# Lucido Sudoku

> Lucido Sudoku (iPhone/iPad app by SWATHI NAGIREDDY.)

- Source: https://appshunter.io/ios/app/lucido-sudoku/id6762526851 (this page in markdown: same URL + `.md`)
- Developer: [SWATHI NAGIREDDY](https://appshunter.io/developer/1866102827)
- Category: Games
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 18 MB
- Languages: English
- Released: 2026-04-23
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/lucido-sudoku/id6762526851/reviews.md

## What is Lucido Sudoku?

Lucido Sudoku is the cleanest, most thoughtful Sudoku experience on iPhone and iPad.

Every puzzle is generated using real human solving techniques — the same logic you use when you play. That means difficulty ratings are meaningful, and hints actually teach you something.

WHY LUCIDO?
Most Sudoku apps use brute-force puzzle generation. Lucido uses technique-based solving — Naked Singles, Hidden Singles, Naked Pairs, Locked Candidates, and X-Wing patterns — so every puzzle is fair, graded accurately, and solvable by logic alone.

FEATURES
• Five difficulty levels — Beginner to Expert
• Daily Challenge — one fresh puzzle every day, the same for every player worldwide
• Progressive hints — four levels from gentle nudge to full reveal
• Candidate notes — jot down possibilities, cleared automatically as you solve
• Unlimited undo — step back through any move, no restart needed
• Stats & streaks — track your best times and hint-free completions per difficulty
• Timer — optional, hide it if you prefer a relaxed pace

HINTS THAT TEACH
Tap Hint once for a nudge. Tap again to focus on the right area. Tap again for a technique explanation. One more tap reveals the answer. You decide how much help you want.

DAILY CHALLENGE
A new puzzle resets at midnight. Same seed, same puzzle for every player worldwide — compare your time with anyone.

FREE TO PLAY
Lucido Sudoku is free with non-intrusive banner ads. You get 3 free hints per puzzle. Need more? Watch a short rewarded ad.

Download free. No account needed.


## Version history (last 2 releases)

### 1.0.3 — 2026-05-09

What's New in 1.0.2

Stability improvements and performance optimizations

### 1.0 — 2026-04-23

No release notes.

## More apps by SWATHI NAGIREDDY

- [Passport & Visa Photo Studio](https://appshunter.io/ios/app/passport-and-visa-photo-studio/id6757323239)
- [Qrithm](https://appshunter.io/ios/app/qrithm/id6761696267)
- [TikTakToe Online Multiplayer](https://appshunter.io/ios/app/tiktaktoe-online-multiplayer/id6761936154)

All apps by SWATHI NAGIREDDY: https://appshunter.io/developer/1866102827

## Related topics

[sedoku](https://appshunter.io/ios/topics/sedoku)

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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 2026-05-17.*