# Kidde vs VOLT SMART

The clearest difference is in-app purchases: VOLT SMART at none against Kidde's 2. On price, update cadence, ads and device support there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Kidde | VOLT SMART |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (6.7K ratings)](https://appshunter.io/ios/app/kidde/id942334464/reviews)** | — |
| Number of ratings | **6.7K** | — |
| Positive reviews | 44.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Freemium | — |
| Size | 88 MB | 245 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Walter Kidde Portable Equipment](https://appshunter.io/developer/942334463) | [LLW Enterprise LLC](https://appshunter.io/developer/1546091884) |

## 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


### VOLT SMART

[App page](https://appshunter.io/ios/app/volt-smart/id6759403974)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Kidde free?

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

### Is VOLT SMART free?

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

### Do Kidde or VOLT SMART have ads?

Neither Kidde nor VOLT SMART shows ads.

### Which is updated more often, Kidde or VOLT SMART?

Kidde ships an update every 2 months, and VOLT SMART every 2 months. Most recently, Kidde was updated on October 13, 2026 and VOLT SMART on October 1, 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.*