# こころぐ vs Inkday

The clearest difference is update cadence: Inkday at weekly against こころぐ's fortnightly. Inkday also leads on device support (4 vs 2). こころぐ's advantage is iOS requirement (14.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. こころぐ sells 1 in-app purchase, starting at $1.99 per month and Inkday sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

こころぐ ships an update fortnightly, Inkday weekly. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | こころぐ | Inkday |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 3 MB | 23 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Mimi Okumura](https://appshunter.io/developer/6788955622) | [ChienHsiang Yin](https://appshunter.io/developer/1158778730) |

## What reviewers say

### こころぐ

[App page](https://appshunter.io/ios/app/ai/id6788955620)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| こころぐ Plus | $1.99 | per month |


### Inkday

[App page](https://appshunter.io/ios/app/inkday-private-journal/id6797171199)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Inkday Pro (Monthly) | $1.99 | per month |
| Inkday Pro (Yearly) | $7.99 | per year |
| Inkday Pro (Lifetime) | $14.99 | one-time |


## Frequently asked questions

### Is こころぐ free?

こころぐ is free to download, with in-app purchases available.

### Is Inkday free?

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

### Do こころぐ or Inkday have ads?

Neither こころぐ nor Inkday shows ads.

### Which is updated more often, こころぐ or Inkday?

こころぐ ships an update fortnightly, and Inkday weekly. Most recently, こころぐ was updated on October 31, 2026 and Inkday on November 1, 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.*