ProLease - ProLease helps organizations manage their leased, owned and subleased properties in one integrated system.
Tweedle App - Notion is nice but sometimes all you need is an app like Tweedle.
Yardi Voyager - Voyager is software for managing properties and the people who live there. The software is developed by Yardi, a company founded in 1984 that specializes in property management software. Read more about Yardi Voyager.
Plume - App for writing documents, scripts, books and more.
DotLoop - Peoplework, Not paperwork.
Tweetbot - Sync your timeline across your iPhone, iPad, and Mac. Mute tweets by user, hashtag, tweet source, or keywords (including regex). 3rd Party support for image, video, read later, and timeline sync services.