# OPUS Architecture & Design vs C2C CONSEILS

The clearest difference is iOS requirement: C2C CONSEILS at 11.0 against OPUS Architecture & Design's 15.1. 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.

OPUS Architecture & Design ships an update every 2 weeks, C2C CONSEILS monthly. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | OPUS Architecture & Design | C2C CONSEILS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free | — |
| Size | 64 MB | 25 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OPUS, Inc.](https://appshunter.io/developer/1591807718) | [ACD Groupe](https://appshunter.io/developer/1033556694) |

## What reviewers say

### OPUS Architecture & Design

[App page](https://appshunter.io/ios/app/opus-architecture-and-design/id1591807716)

Easily track project progress on the go with this comprehensive tool. Access all project information, including messaging, photo sharing, file management, and appointment planning, in one convenient application. Stay informed and manage your projects with clarity and serenity.

**Highlights:** Real-time project progress tracking, Integrated messaging, Photo sharing, File management, Appointment planning, Centralized project information

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

**In-app purchases:** none


### C2C CONSEILS

[App page](https://appshunter.io/ios/app/c2c-conseils/id6478499695)

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

**In-app purchases:** none


## Frequently asked questions

### Is OPUS Architecture & Design free?

OPUS Architecture & Design is free to download, with no in-app purchases.

### Is C2C CONSEILS free?

C2C CONSEILS is free to download, with no in-app purchases.

### Do OPUS Architecture & Design or C2C CONSEILS have ads?

Neither OPUS Architecture & Design nor C2C CONSEILS shows ads.

### Which is updated more often, OPUS Architecture & Design or C2C CONSEILS?

OPUS Architecture & Design ships an update every 2 weeks, and C2C CONSEILS monthly. Most recently, OPUS Architecture & Design was updated on November 3, 2026 and C2C CONSEILS on October 24, 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.*