# FormInk：PDF扫描签名 vs Invoice Maker Pro

The clearest difference is ads: FormInk：PDF扫描签名 at none against Invoice Maker Pro's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. FormInk：PDF扫描签名 sells 2 in-app purchases, starting at $2.99 per 7 days and Invoice Maker Pro sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | FormInk：PDF扫描签名 | Invoice Maker Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | — |
| Size | 7 MB | 12 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [biaopeng zhou](https://appshunter.io/developer/1895904365) | [ALILOU DIgital LTD](https://appshunter.io/developer/1877764619) |

## What reviewers say

### FormInk：PDF扫描签名

[App page](https://appshunter.io/ios/app/forminkpdf/id6773975445)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FormInk Pro Weekly | $2.99 | per 7 days |
| FormInk Pro Yearly | $24.99 | per year |


### Invoice Maker Pro

[App page](https://appshunter.io/ios/app/invoice-maker-pro-pdf-bills/id6774979388)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoice Maker Pro Monthly | $2.99 | per month |
| Invoice Maker Pro Yearly | $14.99 | per year |
| Invoice Maker Pro Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is FormInk：PDF扫描签名 free?

FormInk：PDF扫描签名 is free to download, with in-app purchases available.

### Is Invoice Maker Pro free?

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

### Do FormInk：PDF扫描签名 or Invoice Maker Pro have ads?

Invoice Maker Pro shows ads; FormInk：PDF扫描签名 does not.

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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.*