# Idea Note vs Plinth Priority Matrix

The clearest difference is update cadence: Plinth Priority Matrix at fortnightly against Idea Note's every 4 months. Idea Note's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Idea Note sells 3 in-app purchases, starting at $0.99 per 7 days and Plinth Priority Matrix sells 2 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Idea Note ships an update every 4 months, Plinth Priority Matrix fortnightly. The most recent releases landed on September 10, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Idea Note | Plinth Priority Matrix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/idea-note-mindmap-ai/id6751484503/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 1 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [won choi](https://appshunter.io/developer/1659403932) | [Linh Phan Nhat Khanh](https://appshunter.io/developer/1777727575) |

## What reviewers say

### Idea Note

[App page](https://appshunter.io/ios/app/idea-note-mindmap-ai/id6751484503)

Instantly structure your notes and thoughts into visual mind maps with AI assistance. Organize ideas, study effectively, and manage tasks by tracking progress on each node. Switch between mind map and list views for flexible organization and priority management.

**Highlights:** AI-powered mind map generation, Visual idea organization, Task status tracking, Progress monitoring, List view for systematic review, Priority management

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MindMap AI Subscription Weekly | $0.99 | per 7 days |
| MindMap AI Subscription Month | $2.99 | per month |
| MindMap AI Subscription Yearly | $22.99 | per year |


### Plinth Priority Matrix

[App page](https://appshunter.io/ios/app/plinth-priority-matrix/id6773756209)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plinth Priority Matrix Weekly | $9.99 | per 7 days |
| Plinth Priority Matrix Yearly | $49.99 | per year |


## Frequently asked questions

### Is Idea Note free?

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

### Is Plinth Priority Matrix free?

Plinth Priority Matrix is free to download, with in-app purchases available.

### Do Idea Note or Plinth Priority Matrix have ads?

Neither Idea Note nor Plinth Priority Matrix shows ads.

### Which is updated more often, Idea Note or Plinth Priority Matrix?

Idea Note ships an update every 4 months, and Plinth Priority Matrix fortnightly. Most recently, Idea Note was updated on September 10, 2026 and Plinth Priority Matrix on September 14, 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.*