# Контур.Диадок vs КриптоАРМ Mobile

The clearest difference is review sentiment: КриптоАРМ Mobile at 100% against Контур.Диадок's 56%. КриптоАРМ Mobile also leads on iOS requirement (15.5 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Контур.Диадок ships an update every 2 weeks, КриптоАРМ Mobile every 9 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Контур.Диадок | КриптоАРМ Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (36 ratings)](https://appshunter.io/ios/app/id1492422672/reviews)** | — |
| Number of ratings | **36** | — |
| Positive reviews | 55.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | Free | Free |
| Size | 107 MB | 66 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [SKB Kontur](https://appshunter.io/developer/417000920) | [Digt](https://appshunter.io/developer/1218200349) |

## What reviewers say

### Контур.Диадок

[App page](https://appshunter.io/ios/app/id1492422672)

This business application facilitates the exchange of legally significant electronic documents between counterparties and within an organization. Users can sign, approve, or reject documents directly from their mobile devices, managing their entire document workflow on the go. It requires an account created via the web version.

**Highlights:** Exchange legally significant electronic documents, Sign, approve, and reject documents, Manage organizational document workflow, Invite new counterparties, Review deal information before signing

**Features:** macOS Compatibility

**In-app purchases:** none


### КриптоАРМ Mobile

[App page](https://appshunter.io/ios/app/mobile/id6755302720)

Securely sign and verify electronic documents on your iPhone and iPad. Supports offline operations, hardware tokens, and Russian GOST cryptographic algorithms. Offers an open API for seamless integration into corporate systems.

**Highlights:** Electronic document signing, Signature verification, Encryption and decryption, Certificate management, Hardware token support (NFC), Offline operation, Open API for integration

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

**In-app purchases:** none


## Frequently asked questions

### Is Контур.Диадок free?

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

### Is КриптоАРМ Mobile free?

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

### Do Контур.Диадок or КриптоАРМ Mobile have ads?

Neither Контур.Диадок nor КриптоАРМ Mobile shows ads.

### Which is updated more often, Контур.Диадок or КриптоАРМ Mobile?

Контур.Диадок ships an update every 2 weeks, and КриптоАРМ Mobile every 9 days. Most recently, Контур.Диадок was updated on November 3, 2026 and КриптоАРМ Mobile on October 31, 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.*