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.
Billdogg - Beautifully simple invoicing for freelancers
ConvertCalculator - Create powerful, beautiful Calculator forms
Free Invoice Generator - A free invoice generator for startups
Calcapp - Build apps instead of spreadsheets
Bookipi Invoice App - A minimal, beautiful invoice app for freelancers