# InternetMastery vs Invoicerus

The clearest difference is price: Invoicerus at Free against InternetMastery's $9.99. Invoicerus also leads on in-app purchases (none vs 1). InternetMastery's advantage is iOS requirement (12.0 vs 15.1). On update cadence, ads and device support there is nothing between them.

Invoicerus is free to download; InternetMastery costs $9.99 up front. InternetMastery sells 1 in-app purchase, starting at $9.99 per month. Invoicerus asks for nothing beyond the download.

InternetMastery ships an update every 3 weeks, Invoicerus every 10 days. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | InternetMastery | Invoicerus |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/internetmastery/id1662156044/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Subscription | — |
| Size | 39 MB | 58 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Adam Ginsberg](https://appshunter.io/developer/1662156196) | [Emmanuel Agbonkina](https://appshunter.io/developer/1839620163) |

## What reviewers say

### InternetMastery

[App page](https://appshunter.io/ios/app/internetmastery/id1662156044)

This app provides e-commerce entrepreneurs with proprietary technologies and educational resources to help grow their Amazon businesses. It serves as a community hub for sellers looking to enhance their online sales strategies.

**Highlights:** Proprietary technologies for Amazon sellers, Educational resources for business growth, Community for e-commerce entrepreneurs, Tools to enhance online sales strategies

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |


### Invoicerus

[App page](https://appshunter.io/ios/app/invoicerus/id6798479189)

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

**In-app purchases:** none


## Frequently asked questions

### Is InternetMastery free?

InternetMastery costs $9.99, and also offers in-app purchases.

### Is Invoicerus free?

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

### Do InternetMastery or Invoicerus have ads?

Neither InternetMastery nor Invoicerus shows ads.

### Which is updated more often, InternetMastery or Invoicerus?

InternetMastery ships an update every 3 weeks, and Invoicerus every 10 days. Most recently, InternetMastery was updated on October 16, 2026 and Invoicerus on October 14, 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.*