# Njn vs Codename Jo

The clearest difference is in-app purchases: Codename Jo at none against Njn's 1. Codename Jo also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Njn sells 1 in-app purchase, starting at $14.99 per month. Codename Jo asks for nothing beyond the download.

Njn ships an update every 9 days, Codename Jo every 5 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Njn | Codename Jo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/codename-jo/id6793888936/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Every 5 days** |
| Monetization | — | Free |
| Size | 56 MB | 110 MB |
| Requires iOS | **26.0** | 26.4 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Michael Murphy](https://appshunter.io/developer/1358529998) | [Petaforge Inc.](https://appshunter.io/developer/6786018763) |

## What reviewers say

### Njn

[App page](https://appshunter.io/ios/app/njn/id6759216016)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Njn Premium | $14.99 | per month |


### Codename Jo

[App page](https://appshunter.io/ios/app/codename-jo/id6793888936)

This voice assistant helps manage your inbox and calendar by summarizing emails, drafting replies, and scheduling events. It integrates with various work tools and can be controlled from your Apple Watch.

**Highlights:** Summarize emails, Draft and send replies, Organize messages, Manage calendar events, Integrate with work tools, Apple Watch companion app

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

**In-app purchases:** none


## Frequently asked questions

### Is Njn free?

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

### Is Codename Jo free?

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

### Do Njn or Codename Jo have ads?

Njn shows ads; Codename Jo does not.

### Which is updated more often, Njn or Codename Jo?

Njn ships an update every 9 days, and Codename Jo every 5 days. Most recently, Njn was updated on October 28, 2026 and Codename Jo on October 25, 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.*