In my industry (construction wholesale), there's a whole lot of systems that:
- don't have APIs
- have partial APIs (e.g. ask the company if they have an API and they send a PDF of a rough incomplete API they use internally and tell you that it can be used with basic auth and can change at anytime with no warning)
- undocumented APIs
Zapier probably doesn't even have these systems on it's radar but APIs and connectivity are sorely needed.
Applications, or services? Zapier is just for services, right?
The whole question sounds wrong to me. It’s like asking “Which two programs do you want to be able to pipe between?” All of them!
If you’re defining “integration” in a way that one program only works with one other program, that’s part of the problem.
Guix + Git + Dat + Syncthing
Spreadsheets & Databases
Slack and Trello.
I'd love to be able to have a '#trello' channel where I can see my full board without having to leave the Slack interface.
SQLite virtual tables with remote data services.
NNTP with other discussion forums.
Visual Studio Code + GitExtensions
NLS & Sketchpad
Trello + Todoist
Tinder and LinkedIn. Let it all burn!
Evernote + a Markdown Editor + Weblog Post Publisher
There's Marxico that does the first two, but it's paid. On top of Evernote, you'd have to pay $16 a year just to be able to write in markdown.
It'd be nice to be able to jot down your thoughts in the editor, sync it with an Evernote notebook - specifically selected for weblog posts - and see your post appear on your blog.