# Coo vs OCA

The clearest difference is in-app purchases: OCA at none against Coo's 5. OCA also leads on iOS requirement (15.1 vs 18.0). Coo's advantage is update cadence (every 8 days vs every 3 weeks) and device support. On price there is nothing between them.

Both are free to download. Coo sells 5 in-app purchases, starting at $3.49 per month. OCA asks for nothing beyond the download.

Coo ships an update every 8 days, OCA every 3 weeks. The most recent releases landed on September 21, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Coo | OCA |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 45.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | **Every 8 days** | Every 3 weeks |
| Monetization | Freemium | — |
| Size | 109 MB | 42 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 12+ |
| Developer | [MACO](https://appshunter.io/developer/1513042976) | [COMBALBERT LAURENT](https://appshunter.io/developer/569446537) |

## What reviewers say

### Coo

[App page](https://appshunter.io/ios/app/coo/id1378039624)

This app provides comprehensive property and land information, including cadastral data, building footprints, pools, and past real estate transactions. It also offers insights into natural risks, noise exposure, and urban planning data. Subscribers can generate detailed PDF reports.

**Highlights:** Cadastral references, Building footprints and approximate ground coverage, Pool information, Real estate transaction history, Natural risk assessment, Urban planning data, PDF report generation

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Abonnement Basic 1 mois | $3.49 | per month |
| Abonnement Pro (1 mois) | $8.99 | per month |
| Abonnement Basic (1 an) | $35.99 | per year |
| Abonnement Pro (1 an) | $90.99 | per year |
| Pass 24h | $0.99 | one-time |


### OCA

[App page](https://appshunter.io/ios/app/oca-observer-comprendre-agir/id6483933544)

**In-app purchases:** none


## Frequently asked questions

### Is Coo free?

Coo is free to download, with in-app purchases available.

### Is OCA free?

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

### Which is updated more often, Coo or OCA?

Coo ships an update every 8 days, and OCA every 3 weeks. Most recently, Coo was updated on September 21, 2026 and OCA on September 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.*