# Correctbook App vs Capsule

The clearest difference is update cadence: Capsule at every 3 months against Correctbook App's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Correctbook App ships an update every 9 months, Capsule every 3 months. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Correctbook App | Capsule |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Size | 30 MB | 44 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Correctbook](https://appshunter.io/developer/1691849771) | [Mikael Shams](https://appshunter.io/developer/1808276638) |

## What reviewers say

### Correctbook App

[App page](https://appshunter.io/ios/app/correctbook-app/id6450104369)

**Features:** Vision Pro support

**In-app purchases:** none


### Capsule

[App page](https://appshunter.io/ios/app/capsule-capture-what-matters/id6756821320)

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

**In-app purchases:** none


## Frequently asked questions

### Is Correctbook App free?

Correctbook App is free to download, with no in-app purchases.

### Is Capsule free?

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

### Do Correctbook App or Capsule have ads?

Neither Correctbook App nor Capsule shows ads.

### Which is updated more often, Correctbook App or Capsule?

Correctbook App ships an update every 9 months, and Capsule every 3 months. Most recently, Correctbook App was updated on November 7, 2026 and Capsule on October 30, 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.*