Comparison

Stack Merge vs Unblock+

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

Head to head
About

Stack Merge

Features
Read full description

Stack Merge is a fast-paced puzzle game where players stack and merge numbered tiles. Combine tiles of the same number to create higher numbers and clear the board. The game ends when there are no more moves left. Aim for the highest score!

About

Unblock+

Features
Read full description

Unblock+ is a premium sliding block puzzle with a minimalist glassmorphism aesthetic and a calm, focused vibe. Your goal is simple: slide the red block to the exit while navigating and elegant board of glass-like blocks and carefully designed obstacles. With over 57,000 handcrafted levels spanning 6 difficulty tiers—from Beginner to Nightmare—Unblock+ scales from quick coffee-break puzzles to deeply challenging brain teasers. The rules stay simple, but the path to the solution becomes increasingly clever and satisfying. Smart, minimalist gameplay • Slide the red block to the exit to clear each level • Ice Blocks keep sliding in a straight line until they hit another block or a wall • Ghost Blocks can pass through other blocks but cannot stop on top of them • Linked Blocks move in unison, forcing you to think in groups instead of single pieces • Solid Obstacles stay fixed and reshape each board into a fresh pathfinding challenge Massive amount of content • Over 57,000 levels spread across 6 difficulty tiers: Beginner, Easy, Normal, Hard, Expert, and Nightmare • Gradual learning curve that introduces each mechanic step by step before combining them in complex ways • Optional 3-star targets that reward solving levels in the most efficient number of moves • Challenge mode with extra-difficult puzzle packs for ultimate brain teasers A zen, glassmorphism aesthetic • Clean, minimal interface with soft blur, subtle glow, and a modern glass look • Smooth animations and satisfying haptic feedback that make every move feel crisp and deliberate • A distraction-free presentation designed to keep you in a focused, almost meditative flow state Themes and customization • 30+ unlockable visual themes, including Cyberpunk, Matrix, Neon, OLED, Sakura, Galaxy, and more • Match the look of your device or your current mood with everything from vibrant neon to deep, high-contrast styles • OLED-ready themes that look stunning on modern displays in dark environments Premium features • Optional subscriptions available: - Infinite Hints ($2.99/month): Get unlimited hints to help you solve any puzzle - Infinite Skips ($2.99/month): Skip any level, anytime you want • One-time purchases available for theme packs, hint packs, skip packs, and level unlocks • No forced ads or energy systems—play at your own pace Designed for focus • Track your streaks as you complete sequences of levels without failing • Optimize your routes to earn 3 stars and push your strategic thinking to the limit • Game Center support with leaderboards and achievements • Clean, premium puzzle gameplay with no intrusive interruptions If you enjoy relaxing but mentally stimulating logic puzzles, sleek visuals, and the satisfaction of finding the perfect sequence of moves, Unblock+ is made for you. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Stack Merge4 screens

Verdict

The call

The clearest difference is in-app purchases: Stack Merge at none against Unblock+'s 10. Stack Merge also leads on iOS requirement (13.0 vs 26.1). Unblock+'s advantage is ads (none vs shown) and update cadence (every 8 days vs every 2 weeks). 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. Unblock+ sells 10 one-off in-app purchases. Stack Merge asks for nothing beyond the download.

UpkeepUpdate frequency

Stack Merge ships an update every 2 weeks, Unblock+ every 8 days. The most recent releases landed on November 4, 2026 and November 9, 2026 respectively.

Scorecard4 real differences · 2 level
Stack Merge versus Unblock+: the parameters behind the verdict, then further details
ParameterStack MergeUnblock+
PriceFreeFree
Update frequencyEvery 2 weeksEvery 8 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better26.1
Further details — not scored
Size103 MB197 MB
Age rating4+4+
DeveloperRasel HossainNathan Francis Jacky Wilcke

In-app purchases

None

Stack Merge

No in-app purchases

10 purchases

Unblock+

One-time10
  • Disco Theme$1.99
  • Wood Theme$1.99
  • Velours Theme$1.99
Show 7 more
  • Marble Theme$1.99
  • Rain Theme$1.99
  • Rainbow Theme$1.99
  • Aurora Signature$2.99
  • Thunderstorm Signature$2.99
  • Sakura Signature$2.99
  • Volcanic Signature$2.99

Questions

Is Stack Merge free?
Stack Merge is free to download, with no in-app purchases.
Is Unblock+ free?
Unblock+ is free to download, with in-app purchases available.
Do Stack Merge or Unblock+ have ads?
Stack Merge shows ads; Unblock+ does not.
Which is updated more often, Stack Merge or Unblock+?
Stack Merge ships an update every 2 weeks, and Unblock+ every 8 days. Most recently, Stack Merge was updated on November 4, 2026 and Unblock+ on November 9, 2026.

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