# Контур.Диадок vs 1С

The clearest difference is update cadence: Контур.Диадок at every 3 weeks against 1С's every 3 months. 1С's advantage is iOS requirement (13.0 vs 16.0). 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.

Контур.Диадок ships an update every 3 weeks, 1С every 3 months. The most recent releases landed on October 25, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Контур.Диадок | 1С |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (35 ratings)](https://appshunter.io/ios/app/id1492422672/reviews)** | — |
| Number of ratings | **35** | — |
| Positive reviews | 55.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 104 MB | 119 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SKB Kontur](https://appshunter.io/developer/417000920) | [1C-SOFT LIMITED LIABILITY COMPANY](https://appshunter.io/developer/1188302931) |

## What reviewers say

### Контур.Диадок

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

This business application facilitates the exchange of legally significant electronic documents with counterparties and within an organization. Users can sign, reject, approve, and reject approvals for documents using an account created in the web version. Keep your organization's document flow accessible on the go and manage counterparty invitations and transaction details.

**Highlights:** Exchange legally significant electronic documents, Sign, reject, and approve documents, Manage counterparty invitations, Review transaction history and comments, Access document flow on mobile

**Features:** macOS Compatibility

**In-app purchases:** none


### 1С

[App page](https://appshunter.io/ios/app/1/id6670476914)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Контур.Диадок free?

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

### Is 1С free?

1С is free to download, with no in-app purchases.

### Do Контур.Диадок or 1С have ads?

Neither Контур.Диадок nor 1С shows ads.

### Which is updated more often, Контур.Диадок or 1С?

Контур.Диадок ships an update every 3 weeks, and 1С every 3 months. Most recently, Контур.Диадок was updated on October 25, 2026 and 1С on October 3, 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.*