Developer

Vlad Feinstein

3 apps in Education, Games. Listed here since October 2026. Browse every developer.

Blackjack Trainer - FeinGames
Vlad Feinstein
Added today
Learn and practice blackjack basic strategy — the mathematically optimal play for every hand you can be dealt. FOUR TRAINING MODES - Hint — the recommended move is shown as you play - Advise — the answer stays hidden until you ask for it - Warn — play freely, and get a second chance whenever you deviate - Test — call the play yourself, then find out whether you were right Or switch training…
Education
Devil Six Solitaire
Vlad Feinstein
Added today
Devil Six Solitaire adds a brilliant twist to classic solitaire — with two decks, strategic planning, and deceptive simplicity that will test even the sharpest minds. The rules are historically attributed to Winston Churchill (circa 1940) and popularized decades later by diplomat André de Staercke. Perfect for players who crave depth, logic, and a true test of skill. Every deal is a battle of…
Games
Fein Solitaire: No Ads
Vlad Feinstein
Added today
Experience the ultimate Solitaire collection! Master over 100 variations of the world's most beloved card games in one sleek, powerful app. From the timeless Klondike to the complex and strategic FreeCell, your perfect game is always just a tap away. Whether you're looking for a quick mental break or a deep strategic challenge, our collection is designed for players of all skill levels. 100+…
Games

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Vlad Feinstein

Blackjack Trainer - FeinGames

Devil Six Solitaire

Fein Solitaire: No Ads