Your feedback is heard! There has been some confusion about how the gameplay actually works and what the "triggers" for jumping are. Therefore, here are the improvements that are out there now:

• the tutorial got better;
  
• the game now detects if you have completed the tutorial and if not, prompts you to take the tutorial (although still completely optional);
  
• store page descriptions are updated to be clearer.
  

Remember that "Jump If You Can!" is a heavily timings-focused game! YOU get to figure the best moment to attempt to jump, based on the current phase in relation to the timer messing with your jumping ability (by turning it on and off, making it increase/decrease, etc) and the next platform cycling between going left and going right.

Happy Jumping!