BallparkDeal - Find your next cashflowing rental property.
Google Analytics by SumoMe - The easiest way to see your Google Analytics
Rehab Valuator - Rehab Valuator is an impressive piece of real estate software that is primarily designed for rehabbers, flippers, and wholesalers.
Metric.live - Real-time and advanced periodic alerts for Google Analytics.
RentCast.io - Look up accurate rent prices and comps for any property, and track your rental portfolio with real-time alerts and market updates. Available nationwide in the US.
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.