---
title: "Killer Sudoku CTC — App Overview"
url: https://marlvel.ai/intel-report/games/com-studiogoya-killersudoku
category: Games
developer: Nick Carney
platforms: ios, android
rating: 4.5 (376 ratings)
pricing: paid
report_level: overview
generated: 2026-04-18
last_verified: "2026-04-18T23:12:14.152Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** The app is highly regarded for its interface and puzzle quality, though users note potential UX improvements regarding undo functionality and difficulty balancing.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Games |
| Rating | 4.5 ★ (376) |
| Pricing | paid |
| Platforms | iOS, Android |
| Latest Version (iOS) | 1.2 |
| Latest Version (Android) | VARY |
| Developer | Nick Carney |

<!-- SECTION: Summary -->
## What is Killer Sudoku CTC?

Killer Sudoku CTC is a puzzle application featuring handmade Killer Sudoku variants curated by the Cracking The Cryptic YouTube channel hosts. It provides a structured solving experience with human-written hints and a focus on logical progression for enthusiasts of the variant.

<!-- SECTION: Key Features -->
## Key Features

- **Handmade Puzzles**: Includes a collection of puzzles created by Simon, Mark, and various guest authors.
- **Human-Written Hint System**: Provides guidance written by the app developers to help users master solving techniques.
- **Killer Sudoku Mechanics**: Features cage-based puzzles that require players to use sum-based logic to solve the grid.
- **Regular Content Updates**: The app is periodically updated with new standard and beginner-level puzzle sets.

<!-- SECTION: Target Audience -->
## Who is it for?

Sudoku enthusiasts and fans of the Cracking The Cryptic channel looking for high-quality, logic-based puzzle variants.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/killer-sudoku-ctc/id1544165118?uo=2)
- [Google Play](https://play.google.com/store/apps/details?id=com.StudioGoya.KillerSudoku&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/intel-report/games/com-studiogoya-killersudoku)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/games/com-studiogoya-killersudoku).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*