# Fast Idea Book vs Future Self Capsule

The clearest difference is ads: Fast Idea Book at none against Future Self Capsule's shown. Fast Idea Book also leads on update cadence (every 6 weeks vs every 11 months). Future Self Capsule's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.5). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Fast Idea Book ships an update every 6 weeks, Future Self Capsule every 11 months. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Fast Idea Book | Future Self Capsule |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fast-idea-book/id6749139776/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 11 months |
| Monetization | Free | — |
| Size | 5 MB | 33 MB |
| Requires iOS | 18.5 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bahattin Duran](https://appshunter.io/developer/1677311418) | [Celtic Wards, LLC](https://appshunter.io/developer/1219544143) |

## What reviewers say

### Fast Idea Book

[App page](https://appshunter.io/ios/app/fast-idea-book/id6749139776)

Capture fleeting thoughts instantly with a streamlined note-taking tool. Record voice memos, attach files, and format text with Markdown. Organize ideas with folders and tags, and set reminders to never lose a brilliant concept.

**Highlights:** Instant idea capture, Voice memo recording, File and photo attachments, Markdown formatting, Customizable folders and tags, Smart reminders, Daily creative prompts

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

**In-app purchases:** none


### Future Self Capsule

[App page](https://appshunter.io/ios/app/future-self-capsule/id6756678439)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fast Idea Book free?

Fast Idea Book is free to download, with no in-app purchases.

### Is Future Self Capsule free?

Future Self Capsule is free to download, with no in-app purchases.

### Do Fast Idea Book or Future Self Capsule have ads?

Future Self Capsule shows ads; Fast Idea Book does not.

### Which is updated more often, Fast Idea Book or Future Self Capsule?

Fast Idea Book ships an update every 6 weeks, and Future Self Capsule every 11 months. Most recently, Fast Idea Book was updated on November 12, 2026 and Future Self Capsule on November 13, 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.*