Comparison

Card Stack vs Sudoku Endless Puzzle

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

Head to head
About

Card Stack

A vibrant card puzzle game focused on color sorting and strategic planning. Match cards by color, organize them into their stacks, and clear the board. Offers simple rules with increasingly challenging levels.

Highlights
  • Color sorting card gameplay
  • Cards with numbers, letters, and symbols
  • Simple, easy-to-understand rules
  • Increasingly challenging levels
  • Variety of card layouts
  • Strategic planning elements
  • Intuitive controls
Features
Read full description

Card Stack: Color Sort Puzzle Card Stack: Color Sort Puzzle is a colorful card puzzle game where color, planning, and proper card organization are the keys to success. The game board contains stacks of cards in different colors. Cards may feature numbers, letters, and special symbols, while the main objective is to find cards of matching colors and correctly organize them into their corresponding stacks. Move cards, group matching colors together, and gradually clear the playing field. The simple rules make the game easy to understand, while each new level requires more attention and thoughtful decisions. FEATURES - Card puzzle gameplay based on color sorting - Colorful cards featuring numbers, letters, and special symbols - Simple and easy-to-understand rules - Increasingly challenging levels - A variety of card layouts and combinations - Strategic and planning elements - Intuitive controls designed for quick gaming sessions - Satisfying visual effects and colorful design Sort the cards, plan your moves, and take on increasingly challenging levels in Card Stack: Color Sort Puzzle! Privacy: https://theinsta.games/privacy/ Terms: https://theinsta.games/terms/

About

Sudoku Endless Puzzle

Features
Read full description

Sudoku Endless Puzzle is sudoku that never resets to a blank grid. You play the bottom three rows. Fill all 27 cells correctly and the band pops: the six rows above slide down, a freshly generated band drops in from the top, and the run continues. The board is always 9x9, always mid-game, always one band away from the next one. Every band is generated to be solvable by logic alone — no guessing, ever. Early bands need nothing harder than a naked single; by level seven you are leaning on hidden singles, and pairs and locked candidates show up after that. The clue count is chosen two clears ahead, so difficulty rises with you instead of jumping. The first three bands are untimed. After that a band clock starts and tightens as you climb through five stages, from START to EVIL. Three mistakes also end the run. You score for every correct entry, plus a band bonus that grows with your level and multiplies for every consecutive band you clear without a mistake or a hint — up to 3x. Clean play compounds; a single slip resets the streak. FEATURES - Endless falling-band sudoku, no level cap and no blank restarts - Every band logically solvable, verified before it ever reaches you - Difficulty that climbs with your level, chosen two clears in advance - Combo multiplier that rewards clean bands, up to 3x - A band clock from the fourth band on, tightening across five difficulty stages - Pencil notes, undo, erase, and hints you earn as you reach each new stage - Plays offline — no account, no sign-in; only the ads need a connection - Your run is saved after every move, so you can stop mid-band and come back Free, with ads. A small banner sits along the bottom of the screen while you play, and a full-screen ad can appear between runs, never in the middle of one and never more than once every 90 seconds. Optional videos can win back a mistake when a run ends, earn a hint when you are out, add 60 seconds when the band clock runs out, or catch an extra lifebuoy. Optional in-app purchases: hint packs (10, 35 or 150 hints) and Remove Ads, which turns off the banner and the ads between runs. Reward videos stay available either way.

Screenshots

Card Stack4 screens
Sudoku Endless Puzzle4 screens

Verdict

The call

Card Stack and Sudoku Endless Puzzle are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Card Stack sells 1 one-off in-app purchase and Sudoku Endless Puzzle sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Card Stack versus Sudoku Endless Puzzle: the parameters behind the verdict, then further details
ParameterCard StackSudoku Endless Puzzle
PriceFreeFree
Rating5.0 (10 ratings) — better—
Number of ratings10 — better—
Update frequency—Weekly
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size203 MB129 MB
Age rating4+4+
DeveloperINSTA GamesZero Four Ltd

In-app purchases

1 purchases

Card Stack

One-time1
  • No ADS$9.99
4 purchases

Sudoku Endless Puzzle

One-time4
  • 10 Hints$0.99
  • 35 Hints$2.99
  • Remove Ads$3.99
Show 1 more
  • 150 Hints$9.99

Questions

Is Card Stack free?
Card Stack is free to download, with in-app purchases available.
Is Sudoku Endless Puzzle free?
Sudoku Endless Puzzle is free to download, with in-app purchases available.
Do Card Stack or Sudoku Endless Puzzle have ads?
Both Card Stack and Sudoku Endless Puzzle show ads.

Other comparisons