What are some alternatives?
When comparing Kanteron and Fieldbook, you can also consider the following products
Google Fit SDK - Google Fit is an open ecosystem that makes it easy to store, access, and manage fitness data.
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
Lua - Powerful, fast, lightweight, embeddable scripting language
Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
Accountable - Accountable is a platform designed to help organizations manage HIPAA compliance.
EtherCalc - EtherCalc is a web spreadsheet.