# Njn vs ContextorAI

The clearest difference is ads: ContextorAI at none against Njn's shown. ContextorAI also leads on iOS requirement (16.0 vs 26.0). Njn's advantage is update cadence (every 9 days vs every 3 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Njn sells 1 in-app purchase, starting at $14.99 per month and ContextorAI sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Njn ships an update every 9 days, ContextorAI every 3 weeks. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Njn | ContextorAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/contextorai-ai-for-notes/id6759231826/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 56 MB | 98 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Mac |
| Age rating | 17+ | 4+ |
| Developer | [Michael Murphy](https://appshunter.io/developer/1358529998) | [Coiner.Cab Corp](https://appshunter.io/developer/1674968391) |

## 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 |


### ContextorAI

[App page](https://appshunter.io/ios/app/contextorai-ai-for-notes/id6759231826)

This app transforms your notes into a personalized knowledge base powered by AI. Chat with an AI that understands your context and previous research, ensuring nothing gets lost. Capture anything, organize smartly with auto-generated tags, and access your knowledge across devices.

**Highlights:** Personalized AI knowledge base, Capture notes, photos, and text from images, AI chat with your notes as context, End-to-end encrypted private notes, Instant sync between iPhone and Mac, Automatic tag and title generation, Search text within images

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ContextorAI | $9.99 | per month |
| ContextorAI | $19.99 | per month |
| ContextorAI | $79.99 | per year |
| ContextorAI Pro | $149.99 | per year |


## Frequently asked questions

### Is Njn free?

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

### Is ContextorAI free?

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

### Do Njn or ContextorAI have ads?

Njn shows ads; ContextorAI does not.

### Which is updated more often, Njn or ContextorAI?

Njn ships an update every 9 days, and ContextorAI every 3 weeks. Most recently, Njn was updated on October 28, 2026 and ContextorAI on October 24, 2026.

---

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