[updated as of August 2017]

We're currently locking in how much and how long data should be retained. We had to set some values for the beta, and will definitely be adjusting these as time goes on.

1. Each feed stores data for 30 days.
2. You can write data to the system, across all feeds, up to 60 times per minute. Data creating, updating, and deleting all count against the limit.
3. You may read your data an unlimited amount of time, as long as you remain within the throttle times.
4. 10k rows of "Activity" data is maintained. Activity data just tracks the last actions of your IO account on your Activities page for your information.