Not Evil Sudoku vs Beamlines
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Not Evil Sudoku
Enjoy a distraction-free Sudoku experience with helpful features like hints and real-time validation. Track your progress, compete globally, and customize the app with themes. Play daily puzzles for free or upgrade for unlimited games and advanced statistics.
- Fully offline play
- No ads or distractions
- Real-time move validation
- Shake for hints
- Daily puzzles with leaderboards
- Customizable themes and icons
- Notes and auto-clear notes
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A joyful sudoku-solving experience built natively for iPhone and iPad and optimized for a zen solving experience free from bloat and distraction. Designed to be easy to play and meet you where ever you are in your sudoku journey: a casual solver or a sudoku pro. Stuck on a puzzle? Shake your phone for hints and turn on move by move validation in settings to get immediate feedback on your solve. Tickle your brain as you learn new solving strategies and customize the app to your taste with themes and alternate app icons. Play a daily puzzle at a difficulty of your choice and see where you stack up with players across the globe. Or just turn off the stopwatch and relax. Key features: - Fully offline: no internet required - No ads or distractions - Real-time move validation to get immediate feedback - Shake for a hint on the next logical move - Leaderboards with assist tracking - Easy, Medium, and Hard difficulty levels - Light/Dark mode - Stopwatch and best time tracking - Notes: Keep track of candidates - Auto-clear Notes: removes candidate numbers automatically in row, column, and box when they become outdated - Speed demon: Lock numbers and place them in multiple tiles at once - Arithmophobia: Sudoku with letters instead of numbers - Daily streak tracking - Daily reminder notifications - Highlighter: tap a number to highlight all its instances on the board - Themes to customize the interface (some require Pro) - Alternate app icons (Pro) - Charts and statistics (Pro): track solve speed over time and puzzle count by difficulty Play the daily puzzle at your preferred difficulty for free without any limits on assists or game features. Upgrade to Pro with a one-time purchase to unlock unlimited games, detailed stats, more themes, and alternate app icons. Pro supports Family Sharing.
Beamlines
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Turn mirrors. Bend light. Light every crystal. Beamlines One light source on a dark grid. Tap a mirror and the beam turns; send it through a prism and it splits into three colors. Clear the level when every crystal glows in its own color. ■ How to play · Tap a piece to rotate it. No dragging, no run button · The beam is always flowing, so the path redraws the instant you turn something · Fewer moves means more stars ■ Features · 180 hand-built levels across 9 worlds — mirrors, walls, color filters, splitters, prisms, color mixing, mastery, twin lights, expert · No tutorial text. The first level of each world teaches the new piece by letting you touch it · A new daily puzzle every day, with streaks and world rankings · The 180 main levels are ranked too - a board for every level, plus an overall standing · Ads never interrupt a puzzle, and Unlock All removes them entirely · No timers, no lives, no energy. Think as long as you like · Hints are never sold for money. Watch a short ad for one — we ask first — and every level is solvable without it ■ How color works · Red + green = yellow. Light adds up · Color filters subtract from the beam passing through · A prism splits white light three ways, and the direction you feed it decides where each color goes ■ What's free · Worlds 1-3 (60 levels) and the daily puzzle are free · Worlds 4-9 can be bought as single packs or opened together with Unlock All · Unlock All also includes future world packs Terms of Use (EULA): https://www.apple.com/legal/internet-services/
Screenshots
Verdict
The clearest difference is ads: Not Evil Sudoku at none against Beamlines's shown. On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Not Evil Sudoku sells 1 one-off in-app purchase and Beamlines sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Not Evil Sudoku ships an update every 9 days, Beamlines every 8 days. The most recent releases landed on November 7, 2026 and November 2, 2026 respectively.
| Parameter | Not Evil Sudoku | Beamlines |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (1.1K ratings) — better | — |
| Positive reviews | 74.7% of reviews | — |
| Number of ratings | 1.1K — better | — |
| Update frequency | Every 9 days | Every 8 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15 | 15.0 |
| Further details — not scored | ||
| Size | 23 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Ashish Selvaraj | KYUNGROK KIM |
Bugs and requests
Not Evil Sudoku
Reported bugs
2 issues- Disappearing numbers when closing the app
- Numbers swapping to incorrect spots
Requested features
6 requests- Add auto-clear notes option without move validation
- Provide more theme color options
- Implement a 'warm' mode similar to other sudoku apps
- Add ability to remove notes after number is placed
- Highlight all instances of a number in the puzzle
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- Remove a number as a choice when it has been placed successfully
Beamlines
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Not Evil Sudoku
- Pro$4.99
Beamlines
- 월드 8 · 두 개의 빛$0.99
- 월드 9 · 달인$0.99
- 월드 7 · 종합$0.99
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- 월드 4 · 분광기$0.99
- 월드 5 · 프리즘$0.99
- 월드 6 · 색 합성$0.99
- 빛 전체 해금$4.99









