# Gridwell: Sudoku & Killer — Sudoku that teaches you

> Sudoku that teaches you (iPhone/iPad app by Nathan Edkin.)

- Source: https://appshunter.io/ios/app/gridwell-sudoku-and-killer/id6785329629 (this page in markdown: same URL + `.md`)
- Developer: [Nathan Edkin](https://appshunter.io/developer/866752258)
- Category: Games, Education, Casual, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 1 MB
- Languages: American English
- Released: 2026-07-02
- Data updated: 2026-08-24
- User reviews in markdown: https://appshunter.io/ios/app/gridwell-sudoku-and-killer/id6785329629/reviews.md

## What is Gridwell?

Gridwell is Sudoku that actually makes you better at Sudoku.

Most apps hand you the answer when you're stuck. Gridwell teaches you the technique instead — it shows you the next logical step and names the strategy behind it, so you learn to spot it yourself next time. Every puzzle is solvable by pure logic. No guessing, ever.

CLASSIC & KILLER SUDOKU
• Hand-crafted Classic Sudoku across four difficulties: Easy, Medium, Hard, and Expert
• Killer Sudoku with cage sums for a deeper challenge
• Every puzzle is guaranteed to have one solution and to be solvable by logic alone

HINTS THAT TEACH
• Stuck? Get a hint that explains the actual solving technique — naked singles, hidden singles, and beyond
• Learn the "why," not just the "what"
• Three free hints on every puzzle

BUILT FOR FOCUS
• Clean, distraction-free board
• Smart highlighting for rows, columns, boxes, matching numbers, and conflicts
• Pencil marks with optional auto-clear
• Undo, erase, and a gentle nudge when you slip
• Beautiful themes, custom accent colors, and full light/dark support

PRIVATE BY DESIGN
• 100% offline — play anywhere, no connection needed
• No ads. No tracking. No accounts. No data collected.
• Your progress stays on your device, always

GRIDWELL PREMIUM
Unlock once, keep forever:
• Unlimited teaching hints
• Premium themes and custom colors
One simple purchase. No subscription. No ads — not now, not ever.

Download Gridwell and start solving smarter.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Gridwell Premium | $4.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-07-02

No release notes.

## More apps by Nathan Edkin

- [APFT Pro Elite](https://appshunter.io/ios/app/apft-pro-elite/id1041734680)
- [Trick or Treat Sweeper - Addictive Halloween Game](https://appshunter.io/ios/app/trick-or-treat-sweeper-addictive-halloween-game/id1046410581)
- [Bro Code Bro - BroBible!](https://appshunter.io/ios/app/bro-code-bro-brobible/id1071573612)
- [Fun Fact!](https://appshunter.io/ios/app/fun-fact/id1071585895)
- [Jumpin Ninja!](https://appshunter.io/ios/app/jumpin-ninja/id1073269911)
- [Chick Code Chick - Chick Bible](https://appshunter.io/ios/app/chick-code-chick-chick-bible/id1317611763)

All apps by Nathan Edkin: https://appshunter.io/developer/866752258

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*