# OrderBox Pro vs # Simple Invoice

The clearest difference is update cadence: # Simple Invoice at every 8 days against OrderBox Pro's every 5 months. # Simple Invoice also leads on iOS requirement (15.6 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. OrderBox Pro sells 1 one-off in-app purchase and # Simple Invoice sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

OrderBox Pro ships an update every 5 months, # Simple Invoice every 8 days. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | OrderBox Pro | # Simple Invoice |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 8 days** |
| Size | 9 MB | 48 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mustafa Kaya](https://appshunter.io/developer/1856938357) | [YUKI TANAIKE](https://appshunter.io/developer/478558546) |

## What reviewers say

### OrderBox Pro

[App page](https://appshunter.io/ios/app/orderbox-pro/id6755884658)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OrderBox Pro | $9.99 | one-time |


### # Simple Invoice

[App page](https://appshunter.io/ios/app/simple-invoice/id6761528129)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoice Pro (Monthly) | $1.99 | per month |
| Invoice Pro (Annual) | $18.00 | per year |


## Frequently asked questions

### Is OrderBox Pro free?

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

### Is # Simple Invoice free?

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

### Do OrderBox Pro or # Simple Invoice have ads?

Neither OrderBox Pro nor # Simple Invoice shows ads.

### Which is updated more often, OrderBox Pro or # Simple Invoice?

OrderBox Pro ships an update every 5 months, and # Simple Invoice every 8 days. Most recently, OrderBox Pro was updated on October 25, 2026 and # Simple Invoice on October 18, 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.*