Discover which mobile apps your Facebook friends are using

• 100 star of 5

Design experiments and measurements confidently with minimal knowledge of statistics. Have you ever worried if the study you were planning would have enough data to conclude anything? Know how muc...

• 0 star of 5

Tip Confidently Anywhere, and in Any Situation! Full Featured Tip Calculator: • Easy to use number pad, placed for easy thumb reach • Bill splitting • Rounding • Before tax calculation available f...