# Filtrete Smart vs Recal

The clearest difference is in-app purchases: Filtrete Smart at none against Recal's 2. Filtrete Smart also leads on iOS requirement (15.0 vs 17.0). Recal's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Recal sells 2 in-app purchases, starting at $6.99 per month. Filtrete Smart asks for nothing beyond the download.

## The numbers

| Metric | Filtrete Smart | Recal |
| --- | --- | --- |
| 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 | Yes | **No** |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 100 MB | 16 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [3M Company](https://appshunter.io/developer/396772465) | [FrontierAI](https://appshunter.io/developer/1850190022) |

## What reviewers say

### 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


### Recal

[App page](https://appshunter.io/ios/app/recal/id6757172346)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Recal Monthly | $6.99 | per month |
| Recal Yearly | $49.99 | per year |


## Frequently asked questions

### Is Filtrete Smart free?

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

### Is Recal free?

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

### Do Filtrete Smart or Recal have ads?

Filtrete Smart shows ads; Recal does not.

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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.*