# Nuki Smart Lock vs washMaster

The clearest difference is review sentiment: Nuki Smart Lock at 90% against washMaster's 0%. Nuki Smart Lock also leads on rating (4.7 vs 3.7) and update cadence (every 3 weeks vs every 2 months). washMaster's advantage is iOS requirement (14.0 vs 16.0). 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.

Nuki Smart Lock holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Nuki Smart Lock has 514 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 0% of washMaster's.

Nuki Smart Lock ships an update every 3 weeks, washMaster every 2 months. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Nuki Smart Lock | washMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (514 ratings)](https://appshunter.io/ios/app/nuki-smart-lock/id1044998081/reviews)** | [3.7 (31 ratings)](https://appshunter.io/ios/app/washmaster/id1596439683/reviews) |
| Number of ratings | **514** | 31 |
| Positive reviews | **90.2% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 298 MB | 14 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nuki Home Solutions GmbH](https://appshunter.io/developer/966180578) | [Schulthess Maschinen AG](https://appshunter.io/developer/1436165703) |

## 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


### washMaster

[App page](https://appshunter.io/ios/app/washmaster/id1596439683)

Manage and pay for washing machine cycles directly from your smartphone. Reserve machines, receive status notifications, and complete payments quickly and easily via QR code. Enjoy a fully digital laundry experience.

**Highlights:** Machine reservations, Status notifications, Smartphone payment via QR code, Digital laundry experience, Account linking with RFID card

**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 washMaster free?

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

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

Nuki Smart Lock is rated higher. Nuki Smart Lock averages 4.7 out of 5 from 514 ratings, while washMaster averages 3.7 from 31 ratings.

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

Neither Nuki Smart Lock nor washMaster shows ads.

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

Nuki Smart Lock ships an update every 3 weeks, and washMaster every 2 months. Most recently, Nuki Smart Lock was updated on October 15, 2026 and washMaster on October 7, 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.*