# Filtrete Smart vs Threshold

The clearest difference is in-app purchases: Filtrete Smart at none against Threshold's 2. Filtrete Smart also leads on update cadence (every 2 months vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Threshold sells 2 in-app purchases, starting at $9.99 per month. Filtrete Smart asks for nothing beyond the download.

Filtrete Smart ships an update every 2 months, Threshold every 4 months. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Filtrete Smart | Threshold |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (53K ratings)](https://appshunter.io/ios/app/filtrete-smart/id1340390225/reviews)** | — |
| Number of ratings | **53K** | — |
| Positive reviews | 38.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | — |
| Size | 100 MB | 56 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [3M Company](https://appshunter.io/developer/396772465) | [Jeremy Nichols](https://appshunter.io/developer/1875416904) |

## What reviewers say

### Filtrete Smart

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

Monitor and manage your home's air quality with smart filters and purifiers. Receive alerts for filter replacements based on usage and track outdoor air quality trends. Get personalized tips to improve your indoor environment.

**Highlights:** Pair smart air filters and purifiers, Track filter life based on usage, Receive filter replacement notifications, Remotely control air purifiers, Monitor outdoor air quality, Get tips to improve air quality

**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


### Threshold

[App page](https://appshunter.io/ios/app/threshold-bible-app-blocker/id6758868516)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Threshold Pro Monthly | $9.99 | per month |
| Threshold Pro Yearly | $69.99 | per year |


## Frequently asked questions

### Is Filtrete Smart free?

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

### Is Threshold free?

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

### Do Filtrete Smart or Threshold have ads?

Neither Filtrete Smart nor Threshold shows ads.

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

Filtrete Smart ships an update every 2 months, and Threshold every 4 months. Most recently, Filtrete Smart was updated on November 3, 2026 and Threshold on October 25, 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.*