# Popusign vs WNoise

The clearest difference is in-app purchases: Popusign at none against WNoise's 3. Popusign also leads on update cadence (every 5 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. WNoise sells 3 in-app purchases, starting at $0.99 per month. Popusign asks for nothing beyond the download.

Popusign ships an update every 5 weeks, WNoise every 3 months. Both last shipped on September 30, 2026.

## The numbers

| Metric | Popusign | WNoise |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 105 MB | 67 MB |
| Requires iOS | **15.0** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [General Lighting Electronic Co., Ltd.](https://appshunter.io/developer/1775395523) | [ChaoYuan Zheng](https://appshunter.io/developer/1844520663) |

## What reviewers say

### Popusign

[App page](https://appshunter.io/ios/app/popusign/id6737228339)

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

**In-app purchases:** none


### WNoise

[App page](https://appshunter.io/ios/app/wnoise/id6753700979)

This app offers a rich library of natural sounds and custom audio uploads to create personalized soundscapes for relaxation, focus, and improved sleep. Manage your favorite mixes, sync them across devices, and use the sleep timer for a peaceful experience.

**Highlights:** Extensive natural sound library, Custom audio uploads, Personalized sound mix management, Cross-device cloud sync, Automatic sleep timer, Independent volume control

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| 3 Months | $2.99 | per 3 months |
| 1 Year | $7.99 | per year |


## Frequently asked questions

### Is Popusign free?

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

### Is WNoise free?

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

### Do Popusign or WNoise have ads?

Neither Popusign nor WNoise shows ads.

### Which is updated more often, Popusign or WNoise?

Popusign ships an update every 5 weeks, and WNoise every 3 months. Most recently, Popusign was updated on September 30, 2026 and WNoise on September 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.*