# Invoice Maker vs SlabOS Crew

The clearest difference is in-app purchases: SlabOS Crew at none against Invoice Maker's 3. SlabOS Crew also leads on ads (none vs shown). Invoice Maker's advantage is iOS requirement (13.0 vs 16.4). On price, update cadence and device support there is nothing between them.

Both are free to download. Invoice Maker sells 3 in-app purchases, starting at $9.99 per 7 days. SlabOS Crew asks for nothing beyond the download.

Invoice Maker ships an update every 5 days, SlabOS Crew every 6 days. The most recent releases landed on October 13, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Invoice Maker | SlabOS Crew |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 6 days |
| Size | 65 MB | 55 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [METKO LABS BILISIM ITHALAT VE IHRACAT TICARET LIMITED SIRKETI](https://appshunter.io/developer/1671640855) | [SLABOS SOFTWARE INC.](https://appshunter.io/developer/6807654814) |

## What reviewers say

### Invoice Maker

[App page](https://appshunter.io/ios/app/invoice-maker-estimates/id6753343850)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoice Generator | $9.99 | per 7 days |
| Invoice Generator | $29.99 | per month |
| Invoice Generator | $59.99 | per year |


### SlabOS Crew

[App page](https://appshunter.io/ios/app/slabos-crew/id6807654812)

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

**In-app purchases:** none


## Frequently asked questions

### Is Invoice Maker free?

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

### Is SlabOS Crew free?

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

### Do Invoice Maker or SlabOS Crew have ads?

Invoice Maker shows ads; SlabOS Crew does not.

### Which is updated more often, Invoice Maker or SlabOS Crew?

Invoice Maker ships an update every 5 days, and SlabOS Crew every 6 days. Most recently, Invoice Maker was updated on October 13, 2026 and SlabOS Crew 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.*