# PolyFill vs Sudoku Classic Game

The clearest difference is rating: Sudoku Classic Game at 5.0 against PolyFill's 2.3. PolyFill's advantage is ratings volume (3 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. PolyFill sells 3 one-off in-app purchases and Sudoku Classic Game sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Sudoku Classic Game holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

PolyFill ships an update every 6 months, Sudoku Classic Game every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | PolyFill | Sudoku Classic Game |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/polyfill/id987147033/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sudoku-classic-game/id1634008440/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 15 MB | 104 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Kelly Technology Inc.](https://appshunter.io/developer/393931941) | [NICMIT](https://appshunter.io/developer/1596507688) |

## 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 |


### Sudoku Classic Game

[App page](https://appshunter.io/ios/app/sudoku-classic-game/id1634008440)

This classic number puzzle game offers a pure, instant fun experience for all skill levels. Train your brain, relax, or kill time with logic-based challenges that can be played offline. Features include hints, auto-check, and unlimited undos.

**Highlights:** Multiple difficulty levels, Hints and auto-check, Unlimited undos, Offline play, Auto-save progress, Highlighting for rows, columns, and duplicates

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Hints | $0.99 | one-time |
| Remove Ads | $1.99 | one-time |
| 50 Hints | $1.99 | one-time |
| 250 Hints | $3.99 | one-time |


## Frequently asked questions

### Is PolyFill free?

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

### Is Sudoku Classic Game free?

Sudoku Classic Game is free to download, with in-app purchases available.

### Which has better reviews, PolyFill or Sudoku Classic Game?

Sudoku Classic Game is rated higher. PolyFill averages 2.3 out of 5 from 3 ratings, while Sudoku Classic Game averages 5.0 from 1 ratings.

### Do PolyFill or Sudoku Classic Game have ads?

Both PolyFill and Sudoku Classic Game show ads.

### Which is updated more often, PolyFill or Sudoku Classic Game?

PolyFill ships an update every 6 months, and Sudoku Classic Game every 3 months. Most recently, PolyFill was updated on November 1, 2026 and Sudoku Classic Game on November 3, 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.*