# IIT Sign Client vs WhiteDoc

The clearest difference is update cadence: WhiteDoc at every 2 weeks against IIT Sign Client's every 2 months. IIT Sign Client's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

IIT Sign Client ships an update every 2 months, WhiteDoc every 2 weeks. The most recent releases landed on October 2, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | IIT Sign Client | WhiteDoc |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 20 MB | 42 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IIT, JSC](https://appshunter.io/developer/1447134477) | [Yaroslav Tovmashenko](https://appshunter.io/developer/1689590218) |

## What reviewers say

### IIT Sign Client

[App page](https://appshunter.io/ios/app/iit-sign-client/id1467005893)

This application facilitates the signing of data using private keys. It leverages network modules on signature servers for secure key storage and operation.

**Highlights:** Data signing functionality, Private key management, Network module integration, Signature server utilization, Secure key storage

**Features:** macOS Compatibility

**In-app purchases:** none


### WhiteDoc

[App page](https://appshunter.io/ios/app/whitedoc/id6760114856)

**In-app purchases:** none


## Frequently asked questions

### Is IIT Sign Client free?

IIT Sign Client is free to download, with no in-app purchases.

### Is WhiteDoc free?

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

### Do IIT Sign Client or WhiteDoc have ads?

Neither IIT Sign Client nor WhiteDoc shows ads.

### Which is updated more often, IIT Sign Client or WhiteDoc?

IIT Sign Client ships an update every 2 months, and WhiteDoc every 2 weeks. Most recently, IIT Sign Client was updated on October 2, 2026 and WhiteDoc 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.*