# Sidebar | Fast Notes vs Idea Think

The clearest difference is in-app purchases: Sidebar | Fast Notes at none against Idea Think's 1. Idea Think's advantage is update cadence (every 6 days vs every 2 months) and iOS requirement (15.0 vs 18.6). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Idea Think sells 1 one-off in-app purchase. Sidebar | Fast Notes asks for nothing beyond the download.

Sidebar | Fast Notes ships an update every 2 months, Idea Think every 6 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sidebar | Fast Notes | Idea Think |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/sidebar-fast-notes/id6450434079/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | Paid | **Free** |
| Size | 2 MB | 28 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chris Woods](https://appshunter.io/developer/1693297958) | [Man Chi CHoi](https://appshunter.io/developer/1804620702) |

## What reviewers say

### Sidebar | Fast Notes

[App page](https://appshunter.io/ios/app/sidebar-fast-notes/id6450434079)

Quickly capture thoughts and ideas without the need for organization. Entries are timestamped logs that can be tagged as to-dos or personal wins/losses. Syncs across devices with custom themes and a stealth mode.

**Highlights:** Instant note capture, Timestamped entries, To-do list integration, Personal scoreboard, Cross-device sync, Custom themes, Stealth mode

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

**In-app purchases:** none


### Idea Think

[App page](https://appshunter.io/ios/app/idea-think-thought-organizer/id6760612399)

Capture, organize, and visualize your thoughts with a mind mapping tool. Branch ideas naturally, search your entire library, and export your thinking as PDFs. Keep your ideas private and offline.

**Highlights:** Capture ideas in one tap, Unlimited branching, Interactive Tree Map view, Search by text or tag, Export as PDF, Private and offline storage

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IdeaThinkPro | $1.99 | one-time |


## Frequently asked questions

### Is Sidebar | Fast Notes free?

Sidebar | Fast Notes is free to download, with no in-app purchases.

### Is Idea Think free?

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

### Do Sidebar | Fast Notes or Idea Think have ads?

Neither Sidebar | Fast Notes nor Idea Think shows ads.

### Which is updated more often, Sidebar | Fast Notes or Idea Think?

Sidebar | Fast Notes ships an update every 2 months, and Idea Think every 6 days. Most recently, Sidebar | Fast Notes was updated on October 30, 2026 and Idea Think on October 31, 2026.

---

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