# Kidde vs Filtrete Smart

The clearest difference is in-app purchases: Filtrete Smart at none against Kidde's 2. Filtrete Smart also leads on ratings volume (53K vs 6.7K). Kidde's advantage is ads (none vs shown). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Kidde sells 2 in-app purchases, starting at $1.99 per month. Filtrete Smart asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Kidde against 4.8 for Filtrete Smart. That said, the two scores are not equally well evidenced: Filtrete Smart has 53K ratings behind it against 6.7K, so its average is the more settled of the two. Written reviews are what separate them: 44% of Kidde's written reviews are positive against 39% of Filtrete Smart's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 17, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Kidde | Filtrete Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (6.7K ratings)](https://appshunter.io/ios/app/kidde/id942334464/reviews) | **[4.8 (53K ratings)](https://appshunter.io/ios/app/filtrete-smart/id1340390225/reviews)** |
| Number of ratings | 6.7K | **53K** |
| Positive reviews | **44.5% of reviews** | 38.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 88 MB | 100 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Walter Kidde Portable Equipment](https://appshunter.io/developer/942334463) | [3M Company](https://appshunter.io/developer/396772465) |

## What reviewers say

### Kidde

[App page](https://appshunter.io/ios/app/kidde/id942334464)

This app connects to smart home safety devices, providing real-time alerts for smoke, CO, air quality, and water leaks. It offers features like Smart Hush, remote notifications to loved ones, and advanced indoor air quality monitoring through a subscription service.

**Highlights:** Real-time alarm notifications, Smart Hush functionality, QR code setup for Wi-Fi connection, Device replacement notifications, Remote notifications to friends/family, Advanced Indoor Air Quality (IAQ) monitoring, Mold Risk Analysis

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Home Health - Monthly | $1.99 | per month |
| Advanced Home Health - Annual | $19.99 | per year |

**What reviewers like**

- 🚀 Easy setup
- 👍 Helpful app features
- 🔒 Provides peace of mind
- 💡 Useful air quality monitoring
- 👍 Good customer support

**What reviewers complain about**

- 🐛 Frequent false alarms
- 🐛 Connectivity issues
- 🐛 Buggy app and firmware
- 👎 Paywalled features
- 👎 Poor user experience

**Reported bugs**

- App unable to connect to devices
- Firmware updates failing
- Devices going offline randomly
- Notifications not working as expected
- Inconsistent device naming in app

**Requested features**

- Add HomeKit support
- Improve historical data tracking
- Provide more detailed temperature/air quality data
- Allow remote alarm silencing
- Enhance app stability and usability


### Filtrete Smart

[App page](https://appshunter.io/ios/app/filtrete-smart/id1340390225)

Manage your home's air quality with smart filter and purifier control. Receive personalized tips, alerts for filter replacement based on usage, and monitor outdoor air quality trends.

**Highlights:** Pair multiple smart air filters, Real-time filter life tracking, Smart air purifier control, Remote device management, Non-smart filter reminders, Outdoor air quality monitoring

**In-app purchases:** none

**What reviewers like**

- 👍 Useful app for monitoring air filters
- 🚀 Convenient filter replacement reminders
- 👍 Helps track filter life and air quality
- 🚀 Easy to use and set up
- 👍 Improves indoor air quality

**What reviewers complain about**

- 🐛 Connectivity issues with filters
- 🐛 Inaccurate filter life estimates
- 🔋 High battery drain on mobile app
- 🔒 Privacy concerns with location tracking
- 💰 Expensive filters compared to regular ones

**Reported bugs**

- Barcode scanning feature not working
- App crashes when trying to add new filters
- Bluetooth connection frequently lost
- Incorrect filter life displayed in app

**Requested features**

- Allow manual filter life input
- Provide more detailed air quality data
- Integrate with other smart home systems
- Add option to disable location tracking
- Improve app stability and reliability


## Frequently asked questions

### Is Kidde free?

Kidde is free to download, with in-app purchases available.

### Is Filtrete Smart free?

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

### Which has better reviews, Kidde or Filtrete Smart?

Filtrete Smart is rated higher. Kidde averages 4.7 out of 5 from 6.7K ratings, while Filtrete Smart averages 4.8 from 53K ratings.

### Do Kidde or Filtrete Smart have ads?

Filtrete Smart shows ads; Kidde does not.

### Which is updated more often, Kidde or Filtrete Smart?

Kidde ships an update every 2 months, and Filtrete Smart every 2 months. Most recently, Kidde was updated on October 17, 2026 and Filtrete Smart on October 21, 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.*