What are some alternatives?
When comparing Karrot Fit and Digit, you can also consider the following products
iRewardHealth - Motivating healthy behavior change
Penny - Penny is a personal finance app that takes the pain out of keeping track of your finances.
Optimity: Live.Work.Play - Get rewarded for your healthy habits
Qapital - Qapital is an easy to use Finance application that allows you to save money automatically and take control of your spending.
SQRL - Save $1 for every 1000 steps you take
Spendee - See where your money goes