Happy Color® – Coloring Games vs Sven's SudokuPad

How do Happy Color® – Coloring Games and Sven's SudokuPad compare on difficulty, ad pressure, in-app-purchase pressure and what real reviewers say? A side-by-side look, grounded in App Store data.

	Happy Color® – Coloring Games	Sven's SudokuPad
Genre	Puzzle	Puzzle
Price	Free	Paid
Difficulty	easy	variable
Ad intensity	high	none
In-app-purchase pressure	medium	none
Typical session	variable	long
Rating	4.8 / 5	3.3 / 5
Ratings count	3,398,350	117
Reviews say	What players like Calming and meditative for anxiety/ADHD Vast library of pictures including Disney content Satisfying animated playback on completion Common complaints Excessive ads interrupt coloring mid-session Ads pop up and open browser tabs without permission Touch sensitivity issues requiring multiple taps	What players like Excellent UI/interface for solving Sudoku puzzles Supports multiple notation types (Snyder, cell, color notes) Ability to import and create custom puzzles Common complaints Missing save progress feature; puzzles lost mid-solve Rules and variant instructions fail to import from web Mac version is broken and unusable (controls unresponsive)

Happy Color® – Coloring Games — A relaxing color-by-numbers game with 40,000+ pictures designed to calm anxiety and ADHD through meditative coloring. (rated easy difficulty, high ad pressure) Sven's SudokuPad — A Sudoku puzzle solver and creator with an elegant interface, but hampered by missing features and technical issues compared to its web counterpart. (rated variable difficulty, none ad pressure)

Data: Apple App Store, as of 2026-08-24. Last updated 2026-08-24.