notification – Ideal frequency for reminder email to review host/guest in Airbnb marketplace app?

In a marketplace app (e.g. like Airbnb), what would the ideal frequency be for reminder emails to review the other party (e.g. host/guest)?

I read about Email Reminder Best Practices as well as the non-specific suggestions on Email reminder frequency to complete a task.

Example schedule

Based on the answers to the aforementioned questions, I think the idea frequency should be:

  • Ask to review 2 hours after end of trip (while it’s top of mind)
  • Reminder 48 hours after end of trip
  • Reminder 1 week after end of trip
  • Reminder 13 days after end of trip
  • After 14 days, the review period closes.

This is based partly on the suggestions in the aforementioned questions, and partly on what I’ve seen actual marketplace apps use.

Would this schedule be approximately optimal, if not, what would be?