# Mosavi vs Rubicone

The clearest difference is rating: Rubicone at 5.0 against Mosavi's 4.1. Mosavi's advantage is in-app purchases (none vs 16) and ratings volume (80 vs 1). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Rubicone sells 14 one-off in-app purchases. Mosavi asks for nothing beyond the download.

Rubicone holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Mosavi has 80 ratings behind it against 1, so its average is the more settled of the two.

Mosavi ships an update every 3 weeks, Rubicone fortnightly. The most recent releases landed on September 23, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Mosavi | Rubicone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (80 ratings)](https://appshunter.io/ios/app/mosavi/id6737590326/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rubicone/id6740522868/reviews)** |
| Number of ratings | **80** | 1 |
| Positive reviews | 39.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 119 MB | 111 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mosavi](https://appshunter.io/developer/1777196955) | [HEXELK LLC](https://appshunter.io/developer/1790394308) |

## What reviewers say

### Mosavi

[App page](https://appshunter.io/ios/app/mosavi/id6737590326)

This app provides a decentralized and encrypted messaging experience using the Nostr protocol. It prioritizes user privacy with anonymous registration and end-to-end encryption for all communications. Enjoy secure voice, video, and group chats without sharing personal information.

**Highlights:** End-to-end encryption, Anonymous registration, Decentralized architecture, Voice and video calls, Group chat creation

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

**In-app purchases:** none


### Rubicone

[App page](https://appshunter.io/ios/app/rubicone/id6740522868)

Connect with others through secure and private communication. Share your thoughts and feelings in personal columns, and interact with content through comments and direct messages. Build your audience and foster new connections.

**Highlights:** Secure communication, Confidential information sharing, Member registration, Personal columns, Content interaction, Direct messaging

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 專欄時長 | $1.00 | one-time |
| 專欄時長 | $2.00 | one-time |
| 參與宣傳 | $10.00 | one-time |
| 机器人聊天额度充值 | $25.00 | one-time |
| 購買專欄時長 | $129.00 | one-time |
| 購買專欄時長 | $159.00 | one-time |
| 購買專欄時長 | $299.00 | one-time |
| 購買專欄時長 | $399.00 | one-time |
| 購買專欄時長 | $499.00 | one-time |
| 購買專欄時長 | $599.00 | one-time |
| 購買專欄時長 | $699.00 | one-time |
| 購買專欄時長 | $799.00 | one-time |
| 購買專欄時長 | $899.00 | one-time |
| 購買專欄時長 | $999.00 | one-time |


## Frequently asked questions

### Is Mosavi free?

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

### Is Rubicone free?

Rubicone is free to download, with in-app purchases available.

### Which has better reviews, Mosavi or Rubicone?

Rubicone is rated higher. Mosavi averages 4.1 out of 5 from 80 ratings, while Rubicone averages 5.0 from 1 ratings.

### Do Mosavi or Rubicone have ads?

Neither Mosavi nor Rubicone shows ads.

### Which is updated more often, Mosavi or Rubicone?

Mosavi ships an update every 3 weeks, and Rubicone fortnightly. Most recently, Mosavi was updated on September 23, 2026 and Rubicone on September 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*