# Uchinoko Diary vs Koura Diary

The clearest difference is ads: Koura Diary at none against Uchinoko Diary's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Uchinoko Diary sells 1 one-off in-app purchase and Koura Diary sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Uchinoko Diary | Koura Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/koura-diary-turtle-care-log/id6783813983/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | Every 4 days |
| Monetization | — | Free with in-app purchases |
| Size | 229 MB | 104 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ota Sato](https://appshunter.io/developer/1895370516) | [Futo Togawa](https://appshunter.io/developer/6783813985) |

## What reviewers say

### Uchinoko Diary

[App page](https://appshunter.io/ios/app/uchinoko-diary/id6763551724)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告を非表示にする | $2.99 | one-time |


### Koura Diary

[App page](https://appshunter.io/ios/app/koura-diary-turtle-care-log/id6783813983)

Log your turtle's daily care, including weight, temperature, and meals. Track growth with charts and a calendar, and store shell photos. Get care reminders and manage multiple pets.

**Highlights:** Daily care logging, Growth charts and calendar, Shell photo timeline, Care reminders, Multiple turtle management, Offline viewing, Data export

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support Coffee (Small) | $0.99 | one-time |
| Support Coffee (Medium) | $1.99 | one-time |
| Support Coffee (Large) | $3.99 | one-time |


## Frequently asked questions

### Is Uchinoko Diary free?

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

### Is Koura Diary free?

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

### Do Uchinoko Diary or Koura Diary have ads?

Uchinoko Diary shows ads; Koura Diary does not.

### Which is updated more often, Uchinoko Diary or Koura Diary?

Uchinoko Diary ships an update every 4 days, and Koura Diary every 4 days. Most recently, Uchinoko Diary was updated on October 31, 2026 and Koura Diary on November 5, 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.*