There's no limit on the number of nudges you can create or the number of nudges active at a given time.
Nudges can be delivered to your phone (text message and/or phone call) or your email inbox.
A single nudge can be delivered to multiple destinations.
Send yourself up to 50 nudges via phone call every month.
Send yourself up to 100 nudges via text message every month.
Send yourself nudges via email — as many as you need.