# PolyFill vs Fold

The clearest difference is in-app purchases: Fold at none against PolyFill's 3. Fold also leads on ads (none vs shown). PolyFill's advantage is iOS requirement (14.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. PolyFill sells 3 one-off in-app purchases. Fold asks for nothing beyond the download.

## The numbers

| Metric | PolyFill | Fold |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/polyfill/id987147033/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 2 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Kelly Technology Inc.](https://appshunter.io/developer/393931941) | [Tim Smith](https://appshunter.io/developer/1873625123) |

## What reviewers say

### PolyFill

[App page](https://appshunter.io/ios/app/polyfill/id987147033)

A brain-training puzzle game where you race against the clock to assemble geometric shapes. Earn points based on difficulty and speed, and compete on leaderboards. Unlock additional complexity and scoring through optional in-app purchases.

**Highlights:** Brain-training puzzles, Timed challenges, Geometric shape assembly, Scoring based on difficulty and time, Game Center leaderboards, Achievement awards, In-app purchases for complexity

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads. | $1.99 | one-time |
| Unlock level 2 | $1.99 | one-time |
| Unlock level 3 | $1.99 | one-time |


### Fold

[App page](https://appshunter.io/ios/app/fold-up/id6758557886)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PolyFill free?

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

### Is Fold free?

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

### Do PolyFill or Fold have ads?

PolyFill shows ads; Fold 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.*