# Polycheck vs Heavyday

Polycheck and Heavyday are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Polycheck sells 2 in-app purchases, starting at $3.99 per month and Heavyday sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Polycheck ships an update every 5 days, Heavyday every 3 days. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Polycheck | Heavyday |
| --- | --- | --- |
| 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 | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | Subscription | — |
| Size | 21 MB | 51 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Renaissance Apps LLC](https://appshunter.io/developer/1220536592) | [Ranbir Singh](https://appshunter.io/developer/1835608045) |

## 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 |


### Heavyday

[App page](https://appshunter.io/ios/app/heavyday-gym-workout-planner/id6809559739)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $9.99 | per month |
| Yearly | $49.99 | per year |


## Frequently asked questions

### Is Polycheck free?

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

### Is Heavyday free?

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

### Do Polycheck or Heavyday have ads?

Neither Polycheck nor Heavyday shows ads.

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

Polycheck ships an update every 5 days, and Heavyday every 3 days. Most recently, Polycheck was updated on October 24, 2026 and Heavyday on October 9, 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.*