# WN White Noise vs Simple Invoice Maker Generator

The clearest difference is in-app purchases: WN White Noise at none against Simple Invoice Maker Generator's 3. WN White Noise also leads on ads (none vs shown) and update cadence (every 3 days vs every 2 weeks). On price and device support there is nothing between them.

Both are free to download. Simple Invoice Maker Generator sells 3 in-app purchases, starting at $2.99 per 7 days. WN White Noise asks for nothing beyond the download.

WN White Noise ships an update every 3 days, Simple Invoice Maker Generator every 2 weeks. The most recent releases landed on September 9, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | WN White Noise | Simple Invoice Maker Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (12 ratings)](https://appshunter.io/ios/app/simple-invoice-maker-generator/id6717593349/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 61 MB | 143 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sabbil Hasny](https://appshunter.io/developer/1531245724) | [GULNUR DUZGUN](https://appshunter.io/developer/1770469191) |

## What reviewers say

### WN White Noise

[App page](https://appshunter.io/ios/app/wn-white-noise/id6590616294)

**Features:** macOS Compatibility

**In-app purchases:** none


### Simple Invoice Maker Generator

[App page](https://appshunter.io/ios/app/simple-invoice-maker-generator/id6717593349)

Quickly create and send professional invoices and estimates for your business. Track payments and expenses with smart receipt generation and automatic calculations. Ideal for freelancers, contractors, and small businesses.

**Highlights:** Create professional invoices, Generate estimates, Track payments, Manage expenses, Smart receipt generation, Automatic calculations

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Essential Pack Subscription | $2.99 | per 7 days |
| Essential Pack Subscription | $4.99 | per month |
| Essential Pack Subscription | $39.99 | per year |


## Frequently asked questions

### Is WN White Noise free?

WN White Noise is free to download, with no in-app purchases.

### Is Simple Invoice Maker Generator free?

Simple Invoice Maker Generator is free to download, with in-app purchases available.

### Do WN White Noise or Simple Invoice Maker Generator have ads?

Simple Invoice Maker Generator shows ads; WN White Noise does not.

### Which is updated more often, WN White Noise or Simple Invoice Maker Generator?

WN White Noise ships an update every 3 days, and Simple Invoice Maker Generator every 2 weeks. Most recently, WN White Noise was updated on September 9, 2026 and Simple Invoice Maker Generator on September 28, 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.*