# Nuki Smart Lock vs casavi

The clearest difference is ratings volume: Nuki Smart Lock at 515 against casavi's 31. Nuki Smart Lock also leads on review sentiment (90% vs 78%). On price, rating, update cadence and ads there is nothing between them.

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

Nuki Smart Lock holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Nuki Smart Lock has 515 ratings behind it against 31, so its average is the more settled of the two. Written reviews point the same way: 90% of Nuki Smart Lock's written reviews are positive against 78% of casavi's.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 26, 2026.

## The numbers

| Metric | Nuki Smart Lock | casavi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (515 ratings)](https://appshunter.io/ios/app/nuki-smart-lock/id1044998081/reviews)** | [4.5 (31 ratings)](https://appshunter.io/ios/app/casavi/id1104203456/reviews) |
| Number of ratings | **515** | 31 |
| Positive reviews | **90.2% of reviews** | 78.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 298 MB | 55 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nuki Home Solutions GmbH](https://appshunter.io/developer/966180578) | [casavi GmbH](https://appshunter.io/developer/1059696293) |

## What reviewers say

### Nuki Smart Lock

[App page](https://appshunter.io/ios/app/nuki-smart-lock/id1044998081)

Transform your smartphone into a secure digital key for your home. Grant and manage access for family and friends, and monitor who enters and when. Enjoy convenient features like automatic unlocking and locking, with easy DIY installation and smart home integration.

**Highlights:** Turn phone into a key, Share access permissions, Activity log, Auto Unlock/Lock, Night Mode, Smart Home integration, DIY installation

**Features:** Apple Watch app

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 🔒 Secure
- 👍 Convenient features
- 🔑 Works with existing locks
- ⚙️ Customizable settings

**What reviewers complain about**

- 🐛 Occasional connectivity issues
- 🔋 Battery life concerns
- 🕰️ Slow response times
- 🤔 Confusing UI/UX

**Reported bugs**

- Unreliable geofencing
- Inconsistent unlock/lock functionality
- Buggy app updates

**Requested features**

- Improved battery status monitoring
- Customizable auto-lock/unlock timers
- Stronger HomeKit/Alexa integration
- Ability to create/share access codes


### casavi

[App page](https://appshunter.io/ios/app/casavi/id1104203456)

This app facilitates communication between residents, property owners, caretakers, and property managers. It allows for receiving important notifications, reporting damages with photos, and exchanging messages within the living environment. Users also gain access to helpful articles and documents.

**Highlights:** Important notifications and updates, Damage reporting with photos, Direct messaging within the community, Access to documents 24/7, Community classifieds and offers, Helpful articles for residents

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

**In-app purchases:** none


## Frequently asked questions

### Is Nuki Smart Lock free?

Nuki Smart Lock is free to download, with no in-app purchases.

### Is casavi free?

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

### Which has better reviews, Nuki Smart Lock or casavi?

Nuki Smart Lock is rated higher. Nuki Smart Lock averages 4.7 out of 5 from 515 ratings, while casavi averages 4.5 from 31 ratings.

### Do Nuki Smart Lock or casavi have ads?

Neither Nuki Smart Lock nor casavi shows ads.

### Which is updated more often, Nuki Smart Lock or casavi?

Nuki Smart Lock ships an update every 3 weeks, and casavi every 3 weeks. Most recently, Nuki Smart Lock was updated on October 26, 2026 and casavi on October 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*