# Sudoku Variants vs ChainsDecryptors

The clearest difference is ads: ChainsDecryptors at none against Sudoku Variants's shown. ChainsDecryptors also leads on iOS requirement (13.0 vs 18.0). Sudoku Variants's advantage is update cadence (every 6 weeks vs every 6 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Sudoku Variants sells 7 in-app purchases, starting at $2.99 per month and ChainsDecryptors sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Sudoku Variants ships an update every 6 weeks, ChainsDecryptors every 6 months. The most recent releases landed on October 19, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Sudoku Variants | ChainsDecryptors |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (22 ratings)](https://appshunter.io/ios/app/sudoku-variants-40-plus-puzzles/id1504763943/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 6 months |
| Monetization | Freemium | — |
| Size | 170 MB | 36 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KEREM BAYDOGAN](https://appshunter.io/developer/846765774) | [ChainsDecryptors LTD](https://appshunter.io/developer/1693918568) |

## What reviewers say

### Sudoku Variants

[App page](https://appshunter.io/ios/app/sudoku-variants-40-plus-puzzles/id1504763943)

Engage your mind with a diverse collection of 20 logic and number puzzles. Featuring progressively challenging levels and thousands of free brain teasers, this app offers entertaining and educational gameplay for all skill levels.

**Highlights:** 20 different puzzle games, Increasingly difficult levels, Thousands of free puzzles, Sudoku variations, Logic grid puzzles, Number deduction challenges

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (1 Month) | $2.99 | per month |
| Premium (3 Months) | $7.99 | per 3 months |
| Premium (6 Months) | $12.99 | per 6 months |
| Premium (12 Months) | $19.99 | per year |
| Tokens x100 | $0.99 | one-time |
| Tokens x300 | $1.99 | one-time |
| Tokens x500 | $2.99 | one-time |


### ChainsDecryptors

[App page](https://appshunter.io/ios/app/chainsdecryptors/id6450559572)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All access | $3.99 | per month |
| All access | $8.99 | per 3 months |
| All access | $14.99 | per 6 months |
| All access | $25.99 | per year |


## Frequently asked questions

### Is Sudoku Variants free?

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

### Is ChainsDecryptors free?

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

### Do Sudoku Variants or ChainsDecryptors have ads?

Sudoku Variants shows ads; ChainsDecryptors does not.

### Which is updated more often, Sudoku Variants or ChainsDecryptors?

Sudoku Variants ships an update every 6 weeks, and ChainsDecryptors every 6 months. Most recently, Sudoku Variants was updated on October 19, 2026 and ChainsDecryptors on October 10, 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.*