What are some alternatives?
When comparing Karrot Fit and Simplenote, you can also consider the following products
iRewardHealth - Motivating healthy behavior change
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
Optimity: Live.Work.Play - Get rewarded for your healthy habits
OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
SQRL - Save $1 for every 1000 steps you take
Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.