Yes, both Soda PDF and Formstack Documents offer a Free Trial.
Soda PDF is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Formstack Documents is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Soda PDF Starts at $6.75/Month when Billed Yearly whereas for Formstack Documents Starts at $92/Month when Billed Yearly.
Some top alternatives to Soda PDF includes PDF Convert Free, Adobe Acrobat DC, pdfFiller, Easy PDF, Smallpdf, PDFelement, DocMadeEasy, PDFRun, Foxit PhantomPDF, LightPDF and EaseUS PDF Editor.
Some top alternatives to Formstack Documents includes Paperform, Smart Forms, SimplyDocs, Documint, Adobe Acrobat DC, pdfFiller, FormSwift, Formsio, Framestr Online Forms and Formstack Sign.