TipStar is only app for iOS which combines a quick tip calculator with powerful itemized bill splitting.

TipStar lets you:

• Quickly calculate a tip from a percentage, or vice verse

• Decide whether or not to tip on tax

• Split certain bill items between specific people

• Share bill summaries

• Pay and request totals on Venmo

SortStar is a free website for helping you quickly sort any list. It is based on the simple idea that if you can pick between two items, you can pick between 100 items!

Here are some of the things SortStar can be used for:

• Choosing a restaurant to go to

• Prioritizing a list of tasks

• Writing a "top X best Y" article