Comparison

GridSync vs Prime Ninja

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

Head to head
About

GridSync

Engage your mind with a strategic tile-matching puzzle game featuring two distinct modes: timed challenges and move-limited puzzles. Progress through increasingly complex grids and daily challenges, all presented with a clean, minimalist design.

Highlights
  • Timed and moves-limited puzzle modes
  • Increasing grid sizes and difficulty
  • Daily challenges
  • Smooth tile gameplay
  • Clean, minimalist design
Features
Read full description

Challenge your brain with a unique tile-matching puzzle experience! GridSync combines strategy, speed, and precision across two exciting game modes: • Timed Mode – Race against the clock to complete each puzzle before time runs out • Moves Mode – Think ahead and solve each puzzle within a limited number of moves As you progress, unlock larger and more challenging grids, pushing your problem-solving skills to the limit. FEATURES: • Smooth and satisfying tile gameplay • Increasing difficulty and grid sizes • Two distinct game modes for different playstyles • Daily challenges to test your skills • Clean, minimal design focused on gameplay Support the game through ads, or remove them anytime with a one-time purchase. Whether you prefer fast-paced action or careful planning, GridSync has a challenge for you.

About

Prime Ninja

Features
Read full description

PRIME NINJA - Think fast. Tap smart. Master prime numbers. Bubbles rise. Numbers flash. Can you spot a prime from a composite before it's too late? Prime Ninja is the fast-paced mental arithmetic arcade game that makes prime numbers genuinely addictive. Slice through rapid number streams, build explosive combo multipliers, and train your brain to calculate at light speed! NEW IN VERSION 2.0: THE DOJO & BOSS EXPANSION • THE PRIME DOJO: Master prime identification with the interactive 1-100 Sieve of Eratosthenes grid. Tap any number to reveal its prime factors, study divisibility scrolls, and learn mental math shortcuts. • EPIC BOSS LEVELS: Test your precision every 5 levels with game-changing modifiers: - Speed Rush: 15-second hyper blitz - Sudden Death: 1 single life, 100% precision required - Prime Storm: 80% prime flood for massive combo chains • DYNAMIC LEVEL MAP: Ascend through a glowing cyber trail with tactile 3D stages and evolving neon atmospheres. • GLOBAL LEADERBOARDS: Claim your ninja tag, set unbeatable high scores, and see how your mental math ranks against players worldwide. HOW TO PLAY • Bubbles float upward - tap the PRIME numbers (2, 3, 5, 7, 11, 13...) • Avoid composites (4, 6, 8, 9, 10...) or lose a shuriken life! • Don't let primes escape off-screen! • Chain accurate taps to trigger Ninja Strike combo multipliers! THREE CHALLENGE TIERS • Beginner (1-30) - Perfect for learning basics and building speed • Intermediate (1-100) - Standard competitive speed arithmetic • Advanced (1-300) - High-octane reflex test for true math masters KEY FEATURES • Sleek Cyberpunk and Neon UI with fluid animations • Dynamic difficulty scaling - faster spawns and rising challenges • Responsive haptic feedback for every slice and strike • Star ratings per level to track mastery • Offline play enabled - practice your mental math anytime, anywhere • 100% Free to play GREAT FOR Students, teachers, mental math competitors, STEM enthusiasts, and anyone who loves sharp, quick-thinking brain puzzles. Download Prime Ninja now - how fast can your arithmetic streak survive?

Screenshots

GridSync4 screens
Prime Ninja4 screens

Verdict

The call

The clearest difference is ads: GridSync at none against Prime Ninja's shown. Prime Ninja's advantage is update cadence (every 2 weeks vs every 2 months) and iOS requirement (15.1 vs 18.1). 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

GridSync ships an update every 2 months, Prime Ninja every 2 weeks. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 7 level
GridSync versus Prime Ninja: the parameters behind the verdict, then further details
ParameterGridSyncPrime Ninja
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.115.1 — better
Further details — not scored
Size23 MB33 MB
Age rating4+4+
DeveloperJonathan TuckerTornaido UG (haftungsbeschränkt)

In-app purchases

None

GridSync

No in-app purchases

None

Prime Ninja

No in-app purchases

Questions

Is GridSync free?
GridSync is free to download, with no in-app purchases.
Is Prime Ninja free?
Prime Ninja is free to download, with no in-app purchases.
Do GridSync or Prime Ninja have ads?
Prime Ninja shows ads; GridSync does not.
Which is updated more often, GridSync or Prime Ninja?
GridSync ships an update every 2 months, and Prime Ninja every 2 weeks. Most recently, GridSync was updated on October 12, 2026 and Prime Ninja on October 14, 2026.

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