# 1С vs Контур.Диадок

The clearest difference is rating: Контур.Диадок at 4.5 against 1С's 2.0. Контур.Диадок also leads on ratings volume (35 vs 2) and update cadence (every 3 weeks vs every 2 months). 1С's advantage is iOS requirement (13.0 vs 16.0). On price, review sentiment, 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 holds the better App Store score, 4.5 against 2.0. That said, the two scores are not equally well evidenced: Контур.Диадок has 35 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 50% of 1С's written reviews are positive against 56% of Контур.Диадок's.

1С ships an update every 2 months, Контур.Диадок every 3 weeks. Both last shipped on October 26, 2026.

## The numbers

| Metric | 1С | Контур.Диадок |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (2 ratings)](https://appshunter.io/ios/app/1/id1210606612/reviews) | **[4.5 (35 ratings)](https://appshunter.io/ios/app/id1492422672/reviews)** |
| Number of ratings | 2 | **35** |
| Positive reviews | 50.0% of reviews | **55.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 157 MB | 104 MB |
| Requires iOS | **13.0** | 16.0 |
| 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/id1210606612)

This app helps individual entrepreneurs and self-employed individuals manage their taxes and finances. It calculates taxes, prepares payment documents, and generates invoices and receipts. The app also integrates with banking services and provides reminders for important deadlines.

**Highlights:** Tax calculation and reminders, Payment document preparation, Invoice and receipt generation, Bank integration, Cloud data backup, Self-employed tax management

**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 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


## 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.

### Which has better reviews, 1С or Контур.Диадок?

Контур.Диадок is rated higher. 1С averages 2.0 out of 5 from 2 ratings, while Контур.Диадок averages 4.5 from 35 ratings.

### 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 2 months, and Контур.Диадок every 3 weeks. Most recently, 1С was updated on October 26, 2026 and Контур.Диадок on October 26, 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.*