# ABCx3 vs Killer Sudoku

The clearest difference is ads: ABCx3 at none against Killer Sudoku's shown. ABCx3 also leads on update cadence (every 2 days vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. ABCx3 sells 5 in-app purchases, starting at $0.99 per month and Killer Sudoku sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ABCx3 ships an update every 2 days, Killer Sudoku every 3 months. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | ABCx3 | Killer Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 3 months |
| Size | 139 MB | 131 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AB Cx3](https://appshunter.io/developer/1721741421) | [SyGame](https://appshunter.io/developer/1367827155) |

## What reviewers say

### ABCx3

[App page](https://appshunter.io/ios/app/abcx3/id6474488261)

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $0.99 | per month |
| Premium | $7.49 | per year |
| 10 Game Board Credits | $0.99 | one-time |
| 30 Game Board Credits | $1.99 | one-time |
| 100 Game Board Credits | $5.99 | one-time |


### Killer Sudoku

[App page](https://appshunter.io/ios/app/killer-sudoku-brain-puzzle/id6760898039)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $9.99 | one-time |


## Frequently asked questions

### Is ABCx3 free?

ABCx3 is free to download, with in-app purchases available.

### Is Killer Sudoku free?

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

### Do ABCx3 or Killer Sudoku have ads?

Killer Sudoku shows ads; ABCx3 does not.

### Which is updated more often, ABCx3 or Killer Sudoku?

ABCx3 ships an update every 2 days, and Killer Sudoku every 3 months. Most recently, ABCx3 was updated on November 8, 2026 and Killer Sudoku on November 5, 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.*