# SmartCocoon vs KZero Passwordless

The clearest difference is review sentiment: KZero Passwordless at 100% against SmartCocoon's 20%. KZero Passwordless also leads on rating (4.5 vs 2.0). SmartCocoon's advantage is update cadence (fortnightly vs every 5 weeks) and ratings volume (6 vs 2). 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.

KZero Passwordless holds the better App Store score, 4.5 against 2.0. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews point the same way: 20% of SmartCocoon's written reviews are positive against 100% of KZero Passwordless's.

SmartCocoon ships an update fortnightly, KZero Passwordless every 5 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | SmartCocoon | KZero Passwordless |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (6 ratings)](https://appshunter.io/ios/app/smartcocoon/id1373026306/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/kzero-passwordless/id1672389184/reviews)** |
| Number of ratings | **6** | 2 |
| Positive reviews | 20.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 62 MB | 62 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Smart Cocoon Inc](https://appshunter.io/developer/1373026305) | [Kelvin Zero](https://appshunter.io/developer/1670753149) |

## What reviewers say

### SmartCocoon

[App page](https://appshunter.io/ios/app/smartcocoon/id1373026306)

This app works with smart booster fans to provide intelligent climate control for your home. Manage and control individual room temperatures remotely via the app, or let the system automatically sync with your thermostat and furnace for optimal comfort.

**Highlights:** Smart booster fan integration, Remote register control, Automatic thermostat syncing, Furnace synchronization, App-based temperature management

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

**In-app purchases:** none

**What reviewers like**

- 👍 Effective temperature control
- 👍 Good for far located vents
- 👍 Long-lasting performance (4+ years)
- 👍 App improvements over time
- 👍 Easy setup (for some users)

**What reviewers complain about**

- 😞 Noisy at higher speeds
- 😞 App freezes/crashes frequently
- 😞 Connection issues (Wi-Fi disconnects)
- 😞 Inaccurate temperature readings
- 😞 Poor integration with other smart devices (Ecobee, Nest)

**Reported bugs**

- App freezes when keyboard appears
- App does not send email link
- App freezes when adding a room
- App gets stuck too often
- App crashes while using

**Requested features**

- Option to adjust fan speed in schedules
- Store settings for summer and winter
- Copy function for schedules
- Add Amazon Alexa/other smart device integration
- Ability to turn fan on without furnace running


### KZero Passwordless

[App page](https://appshunter.io/ios/app/kzero-passwordless/id1672389184)

This app provides passwordless authentication for users of the Multi-Pass Pro card. It allows for secure sign-ins to web applications and MPAS services using push notifications and the Pro card. Users can also manage and access information about their Multi-Pass Pro card.

**Highlights:** Passwordless sign-in, Push notification authentication, Manage Multi-Pass Pro card information, Enroll Multi-Pass Pro card, Secure access to web applications

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

**In-app purchases:** none


## Frequently asked questions

### Is SmartCocoon free?

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

### Is KZero Passwordless free?

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

### Which has better reviews, SmartCocoon or KZero Passwordless?

KZero Passwordless is rated higher. SmartCocoon averages 2.0 out of 5 from 6 ratings, while KZero Passwordless averages 4.5 from 2 ratings.

### Do SmartCocoon or KZero Passwordless have ads?

Neither SmartCocoon nor KZero Passwordless shows ads.

### Which is updated more often, SmartCocoon or KZero Passwordless?

SmartCocoon ships an update fortnightly, and KZero Passwordless every 5 weeks. Most recently, SmartCocoon was updated on October 24, 2026 and KZero Passwordless on October 24, 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.*