# Regret Reflection vs 三千世間

The clearest difference is in-app purchases: 三千世間 at none against Regret Reflection's 1. Regret Reflection's advantage is update cadence (every 10 days vs monthly) and iOS requirement (13.6 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Regret Reflection sells 1 one-off in-app purchase. 三千世間 asks for nothing beyond the download.

Regret Reflection ships an update every 10 days, 三千世間 monthly. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Regret Reflection | 三千世間 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Size | 149 MB | 54 MB |
| Requires iOS | **13.6** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Man Hung Sun](https://appshunter.io/developer/1471605573) | [Easyapp Technology Co., Ltd.](https://appshunter.io/developer/827733313) |

## What reviewers say

### Regret Reflection

[App page](https://appshunter.io/ios/app/regret-reflection/id1580677971)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| up grade | $0.99 | one-time |


### 三千世間

[App page](https://appshunter.io/ios/app/id6743691552)

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

**In-app purchases:** none


## Frequently asked questions

### Is Regret Reflection free?

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

### Is 三千世間 free?

三千世間 is free to download, with no in-app purchases.

### Do Regret Reflection or 三千世間 have ads?

Neither Regret Reflection nor 三千世間 shows ads.

### Which is updated more often, Regret Reflection or 三千世間?

Regret Reflection ships an update every 10 days, and 三千世間 monthly. Most recently, Regret Reflection was updated on November 7, 2026 and 三千世間 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.*