MindMeister for G Suite - MindMeister lets you create, share and collaboratively work on mind maps.
CALCONIC_ - Build & add interactive calculators to your website! Choose from more than 50 premade calculators or build your own from scratch. No coding required. Free plan available. Zapier Integration. Publish Anywhere.
MightyCall - Virtual phone system that lets you run your business from anywhere.
ConvertCalculator - Create powerful, beautiful Calculator forms
Awesome Table - Display Google spreadsheet data beautifully
Calcapp - Build apps instead of spreadsheets