GrandBastard vs Undersend

Chess Puzzles and Chess Analysis Extension for Firefox and Chrome.

GrandBastard offers 200K checkmate puzzles for chess lovers who want to practice their endgame.
Install our Chrome and Firefox extension to get game hints while you are playing on chess.com or lichess.

Send activities-based emails to your users to increase engagement and conversion rate.

With Undersend, you can create and send personalized marketing campaigns to your users based on their activities.

You can trigger a message when a user does or doesn't do an action. Each email can be personalized by the user properties like first name, sign up date, or whatever you want. Personalized messages have a more significant impact on users.

Finally, set the campaign goal, measure results, and edit emails to improve outcomes.

Location: Wroclaw, Poland