Comparison

Zero? vs SudoMind

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

Head to head
About

Zero?

A fast-paced number game where players must quickly determine if sums of numbers are multiples of ten. Offers various modes for solo play or head-to-head challenges with friends.

Highlights
  • Sum calculation challenges
  • Timed gameplay
  • Relaxed mode without time pressure
  • Two-player head-to-head mode
  • Multiplayer on a single device
Features
Read full description

Can you tell if the sum of 3 numbers are a multiple of ten? 4 numbers? More? It sounds easy, but hurry... time is running out! Challenge your friends, and play face-to-face on a single iPad or iPhone! Fun for all ages, choose your favourite mode: • Zoom & Zen, for a fast or easy-paced challenge • Relax, for stress-free fun without the time pressure • Two-player, the unique way to play with your friends in head-to-head action! Reviews for Sum Fun: “ It’s a solid math game, one that brings in interesting gameplay ideas and which has a stellar execution ” – AppGames.net: 9 / 10 “ By the time your kids have played with this app a few times, they’ll be adding up the numbers faster than you can say, ‘What’s six plus eight?’ ” – Fun2Tap: 5 / 5

About

SudoMind

Features
Read full description

SudoMind brings together three classic logic puzzle games: Sudoku, Nonogram, and Tents & Trees. Enjoy a clean design, smooth controls, and full Dark Mode support for a relaxing and focused puzzle experience anytime. • Sudoku – Multiple difficulty levels • Nonogram – Reveal hidden pixel art • Tents & Trees – Unique placement-based logic puzzle • Auto-save progress • Minimal and distraction-free design Perfect for relaxing your mind or challenging your logical thinking.

Screenshots

Zero?4 screens
SudoMind4 screens

Verdict

The call

The clearest difference is ads: Zero? at none against SudoMind's shown. Zero? also leads on iOS requirement (8.0 vs 16.6). SudoMind's advantage is update cadence (every 4 days vs every 3 months). On price, 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Zero? ships an update every 3 months, SudoMind every 4 days. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
Zero? versus SudoMind: the parameters behind the verdict, then further details
ParameterZero?SudoMind
PriceFreeFree
Rating4.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 3 monthsEvery 4 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS8.0 — better16.6
Further details — not scored
Size27 MB7 MB
Age rating4+4+
DeveloperGreg Sharpetsai peimin

In-app purchases

None

Zero?

No in-app purchases

None

SudoMind

No in-app purchases

Questions

Is Zero? free?
Zero? is free to download, with no in-app purchases.
Is SudoMind free?
SudoMind is free to download, with no in-app purchases.
Do Zero? or SudoMind have ads?
SudoMind shows ads; Zero? does not.
Which is updated more often, Zero? or SudoMind?
Zero? ships an update every 3 months, and SudoMind every 4 days. Most recently, Zero? was updated on October 24, 2026 and SudoMind on October 11, 2026.

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