Comparison

Operatum vs Sumify

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

Head to head
About

Operatum

Enhance your mathematical abilities with this engaging game. It offers Classic and Sudoku modes to make learning math fun for all ages, from beginners to advanced users.

Highlights
  • Improve math skills
  • Classic mode
  • Sudoku mode
  • Engaging gameplay
  • Suitable for all ages
Features
Read full description

Operatum is two games in one: classic math challenges and a full Sudoku suite. Train your brain in short sessions, or sink into an expert grid for an hour. SUDOKU — TWO MODES • Classic Sudoku — the 9x9 grid you already know • Sum Sudoku — every region has to add up • Six difficulties: Easy, Medium, Hard, Expert, Insane and InHuman • Notes, advanced notes, undo, erase and hints CLASSIC MATH MODE • Find the numbers that make the equation work • Addition, subtraction, multiplication and division • Ranked levels that unlock as you improve • Beat the timer without running out of lives WHY PLAYERS STAY • Play offline — no connection needed • Short rounds that fit a coffee break • Difficulty that grows with you, from first grader to speed solver • Clean, distraction-free design • Free to play Good for kids learning arithmetic, students keeping mental math sharp, and adults who want a daily brain workout that is not another word game. Download Operatum and see how far your numbers take you.

About

Sumify

Features
Read full description

Sumify is a relaxing yet addictive number puzzle. Fill the grid so that every row and column adds up to its target sum, and use each number only once. Easy to learn, hard to put down. HOW TO PLAY • Check the target sums beside each row and above each column • Pick a number from the panel and place it in a cell • Use every number exactly once • Tap Check Solution when the grid is full THREE DIFFICULTIES • Easy 3x3: perfect for a quick break • Medium 4x4: a real logic challenge • Hard 5x5: starts with a few locked cells to give you a foothold FEATURES • Daily puzzle: the same grid for everyone, a new one every day • Undo any move and pause whenever you like • Live feedback: a sum turns green the moment it matches • Statistics and achievements to follow your progress • Timer and scoring: solve faster and use fewer hints for a higher score • Stuck? Watch a short video to reveal a cell • Leave a game and pick it up later • English and Turkish, switchable inside the app • Sound and haptics you can turn off Sumify is a calm daily workout for your head. Play for a few minutes to sharpen your mental arithmetic, or settle in for a 5x5 that takes real planning. Download Sumify and train your brain with numbers.

Screenshots

Operatum4 screens
Sumify4 screens

Verdict

The call

The clearest difference is in-app purchases: Sumify at none against Operatum's 6. Sumify also leads on ads (none vs shown) and update cadence (every 4 days vs every 9 months). Operatum's advantage is iOS requirement (13.0 vs 15.0). On price 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. Operatum sells 6 one-off in-app purchases. Sumify asks for nothing beyond the download.

UpkeepUpdate frequency

Operatum ships an update every 9 months, Sumify every 4 days. The most recent releases landed on September 5, 2026 and September 29, 2026 respectively.

Scorecard4 real differences · 4 level
Operatum versus Sumify: the parameters behind the verdict, then further details
ParameterOperatumSumify
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 9 monthsEvery 4 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size49 MB24 MB
Age rating4+4+
DeveloperYUNUS SARIBULUTErem Simsek

In-app purchases

6 purchases

Operatum

One-time6
  • 20 Token$0.99
  • 100 Token$0.99
  • 50 Token$1.99
Show 3 more
  • 200 Token$1.99
  • 500 Token$3.99
  • Remove Ads$7.99
None

Sumify

No in-app purchases

Questions

Is Operatum free?
Operatum is free to download, with in-app purchases available.
Is Sumify free?
Sumify is free to download, with no in-app purchases.
Do Operatum or Sumify have ads?
Operatum shows ads; Sumify does not.
Which is updated more often, Operatum or Sumify?
Operatum ships an update every 9 months, and Sumify every 4 days. Most recently, Operatum was updated on September 5, 2026 and Sumify on September 29, 2026.

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