Using Dreamhost, they install the software and create the database with one click.
I manage 5 websites. 4 of them are now based on Thrive Themes - Shapeshift.
I've been using Mailpoet since it's inception. It has matured to rival Mail Chimp and others.
Adobe Photoshop -
We've had a Photographers subscription since they went from software to subscriptions.
I use Power Point to create my Journals, Excel to manage users, and Acrobat for word/pdf control.
My shopping carts are run by Woo Commerce. My Affiliate program is Thirsty Affiliates and Links are made with Pretty Links.
SEO - Ubersuggest
Analytics - Google
User Data Tracking -Answer The Public.