Comparison

Combinatoria vs Just Sum! Number Logic Puzzle

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

Head to head
About

Combinatoria

Features
Read full description

Combinatoria is a relaxing alchemy puzzle game where curiosity and logic come together. Experiment with elements, discover new combinations, and unlock unexpected results. Each interaction brings something new - sometimes obvious, sometimes surprising - encouraging exploration and creative thinking. Designed for short and long play sessions alike, Combinatoria offers a calm and focused experience without pressure, timers, or distractions. Features: - Intuitive alchemy-based gameplay - Hundreds of possible combinations to discover - Clean, minimalist design - Calm atmosphere and relaxing soundscape - Play at your own pace Whether you enjoy logical puzzles or simply love experimenting, Combinatoria invites you to explore, combine, and discover. ----- Credits: Music generated by Mubert https://mubert.com/render. ----- This app contains advertising.

About

Just Sum! Number Logic Puzzle

Features
Read full description

Pick the numbers to keep. Land every sum exactly. Just Sum! is a calm number puzzle built on one simple idea: every row, every column and every colored area has a target sum. Tap the numbers you want to KEEP, leave the rest behind, and the moment all your sums match, the level is solved. You never have to guess. Every board is generated the moment you start it and verified by a solver, so there is exactly one solution — and pure logic will always get you there. HIDDEN ? CELLS From level 31, some tiles hide their number behind a "?". You still have to decide whether to keep them, using only the sums around them. Get it right and the number is revealed. It is the twist that keeps the bigger boards interesting. FEATURES • Endless levels that grow from a cozy 3x3 up to a demanding 10x10 • Every board freshly generated with a guaranteed unique solution • Hidden ? cells unlock as you progress — from one per board up to six • No timer, no lives, no game over. Mistakes are counted, never punished • Stuck? Trade a rewarded ad for a hint that solves one cell for you • Stats kept on your device: highest level, clears, flawless clears, best time per board size, total play time • 7 achievements to chase, from reaching level 10 to 100 total clears • Warm rounded visuals, with a dark mode that is genuinely bright and easy on the eyes • Rich haptic feedback on every tap, every mistake and every completed line • Boards are generated on your device, so you can keep playing offline • iPhone and iPad, in English, Japanese, Korean, Spanish, Simplified and Traditional Chinese HOW TO PLAY 1. Tap a number to keep it. Tap it again to undo 2. Match the target sum on every row, every column and every colored area 3. The numbers you never tap are the ones you erase 4. When all the sums line up, the level is clear Thirty seconds or thirty minutes — pick up where you left off, and make it add up. Free to play, supported by ads.

Screenshots

Combinatoria4 screens
Just Sum! Number Logic Puzzle4 screens

Verdict

The call

The clearest difference is iOS requirement: Combinatoria at 15.1 against Just Sum! Number Logic Puzzle's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

Scorecard1 real difference Ā· 5 level
Combinatoria versus Just Sum! Number Logic Puzzle: the parameters behind the verdict, then further details
ParameterCombinatoriaJust Sum! Number Logic Puzzle
PriceFreeFree
Update frequencyWeeklyWeekly
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size77 MB8 MB
Age rating4+4+
DeveloperVolodymyr RebrovYuma Ueno

In-app purchases

None

Combinatoria

No in-app purchases

None

Just Sum! Number Logic Puzzle

No in-app purchases

Questions

Is Combinatoria free?
Combinatoria is free to download, with no in-app purchases.
Is Just Sum! Number Logic Puzzle free?
Just Sum! Number Logic Puzzle is free to download, with no in-app purchases.
Do Combinatoria or Just Sum! Number Logic Puzzle have ads?
Both Combinatoria and Just Sum! Number Logic Puzzle show ads.
Which is updated more often, Combinatoria or Just Sum! Number Logic Puzzle?
Combinatoria ships an update weekly, and Just Sum! Number Logic Puzzle weekly. Most recently, Combinatoria was updated on October 28, 2026 and Just Sum! Number Logic Puzzle on October 29, 2026.

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