To be honest, I haven't spent a lot of time using Fieldbook or Ragic. That being said, we spend an insane amount of time/effort making sure that Airtable delivers a first-class product experience. In fact, the first couple years of Airtable's existence involved myself and my cofounder Andrew--who previously PMed the redesign of Google Maps--building countless prototype variants to get the UX right, doing a literal hundred user studies with people from all sorts of industries/roles to understand how the full range of how they used spreadsheets, databases, and other products, and researching the prior art by talking to the creators of past products in the space (i.e. MS Access, Excel, Coghead, Podio, Dabbledb, etc).
We think Airtable is to spreadsheets/Access/Filemaker what Slack is to email (and fwiw, Slack itself uses Airtable http://bit.ly/2m58l4U ).
Specifically, our product offers the following (which to my knowledge Ragic/Fieldbook do not):
x IMO a much more intuitive design
x Native Android, iPhone, & iPad apps, as well as an electron desktop app ( airtable.com/downloads )
x Ability to create multiple views on the same table, each of which preserves its own filter/sort/visibility settings
Multiple view types, including grid, grouped records, calendar, kanban, public forms, and gallery: http://bit.ly/2ky3WLB .
x Inline collaboration i.e. @mentions in text fields, record-level comments
x Many more useful field types
x Visual revision history and snapshots
x More integrations, such as with Zapier (see Zapier's writeups http://bit.ly/2lfGr79 http://bit.ly/2l3dZqG ), Slack, native calendars via an iCal feed, and Dropbox/Box/Gdrive/Evernote.
x Greater capacity and smoother performance.
x Full realtime sync for all changes, including schema modifications.
x Lots of little things, like the ability to perform date calculations relative to today (i.e. a filtered view or formula that shows all projects due within 7 days from today and is automatically updated as time goes by), private share-links and embeds to give people access to a read-only view of Airtable without making them sign up for an account, inline document previews (e.g. view a text-copyable inline version of a .DOCX file)
Over 30,000 organizations already use Airtable--this includes tech cos like Airbnb, Box, Wework, and Tesla; non-tech cos like Atlantic Records and Penguin Randomhouse; educational institutions like CMU, Rice, and Stanford. We're growing our team and continuously releasing new enhancements to improve the product experience for all users.