzz?

Rivalzz is rated higher. Kasookoo averages 4.3 out of 5 from 7 ratings, while Rivalzz averages 5.0 from 2 ratings.

### Do Kasookoo or Rivalzz have ads?

Neither Kasookoo nor Rivalzz shows ads.

### Which is updated more often, Kasookoo or Rivalzz?

Kasookoo ships an update every 6 months, and Rivalzz every 8 months. Most recently, Kasookoo was updated on September 15, 2026 and Rivalzz on June 4, 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.*