# Smart Purifier vs Find Air

The clearest difference is review sentiment: Find Air at 55% against Smart Purifier's 0%. Find Air also leads on rating (4.6 vs 1.0) and ratings volume (654 vs 2). Smart Purifier's advantage is in-app purchases (none vs 6) and iOS requirement (11.0 vs 14.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Find Air sells 5 in-app purchases, starting at $6.99 per 7 days. Smart Purifier asks for nothing beyond the download.

Find Air holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Find Air has 654 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Smart Purifier's written reviews are positive against 55% of Find Air's.

Smart Purifier ships an update fortnightly, Find Air every 2 weeks. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Smart Purifier | Find Air |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/smart-purifier/id1535735160/reviews) | **[4.6 (654 ratings)](https://appshunter.io/ios/app/find-air-tracker-detector/id6740757062/reviews)** |
| Number of ratings | 2 | **654** |
| Positive reviews | 0.0% of reviews | **55.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | **Free** | Subscription |
| Size | 115 MB | 48 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VIETTEL GROUP](https://appshunter.io/developer/1529233160) | [FireAI Ltd](https://appshunter.io/developer/1698289772) |

## What reviewers say

### Smart Purifier

[App page](https://appshunter.io/ios/app/smart-purifier/id1535735160)

Monitor and control your Smart Purifier air quality device. View real-time air quality data and adjust settings remotely. Ensure a healthy living environment with this connected appliance management tool.

**Highlights:** Remote device control, Real-time air quality monitoring, Device settings adjustment, Air purification management, Connected appliance integration

**In-app purchases:** none


### Find Air

[App page](https://appshunter.io/ios/app/find-air-tracker-detector/id6740757062)

Easily locate misplaced Bluetooth devices like headphones, smartwatches, and fitness trackers. Utilize a map and signal strength radar to pinpoint their whereabouts. Find your gadgets quickly and efficiently.

**Highlights:** Locate Bluetooth devices, Track devices on map, Signal strength radar, Find headphones, tablets, laptops, fitness trackers, Fast and easy to use

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $6.99 | per 7 days |
| Premium | $9.99 | per 7 days |
| Premium | $29.99 | per year |
| Premium | $39.99 | per year |
| Premium | $49.99 | per year |


## Frequently asked questions

### Is Smart Purifier free?

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

### Is Find Air free?

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

### Which has better reviews, Smart Purifier or Find Air?

Find Air is rated higher. Smart Purifier averages 1.0 out of 5 from 2 ratings, while Find Air averages 4.6 from 654 ratings.

### Do Smart Purifier or Find Air have ads?

Neither Smart Purifier nor Find Air shows ads.

### Which is updated more often, Smart Purifier or Find Air?

Smart Purifier ships an update fortnightly, and Find Air every 2 weeks. Most recently, Smart Purifier was updated on October 24, 2026 and Find Air on October 30, 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.*