# Invoice Mate vs Sign Documents & Doc Scanner

The clearest difference is update cadence: Sign Documents & Doc Scanner at every 2 days against Invoice Mate's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Invoice Mate sells 3 in-app purchases, starting at $1.99 per 7 days and Sign Documents & Doc Scanner sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Invoice Mate ships an update every 3 weeks, Sign Documents & Doc Scanner every 2 days. The most recent releases landed on October 10, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Invoice Mate | Sign Documents & Doc Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (13 ratings)](https://appshunter.io/ios/app/sign-documents-and-doc-scanner/id6752650359/reviews)** |
| Number of ratings | — | **13** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 64 MB | 20 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Northline Technology Co., Ltd.](https://appshunter.io/developer/1518253277) | [Chan Tai](https://appshunter.io/developer/1851399897) |

## What reviewers say

### Invoice Mate

[App page](https://appshunter.io/ios/app/invoice-mate-invoice-maker/id6474968830)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoice Mate Weekly | $1.99 | per 7 days |
| Invoice Mate Monthly | $5.99 | per month |
| Invoice Mate Yearly | $39.99 | per year |


### Sign Documents & Doc Scanner

[App page](https://appshunter.io/ios/app/sign-documents-and-doc-scanner/id6752650359)

Streamline document management with powerful PDF tools and electronic signature capabilities. Sign contracts, edit PDFs, scan documents, and secure sensitive information on the go. Transform your workflow and eliminate paper-based processes.

**Highlights:** Legally-binding electronic signatures, Advanced PDF editing, High-quality document scanning, PDF to Office format conversion, Password protection and biometric locking, Intelligent form filling

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sign Documents Weekly Sale | $4.99 | per 7 days |
| Sign Documents Weekly | $6.99 | per 7 days |
| Sign Documents Monthly | $17.99 | per month |


## Frequently asked questions

### Is Invoice Mate free?

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

### Is Sign Documents & Doc Scanner free?

Sign Documents & Doc Scanner is free to download, with in-app purchases available.

### Do Invoice Mate or Sign Documents & Doc Scanner have ads?

Neither Invoice Mate nor Sign Documents & Doc Scanner shows ads.

### Which is updated more often, Invoice Mate or Sign Documents & Doc Scanner?

Invoice Mate ships an update every 3 weeks, and Sign Documents & Doc Scanner every 2 days. Most recently, Invoice Mate was updated on October 10, 2026 and Sign Documents & Doc Scanner on October 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.*