# Kidde vs Serendipity Sanctuary

The clearest difference is review sentiment: Serendipity Sanctuary at 100% against Kidde's 45%. Serendipity Sanctuary also leads on update cadence (every 6 days vs every 2 months) and rating (5.0 vs 4.7). Kidde's advantage is ratings volume (7.1K vs 3) and device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Kidde sells 2 in-app purchases, starting at $1.99 per month and Serendipity Sanctuary sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Serendipity Sanctuary holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Kidde has 7.1K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 45% of Kidde's written reviews are positive against 100% of Serendipity Sanctuary's.

Kidde ships an update every 2 months, Serendipity Sanctuary every 6 days. The most recent releases landed on November 11, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Kidde | Serendipity Sanctuary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (7.1K ratings)](https://appshunter.io/ios/app/kidde/id942334464/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/serendipity-sanctuary/id6814609883/reviews)** |
| Number of ratings | **7.1K** | 3 |
| Positive reviews | 44.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 88 MB | 50 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Walter Kidde Portable Equipment](https://appshunter.io/developer/942334463) | [Christina Ante Woodson](https://appshunter.io/developer/6814609885) |

## What reviewers say

### Kidde

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

Monitor your home's safety with real-time alerts for smoke, CO, and water leaks. This app integrates with smart devices, offering advanced indoor air quality insights and notifications for device maintenance.

**Highlights:** Real-time alarm notifications, Smart Hush® functionality, QR code setup, Device replacement alerts, Advanced Mold Risk Analysis, Thermal Comfort readings, Weekly air quality reports

**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


### Serendipity Sanctuary

[App page](https://appshunter.io/ios/app/serendipity-sanctuary/id6814609883)

This app offers a personalized space for intentional living, self-discovery, and daily reflection. It combines daily rituals, cosmic insights, and mindful moments to help users reconnect with themselves and create space for what matters.

**Highlights:** Personalized daily guidance, Cosmic profile with astrological insights, Mindful moments for reflection, Lunar-inspired guidance, Customizable daily practice, Intentional living tools

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Serendipity Sanctuary Monthly | $9.99 | per month |
| Serendipity Sanctuary Annual | $89.99 | per year |


## Frequently asked questions

### Is Kidde free?

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

### Is Serendipity Sanctuary free?

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

### Which has better reviews, Kidde or Serendipity Sanctuary?

Serendipity Sanctuary is rated higher. Kidde averages 4.7 out of 5 from 7.1K ratings, while Serendipity Sanctuary averages 5.0 from 3 ratings.

### Do Kidde or Serendipity Sanctuary have ads?

Neither Kidde nor Serendipity Sanctuary shows ads.

### Which is updated more often, Kidde or Serendipity Sanctuary?

Kidde ships an update every 2 months, and Serendipity Sanctuary every 6 days. Most recently, Kidde was updated on November 11, 2026 and Serendipity Sanctuary on November 6, 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.*