# 水净世界 vs the waterfall

The clearest difference is in-app purchases: 水净世界 at none against the waterfall's 1. 水净世界 also leads on iOS requirement (9.0 vs 18.0). the waterfall's advantage is update cadence (every 3 months vs every 48 months). On price and device support there is nothing between them.

Both are free to download. the waterfall sells 1 one-off in-app purchase. 水净世界 asks for nothing beyond the download.

水净世界 ships an update every 48 months, the waterfall every 3 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 水净世界 | the waterfall |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/the-waterfall/id6470706449/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 88.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | Every 48 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 58 MB | 6 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ShenZhen DTSTON CO.,LTD.](https://appshunter.io/developer/1000587323) | [文杰 李](https://appshunter.io/developer/1590258684) |

## What reviewers say

### 水净世界

[App page](https://appshunter.io/ios/app/id1389706639)

**Features:** macOS Compatibility

**In-app purchases:** none


### the waterfall

[App page](https://appshunter.io/ios/app/the-waterfall/id6470706449)

This app serves as a personal introspection companion, allowing users to record thoughts, ideas, and memories. It features guided questions for deeper self-reflection, supports Markdown for expressive text, and allows tagging and image association with entries. Data is stored locally and synced with iCloud for privacy.

**Highlights:** Guided self-reflection questions, Markdown support for text, Tagging and image association, Local data storage with iCloud sync, Pinning important memories, Record reading notes and movie reviews

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WATERFALL UPGRADE | $7.99 | one-time |


## Frequently asked questions

### Is 水净世界 free?

水净世界 is free to download, with no in-app purchases.

### Is the waterfall free?

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

### Which is updated more often, 水净世界 or the waterfall?

水净世界 ships an update every 48 months, and the waterfall every 3 months. Most recently, 水净世界 was updated on October 26, 2026 and the waterfall on October 24, 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.*