# 1日1行日記 vs 逆算日記

The clearest difference is in-app purchases: 1日1行日記 at none against 逆算日記's 1. 1日1行日記 also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 逆算日記 sells 1 one-off in-app purchase. 1日1行日記 asks for nothing beyond the download.

## The numbers

| Metric | 1日1行日記 | 逆算日記 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | — |
| Size | 16 MB | 5 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Rikuto Sato](https://appshunter.io/developer/1492548460) | [hirokazu murabe](https://appshunter.io/developer/894364772) |

## What reviewers say

### 1日1行日記

[App page](https://appshunter.io/ios/app/11/id6758018873)

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

**In-app purchases:** none


### 逆算日記

[App page](https://appshunter.io/ios/app/id6791003196)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $0.49 | one-time |


## Frequently asked questions

### Is 1日1行日記 free?

1日1行日記 is free to download, with no in-app purchases.

### Is 逆算日記 free?

逆算日記 is free to download, with in-app purchases available.

### Do 1日1行日記 or 逆算日記 have ads?

逆算日記 shows ads; 1日1行日記 does not.

---

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