# 1С vs Контур.Диадок

The clearest difference is review sentiment: Контур.Диадок at 56% against 1С's 15%. Контур.Диадок also leads on update cadence (every 2 weeks vs every 6 weeks). 1С's advantage is iOS requirement (11.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

1С ships an update every 6 weeks, Контур.Диадок every 2 weeks. The most recent releases landed on November 3, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | 1С | Контур.Диадок |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (36 ratings)](https://appshunter.io/ios/app/id1492422672/reviews)** |
| Number of ratings | — | **36** |
| Positive reviews | 15.0% of reviews | **55.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 132 MB | 107 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [1C-SOFT LIMITED LIABILITY COMPANY](https://appshunter.io/developer/1188302931) | [SKB Kontur](https://appshunter.io/developer/417000920) |

## What reviewers say

### 1С

[App page](https://appshunter.io/ios/app/1-22/id1491885028)

Manage your business workflows on the go. Respond to emails, approve documents, and assign tasks to colleagues. Keep track of your calendar and control all ongoing processes, even without an internet connection.

**Highlights:** Work email response, Document approval, Task assignment, Calendar management, Process control, Absence recording

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is 1С free?

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

### Is Контур.Диадок free?

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

### Do 1С or Контур.Диадок have ads?

Neither 1С nor Контур.Диадок shows ads.

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

1С ships an update every 6 weeks, and Контур.Диадок every 2 weeks. Most recently, 1С was updated on November 3, 2026 and Контур.Диадок on November 11, 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.*