# Polycheck vs Lungs

The clearest difference is in-app purchases: Lungs at none against Polycheck's 2. Lungs also leads on update cadence (daily vs every 5 days). Polycheck's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Polycheck sells 2 in-app purchases, starting at $3.99 per month. Lungs asks for nothing beyond the download.

Polycheck ships an update every 5 days, Lungs daily. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Polycheck | Lungs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (8 ratings)](https://appshunter.io/ios/app/polycheck-find-microplastics/id6739971441/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 days | **Daily** |
| Monetization | Subscription | — |
| Size | 21 MB | 6 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Renaissance Apps LLC](https://appshunter.io/developer/1220536592) | [MATEUSZ MATYSZCZUK](https://appshunter.io/developer/1888980972) |

## What reviewers say

### Polycheck

[App page](https://appshunter.io/ios/app/polycheck-find-microplastics/id6739971441)

This app uses AI to scan everyday products, like food and cosmetics, to detect microplastics. It provides insights into product risks and suggests safer alternatives, helping you make informed choices for your health and the environment.

**Highlights:** AI-powered microplastic detection, Scan food and cosmetic products, Product risk insights, Safer alternative suggestions, Track scanned items, Sustainability goal tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plastic AI Monthly Sub | $3.99 | per month |
| Plastic AI Annual Sub | $24.99 | per year |


### Lungs

[App page](https://appshunter.io/ios/app/lungs-quit-smoking-assistant/id6761337358)

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

**In-app purchases:** none


## Frequently asked questions

### Is Polycheck free?

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

### Is Lungs free?

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

### Do Polycheck or Lungs have ads?

Lungs shows ads; Polycheck does not.

### Which is updated more often, Polycheck or Lungs?

Polycheck ships an update every 5 days, and Lungs daily. Most recently, Polycheck was updated on October 24, 2026 and Lungs on October 28, 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.*