# CKey vs Nimbus Digital

The clearest difference is update cadence: Nimbus Digital at every 2 weeks against CKey's every 4 months. CKey's advantage is iOS requirement (13.1 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

CKey ships an update every 4 months, Nimbus Digital every 2 weeks. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | CKey | Nimbus Digital |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/ckey/id1595125340/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 39 MB | 262 MB |
| Requires iOS | **13.1** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Nauta - Solucoes de Seguranca Lda](https://appshunter.io/developer/1591042829) | [Nimbus Digital Solutions Ltd](https://appshunter.io/developer/1345981432) |

## What reviewers say

### CKey

[App page](https://appshunter.io/ios/app/ckey/id1595125340)

This system provides proprietary access control for premises. It allows users to manage entry and exit permissions for various locations. The application is designed for security and administrative purposes.

**Highlights:** Access control management, Premises security, Entry/exit permissions, Proprietary system

**In-app purchases:** none


### Nimbus Digital

[App page](https://appshunter.io/ios/app/nimbus-digital/id6475592902)

This app unifies fire safety compliance tools, enabling users to log weekly tests, receive instant alerts for system events, and access on-site engineering data. It simplifies fire safety management for building managers, facilities teams, and fire system engineers, ensuring compliance with UK regulations.

**Highlights:** Log weekly fire alarm tests, Receive instant fire system alerts, Access real-time panel data, Manage service visits, Capture on-site compliance records, Ensure UK compliance requirements

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

**In-app purchases:** none


## Frequently asked questions

### Is CKey free?

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

### Is Nimbus Digital free?

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

### Do CKey or Nimbus Digital have ads?

Neither CKey nor Nimbus Digital shows ads.

### Which is updated more often, CKey or Nimbus Digital?

CKey ships an update every 4 months, and Nimbus Digital every 2 weeks. Most recently, CKey was updated on October 5, 2026 and Nimbus Digital on October 2, 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.*