# Cleanwave vs Sisi Central

The clearest difference is update cadence: Cleanwave at monthly against Sisi Central's every 38 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Cleanwave ships an update monthly, Sisi Central every 38 months. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Cleanwave | Sisi Central |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 38 months |
| Monetization | Free | — |
| Size | 56 MB | 56 MB |
| Requires iOS | **14.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [coara OU](https://appshunter.io/developer/1494296868) | [Sisi Central](https://appshunter.io/developer/1517654454) |

## What reviewers say

### Cleanwave

[App page](https://appshunter.io/ios/app/cleanwave/id1515713285)

This app promotes access to free drinking water and advocates for a plastic-free society. It encourages legislative changes for water purification, reusable bottle infrastructure, and supports local bottle factories.

**Highlights:** Access to free drinking water, Advocacy for plastic-free living, Promotes water purification investment, Encourages reusable bottle infrastructure, Supports local bottle factories

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

**In-app purchases:** none


### Sisi Central

[App page](https://appshunter.io/ios/app/sisi-central/id1517654455)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cleanwave free?

Cleanwave is free to download, with no in-app purchases.

### Is Sisi Central free?

Sisi Central is free to download, with no in-app purchases.

### Do Cleanwave or Sisi Central have ads?

Neither Cleanwave nor Sisi Central shows ads.

### Which is updated more often, Cleanwave or Sisi Central?

Cleanwave ships an update monthly, and Sisi Central every 38 months. Most recently, Cleanwave was updated on October 6, 2026 and Sisi Central on October 17, 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.*