# Casandra vs C21 App

The clearest difference is ads: Casandra at none against C21 App's shown. Casandra also leads on update cadence (every 4 days vs every 2 months) and rating (4.0 vs 3.7). C21 App's advantage is ratings volume (3 vs 1). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Casandra holds the better App Store score, 4.0 against 3.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Casandra ships an update every 4 days, C21 App every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Casandra | C21 App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/casandra/id1415558500/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/c21-app/id1472577390/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 2 months |
| Monetization | **Free** | Ad-supported |
| Size | 28 MB | 28 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Subvertis Cero Uno Cero S de RL de CV](https://appshunter.io/developer/1415558499) | [Genioi](https://appshunter.io/developer/1472577389) |

## What reviewers say

### Casandra

[App page](https://appshunter.io/ios/app/casandra/id1415558500)

This platform helps administrators manage residential condominiums, private homes, office buildings, and shopping centers. It offers automated payment processing, financial control, invoicing, and communication tools for efficient property management.

**Highlights:** Automated payment processing, Income and expense control, Budget comparison, Tax invoice issuance, Common area reservation management, Help desk for requests, Communication tools

**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 Casandra free?

Casandra 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, Casandra or C21 App?

Casandra is rated higher. Casandra averages 4.0 out of 5 from 1 ratings, while C21 App averages 3.7 from 3 ratings.

### Do Casandra or C21 App have ads?

C21 App shows ads; Casandra does not.

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

Casandra ships an update every 4 days, and C21 App every 2 months. Most recently, Casandra was updated on October 24, 2026 and C21 App on October 25, 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.*