# Abyss Bites vs Sudoku Defense

The clearest difference is iOS requirement: Abyss Bites at 13.0 against Sudoku Defense's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Abyss Bites ships an update monthly, Sudoku Defense every 6 weeks. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Abyss Bites | Sudoku Defense |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 6 weeks |
| Size | 57 MB | 51 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ceylo Varne](https://appshunter.io/developer/6788278291) | [Vevin Blank](https://appshunter.io/developer/6785802259) |

## What reviewers say

### Abyss Bites

[App page](https://appshunter.io/ios/app/abyss-bites-fish-evolution/id6791491348)

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

**In-app purchases:** none


### Sudoku Defense

[App page](https://appshunter.io/ios/app/sudoku-defense-number-war/id6795859721)

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

**In-app purchases:** none


## Frequently asked questions

### Is Abyss Bites free?

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

### Is Sudoku Defense free?

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

### Do Abyss Bites or Sudoku Defense have ads?

Both Abyss Bites and Sudoku Defense show ads.

### Which is updated more often, Abyss Bites or Sudoku Defense?

Abyss Bites ships an update monthly, and Sudoku Defense every 6 weeks. Most recently, Abyss Bites was updated on November 3, 2026 and Sudoku Defense on November 6, 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.*