Comparison

PlaySudoku.io vs Trio Math

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

Head to head
About

PlaySudoku.io

Engage your mind with a classic Sudoku experience featuring customizable interfaces and multiple difficulty levels. This game offers auto-save and candidate number support for strategic play, perfect for daily mental exercise or quick gaming sessions.

Highlights
  • Three difficulty levels
  • Auto-save functionality
  • Candidate number support
  • Customizable interface
  • Intuitive controls
  • Built-in timer
  • Offline play
Features
Read full description

Exercise your mind with this elegant Sudoku puzzle game that combines classic gameplay with modern features. Whether you're a beginner or an expert, our app offers the perfect balance of challenge and enjoyment. FEATURES: - Three difficulty levels: Easy, Medium, and Hard - Auto-save functionality - never lose your progress - Candidate number support for advanced strategies - Clean, customizable interface with light and dark modes - Intuitive controls designed for smooth gameplay - Built-in timer to track your solving speed - No internet needed! HOW TO PLAY: Fill in the 9x9 grid with numbers 1-9, ensuring each number appears only once in every row, column, and 3x3 box. Use candidate numbers to track possibilities and develop your solving strategy. Perfect for: - Daily mental exercise - Quick gaming sessions - Improving logical thinking - Relaxing while keeping your mind active Download now and start solving puzzles!

About

Trio Math

Sharpen your mental math skills by finding number combinations that equal a target number. Each combination must use one multiplication and one addition or subtraction. Compete globally and enjoy a privacy-friendly, ad-free experience.

Highlights
  • Number grid puzzles
  • Multiplication and addition/subtraction required
  • Daily Challenge Mode
  • Global Leaderboard
  • Jokers for hints
  • Ad-free and privacy-friendly
Features
Read full description

Sharpen your mental math skills with Trio. Find hidden Trios in the number grid by selecting three numbers in a row and calculating their result to match the target number. Each valid Trio must include one multiplication and one addition or subtraction - no simple sums allowed. Multiple solutions exist for each target number, so think strategically and act fast to earn three stars. How to play: Find three numbers that form the target number Use one multiplication and one addition or subtraction Think creatively - brackets are allowed For example, to reach 9, you could choose: 3 × 5 - 6 = 9 5 + 2 × 2 = 9 (6 - 3) × 3 = 9 But using two additions is not allowed: 5 + 2 + 2 = 9 (No multiplication used) Features: - Daily Challenge Mode – Solve two out of three puzzles in unique game modes - Global Leaderboard – Compete with players worldwide and track your success - Jokers – Stuck? Hold a number to swap it for a Joker and find new solutions - Ad-Free, Privacy-Friendly – No ads, no data collection—just pure gameplay Trio is free to play, but if you enjoy the challenge, you can support development by unlocking the MinusTrio game mode. Whether it's the cost of an espresso or a cappuccino, your contribution helps keep the game growing. Ready to train your brain? Let’s play. 3... 2... 1... Trio.

Screenshots

PlaySudoku.io3 screens
Trio Math4 screens

Verdict

The call

The clearest difference is in-app purchases: PlaySudoku.io at none against Trio Math's 2. Trio Math's advantage is update cadence (every 4 days vs monthly) and iOS requirement (13.0 vs 17.6). On price, ads 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. Trio Math sells 2 one-off in-app purchases. PlaySudoku.io asks for nothing beyond the download.

UpkeepUpdate frequency

PlaySudoku.io ships an update monthly, Trio Math every 4 days. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

Scorecard4 real differences · 6 level
PlaySudoku.io versus Trio Math: the parameters behind the verdict, then further details
ParameterPlaySudoku.ioTrio Math
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings1 — better—
Update frequencyMonthlyEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.613.0 — better
Further details — not scored
Size1 MB123 MB
Age rating4+4+
DeveloperAlfredo PerryCHRISTIAN KNOLL

Customer experience

PlaySudoku.io

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Trio Math

Written reviews10 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PlaySudoku.io

No in-app purchases

2 purchases

Trio Math

One-time2
  • MinusTrio - Espresso$1.99
  • MinusTrio - Cappuccino$2.99

Questions

Is PlaySudoku.io free?
PlaySudoku.io is free to download, with no in-app purchases.
Is Trio Math free?
Trio Math is free to download, with in-app purchases available.
Do PlaySudoku.io or Trio Math have ads?
Neither PlaySudoku.io nor Trio Math shows ads.
Which is updated more often, PlaySudoku.io or Trio Math?
PlaySudoku.io ships an update monthly, and Trio Math every 4 days. Most recently, PlaySudoku.io was updated on October 6, 2026 and Trio Math on October 7, 2026.

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