Comparison

Dr Evil's Math Challenge Game vs Murder Matrix

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Dr Evil's Math Challenge Game

A unique number puzzle game blending Sudoku mechanics with arithmetic challenges. Solve puzzles by making cells in 3x3 houses add up to 10, with added column sum targets in advanced modes. Enjoy a 1970s disco game show theme with a funky soundtrack and a mad-scientist host.

Highlights
  • Arithmetic number puzzles
  • Sudoku-like house sums
  • Column sum targets (Gauntlet mode)
  • Daily challenges
  • Multiple difficulty levels
  • Disco funk soundtrack
  • Interactive tutorial
Features
Read full description

Think Sudoku, but with arithmetic and a whole lot of disco. Welcome to Dr Evil's Math Lab. Fill every 3x3 house so all nine cells add up to exactly 10. Sounds simple? Try it with 25 houses on the board and column targets breathing down your neck. Dr Evil's Math Challenge is a number puzzle game wrapped in a 1970s game show theme—complete with a disco funk soundtrack, a theatrical mad-scientist host, and enough groovy style to make your calculator jealous. WHAT'S INCLUDED - Easy, Medium, and Hard difficulty (4, 9, or 16 houses) - Daily challenges with a new puzzle every day - Interactive tutorial hosted by Dr Evil himself - The Gauntlet on Easy: column sum targets that add a second layer of challenge - Game Center leaderboard - Two funky soundtrack tracks - Drag-and-drop or tap-to-place controls - Save and resume your game anytime - Full stats: games played, best times, daily streaks THE GAUNTLET — YOUR NEW OBSESSION This is not just another number puzzle. In Gauntlet mode, every column on the board has a target sum. Houses must still add to 10, AND columns must match their targets. One correct arrangement. Zero room for error. It turns a relaxing puzzle into a genuine brain workout. GO PRO — UNLOCK EVERYTHING - Expert mode: 5x5 grid with 25 houses and 225 cells - Expert daily challenges - The Gauntlet on all difficulties - 14 additional disco funk tracks (16 total) - Advanced stats: streaks, trends, per-difficulty breakdowns - Gauntlet-specific performance tracking - Daily challenge archive: 90 days of past puzzles - Unlimited undo (standard play includes one per game) HOW TO PLAY 1. Tap a number tile in the deck to pick it up 2. Tap an empty cell in any house to place it 3. Fill all nine cells so the house sums to exactly 10 4. Complete every house on the board to win Drag tiles directly onto the board, swap placed tiles, or use the undo button. The interactive tutorial walks you through it in under 90 seconds. FEATURES AT A GLANCE - 4 difficulty levels: Easy, Medium, Hard, Expert - Daily challenges with streak tracking - The Gauntlet: column sum target mode - 16 original disco funk music tracks - 10 Dr Evil character poses and animations - Pinch-to-zoom on larger boards - Universal app: iPhone and iPad Dr Evil is waiting... impatiently. Download now to start your daily brain training and see if you can beat The Gauntlet!

About

Murder Matrix

Engage in daily murder mystery logic puzzles where you deduce the killer using clues and a grid. It's a brain-teasing challenge perfect for fans of detective stories and logic games.

Highlights
  • Daily murder mystery logic puzzles
  • Grid-based clue deduction
  • No guessing required
  • Adjustable difficulty levels
  • No ads or timers
  • Verify and undo tools
Features
Read full description

Find the Killer. Solve the Case. Welcome to Murder Matrix, the best new way to play murder mystery logic puzzles. If you like board games like Clue or Cluedo, or if you enjoy Sudoku, you will love this brain-teasing challenge. Can you use simple logic to find out who the killer is? HOW TO PLAY: A crime has happened in a sealed house. You get a grid and a list of clues. Your job is to figure out where every suspect was standing. - Use clues like "The Butler was next to the Bookshelf." - Cross off the people who couldn't be there. - The last person left in the room with the victim is the killer! WHY YOU'LL LOVE IT: - New Puzzles Every Day: Get a fresh murder mystery logic puzzle every single morning. Keep your winning streak going! - No Guessing Needed: Every puzzle has one right answer. You just need to use your brain to find it. - Easy to Hard: Whether you want a quick 5-minute game or a 20-minute challenge, we have the right level for you. - No Ads, No Timers: Play at your own pace without annoying interruptions. Just pure, relaxing puzzle fun. - Cool Tools: Use the "Verify" button to check your work and the "Undo" button if you make a mistake. PERFECT FOR: If you like Einstein Riddles, zebra puzzles, or just a good detective story, Murder Matrix is for you. It's a great way to keep your mind sharp and feel like a real detective. Inspired by Murdoku, the original puzzle by Manuel Garand. Download Murder Matrix now and solve your first case today!

Screenshots

Dr Evil's Math Challenge Game4 screens
Murder Matrix4 screens

Verdict

The call

The clearest difference is update cadence: Murder Matrix at weekly against Dr Evil's Math Challenge Game's every 91 months. Murder Matrix also leads on monetization model (free vs free with in-app purchases) and ratings volume (33 vs 2). Dr Evil's Math Challenge Game's advantage is rating (5.0 vs 4.8). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Dr Evil's Math Challenge Game sells 3 one-off in-app purchases and Murder Matrix sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Dr Evil's Math Challenge Game holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Murder Matrix has 33 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 67% of Dr Evil's Math Challenge Game's written reviews are positive against 75% of Murder Matrix's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Dr Evil's Math Challenge Game ships an update every 91 months, Murder Matrix weekly. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 4 level
Dr Evil's Math Challenge Game versus Murder Matrix: the parameters behind the verdict, then further details
ParameterDr Evil's Math Challenge GameMurder Matrix
PriceFreeFree
Rating5.0 (2 ratings) — better4.8 (33 ratings)
Positive reviews66.7% of reviews75.0% of reviews — better
Number of ratings233 — better
Update frequencyEvery 91 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size322 MB15 MB
Age rating4+9+
DeveloperSocially Conscious Software LLCDiogo Alves

Customer experience

Dr Evil's Math Challenge Game

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Murder Matrix

All ratings33 ratings
Positive90.9%
Neutral6.1%
Negative3.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

3 purchases

Dr Evil's Math Challenge Game

One-time3
  • Unlock Medium$0.99
  • Unlock Hard$0.99
  • Unlock Pro$0.99
3 purchases

Murder Matrix

One-time3
  • Sci-Fi Pack$1.99
  • Halloween Pack$1.99
  • Summer Pack$1.99

Questions

Is Dr Evil's Math Challenge Game free?
Dr Evil's Math Challenge Game is free to download, with in-app purchases available.
Is Murder Matrix free?
Murder Matrix is free to download, with in-app purchases available.
Which has better reviews, Dr Evil's Math Challenge Game or Murder Matrix?
Dr Evil's Math Challenge Game is rated higher. Dr Evil's Math Challenge Game averages 5.0 out of 5 from 2 ratings, while Murder Matrix averages 4.8 from 33 ratings.
Do Dr Evil's Math Challenge Game or Murder Matrix have ads?
Neither Dr Evil's Math Challenge Game nor Murder Matrix shows ads.
Which is updated more often, Dr Evil's Math Challenge Game or Murder Matrix?
Dr Evil's Math Challenge Game ships an update every 91 months, and Murder Matrix weekly. Most recently, Dr Evil's Math Challenge Game was updated on November 6, 2026 and Murder Matrix on November 5, 2026.

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