Comparison

Fill In Puzzles vs Stack Rush

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

Head to head
About

Fill In Puzzles

A simple and satisfying puzzle game where you fill grids with colors. Drag colors to the grid, matching the number to the boxes you need to fill. Enjoy fast-paced, easy, and fun gameplay.

Highlights
  • Grid-based color filling
  • Drag and drop mechanics
  • Simple and intuitive gameplay
  • Satisfying visual experience
  • Fast-paced levels
Features
Read full description

Step into a vibrant world of logic and color where every tap and swipe brings clean, calming satisfaction. Fill In Puzzles invites you to unwind and test your analytical thinking across beautifully designed boards. If you love clever numerical riddles, smooth grid challenges, and that rewarding feeling of snapping every piece into place, you have found your next daily brain habit. The rules are simple, but the tactical depth runs deep. Scattered numbered tiles indicate the exact amount of space each color must claim. Your mission is to drag paths from each starting point, claiming the board tile by tile until every square is covered with zero overlap. As you advance, larger grids and intricate patterns demand careful foresight, deductive reasoning, and creative problem-solving. With no stressful timers or sudden penalties, you can play entirely at your own pace. Whether you want a five-minute mental stretch during a busy commute or a long, relaxing evening session, enjoy a soothing atmosphere designed to keep your mind sharp and focused. Pick up your brush, plan your strategy, and bring order to the board! FEATURES: • Intuitive Touch Controls: Simply swipe outward from numbers to stretch colors smoothly across the board. • Hundreds of Clever Levels: Progress from gentle warm-ups to deeply intricate brain-busting grid layouts. • Pure Stress-Free Logic: Play at your own speed with no countdown timers, move counters, or high-pressure penalties. • Offline Mind Training: Sharpen spatial reasoning and deduction anywhere, anytime—no Wi-Fi needed. • Deeply Satisfying Visuals: Enjoy crisp animations, haptic feedback, and vibrant color completions on every solve. HOW TO PLAY: • Check the Numbers: Scan the board to see how many squares each numbered block must paint. • Drag to Color: Swipe outward from each number across adjacent tiles to expand its matching color. • Avoid Overlaps: Ensure color paths never collide or exceed their assigned number of tiles. • Clear the Grid: Fill every single empty block on the board to complete the stage and advance.

About

Stack Rush

Features
Read full description

Merge Stack Rush is a fast-paced, addictive number puzzle game that challenges your brain and reflexes! Drag and combine matching number tiles to level up and create high-score chains. Strategize your moves as new rows constantly appear from the bottom, blocking your path. How to Play: Merge Tiles: Drag a tile onto another tile with the same number to combine them and increase their value. Clear Rows: Create continuous merge chains to earn combo bonuses and optimize your score. Think Ahead: Plan your moves carefully to avoid getting blocked by new tiles. Key Features: Simple yet Deep Gameplay: Easy to learn, but offers tactical depth for strategic players. Dynamic Difficulty: The challenge increases over time, making every game unique and exciting. Objective-Based Turns: Complete specific objectives to enhance your score and progress. Beginner-Friendly Tutorial: Get started quickly with a clear and concise guide. Leaderboards & Player Names: Compete globally and personalize your gaming experience. Smooth UI: Optimized for mobile with intuitive drag-and-drop controls. Compact Size: Enjoy this full-featured puzzle game without taking up much storage space! If you love number merging games, quick reflexes, and engaging short-term strategy, Merge Stack Rush is the perfect choice for fun anytime, anywhere. Download now and start your high-score rush!

Screenshots

Fill In Puzzles4 screens
Stack Rush4 screens

Verdict

The call

The clearest difference is in-app purchases: Stack Rush at none against Fill In Puzzles's 7. Stack Rush also leads on update cadence (weekly vs every 14 months) and iOS requirement (13.0 vs 15.0). On price, ads 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. Fill In Puzzles sells 7 one-off in-app purchases. Stack Rush asks for nothing beyond the download.

UpkeepUpdate frequency

Fill In Puzzles ships an update every 14 months, Stack Rush weekly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 6 level
Fill In Puzzles versus Stack Rush: the parameters behind the verdict, then further details
ParameterFill In PuzzlesStack Rush
PriceFreeFree
Rating5.0 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyEvery 14 monthsWeekly — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size47 MB72 MB
Age rating4+4+
DeveloperPLAYTOUCHURANI SOFTWARE SOLUTIONS COMPANY LIMITED

In-app purchases

7 purchases

Fill In Puzzles

One-time7
  • 100 diamonds$0.99
  • 300 diamonds$1.99
  • Remove all ADS from the game$1.99
Show 4 more
  • 550 diamonds$3.99
  • 1200 diamonds$8.99
  • 2500 diamonds$17.99
  • 4000 diamonds$26.99
None

Stack Rush

No in-app purchases

Questions

Is Fill In Puzzles free?
Fill In Puzzles is free to download, with in-app purchases available.
Is Stack Rush free?
Stack Rush is free to download, with no in-app purchases.
Do Fill In Puzzles or Stack Rush have ads?
Both Fill In Puzzles and Stack Rush show ads.
Which is updated more often, Fill In Puzzles or Stack Rush?
Fill In Puzzles ships an update every 14 months, and Stack Rush weekly. Most recently, Fill In Puzzles was updated on November 3, 2026 and Stack Rush on November 5, 2026.

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