# Vivook vs C21 App

The clearest difference is ads: Vivook at none against C21 App's shown. Vivook also leads on update cadence (fortnightly vs every 2 months) and rating (4.0 vs 3.7). On price, ratings volume, 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.

Vivook holds the better App Store score, 4.0 against 3.7. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

Vivook ships an update fortnightly, C21 App every 2 months. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Vivook | C21 App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/vivook/id1449471008/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/c21-app/id1472577390/reviews) |
| Number of ratings | **4** | 3 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | **Free** | Ad-supported |
| Size | 51 MB | 28 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [MCTEKK SRL](https://appshunter.io/developer/1126428900) | [Genioi](https://appshunter.io/developer/1472577389) |

## What reviewers say

### Vivook

[App page](https://appshunter.io/ios/app/vivook/id1449471008)

Stay informed about everything happening in your residential community. Post requests to your administrator, check outstanding fees, and review your maintenance payments.

**Highlights:** Community updates, Administrator requests, Fee tracking, Payment history, Maintenance payments

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

**In-app purchases:** none


### C21 App

[App page](https://appshunter.io/ios/app/c21-app/id1472577390)

Discover properties for sale or rent, and find real estate offices offering top services. Utilize advanced filters and map views to easily locate your ideal property.

**Highlights:** Find properties for sale, Find properties for rent, Locate real estate offices, Advanced search filters, Map-based property search

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vivook free?

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

### Is C21 App free?

C21 App is free to download, with no in-app purchases.

### Which has better reviews, Vivook or C21 App?

Vivook is rated higher. Vivook averages 4.0 out of 5 from 4 ratings, while C21 App averages 3.7 from 3 ratings.

### Do Vivook or C21 App have ads?

C21 App shows ads; Vivook does not.

### Which is updated more often, Vivook or C21 App?

Vivook ships an update fortnightly, and C21 App every 2 months. Most recently, Vivook was updated on September 8, 2026 and C21 App on September 15, 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.*