# IMV AI vs FormInk：PDF扫描签名

The clearest difference is in-app purchases: IMV AI at none against FormInk：PDF扫描签名's 2. FormInk：PDF扫描签名's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support 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. IMV AI asks for nothing beyond the download.

IMV AI ships an update every 2 weeks, FormInk：PDF扫描签名 fortnightly. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | IMV AI | FormInk：PDF扫描签名 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 30 MB | 7 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [O'ZBEKISTON RESPUBLIKASI IQTISODIYOT VA MOLIYA VAZIRLIGI HUZURIDAGI AXBOROT TEXNOLOGIYALARI MARKAZI](https://appshunter.io/developer/1854650508) | [biaopeng zhou](https://appshunter.io/developer/1895904365) |

## What reviewers say

### IMV AI

[App page](https://appshunter.io/ios/app/imv-ai/id6771358432)

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is IMV AI free?

IMV AI is free to download, with no in-app purchases.

### Is FormInk：PDF扫描签名 free?

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

### Do IMV AI or FormInk：PDF扫描签名 have ads?

Neither IMV AI nor FormInk：PDF扫描签名 shows ads.

### Which is updated more often, IMV AI or FormInk：PDF扫描签名?

IMV AI ships an update every 2 weeks, and FormInk：PDF扫描签名 fortnightly. Most recently, IMV AI was updated on October 24, 2026 and FormInk：PDF扫描签名 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.*