# Simple Invoice Maker vs 5dkey

The clearest difference is in-app purchases: 5dkey at none against Simple Invoice Maker's 3. 5dkey also leads on ads (none vs shown) and update cadence (every 3 months vs every 10 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Simple Invoice Maker sells 3 in-app purchases, starting at $3.99 per month. 5dkey asks for nothing beyond the download.

Simple Invoice Maker ships an update every 10 months, 5dkey every 3 months. The most recent releases landed on September 15, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Simple Invoice Maker | 5dkey |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Every 3 months** |
| Size | 11 MB | 79 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iComet](https://appshunter.io/developer/408908544) | [Sitepics.app Pty Ltd](https://appshunter.io/developer/1470026369) |

## What reviewers say

### Simple Invoice Maker

[App page](https://appshunter.io/ios/app/simple-invoice-maker/id6446448566)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $3.99 | per month |
| 6 Months Subscription | $19.99 | per 6 months |
| 1 Year Subscription | $39.99 | per year |


### 5dkey

[App page](https://appshunter.io/ios/app/5dkey/id6463869995)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Simple Invoice Maker free?

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

### Is 5dkey free?

5dkey is free to download, with no in-app purchases.

### Do Simple Invoice Maker or 5dkey have ads?

Simple Invoice Maker shows ads; 5dkey does not.

### Which is updated more often, Simple Invoice Maker or 5dkey?

Simple Invoice Maker ships an update every 10 months, and 5dkey every 3 months. Most recently, Simple Invoice Maker was updated on September 15, 2026 and 5dkey on September 23, 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.*