Flow Free vs Sudoku - Brain Puzzle Games

How do Flow Free and Sudoku - Brain Puzzle Games compare on difficulty, ad pressure, in-app-purchase pressure and what real reviewers say? A side-by-side look, grounded in App Store data.

	Flow Free	Sudoku - Brain Puzzle Games
Genre	Board	Board
Price	Free	Free
Difficulty	variable	variable
Ad intensity	medium	high
In-app-purchase pressure	low	low
Typical session	variable	medium
Rating	4.8 / 5	4.8 / 5
Ratings count	398,384	302,098
Reviews say	What players like Hundreds of free levels and daily puzzles Smooth, polished gameplay with gradual difficulty progression Relaxing and meditative experience Common complaints Excessive ads even after purchasing ad-free version Ad-free purchase doesn't actually remove ads (especially for hints) Game stability issues and broken daily/weekly puzzles	What players like Smooth gameplay and polished interface 5000+ puzzles across multiple difficulty levels Helpful features like hints, notes, and undo/redo Common complaints Excessive ads between games and mid-gameplay interruptions Long, unskippable ads that frustrate players Misleading ads pretending to be app updates

Flow Free — Connect matching colors with pipes to fill the board in this addictive, relaxing puzzle game with hundreds of free levels. (rated variable difficulty, medium ad pressure) Sudoku - Brain Puzzle Games — A relaxing yet challenging Sudoku puzzle game with thousands of handcrafted puzzles, undermined by aggressive ad monetization. (rated variable difficulty, high ad pressure)

Data: Apple App Store, as of 2026-07-10. Last updated 2026-07-10.