Hi, I've been developing a third-party integration over the past month or so using a business trial account which expired.
The thing is upgrading would cost me 3 seats, which I personally don't need.
Salesforce, Pipedrive, and many popular cloud services offer free developer accounts in Sandbox environments (with limited quotas) so that third party developers can develop without having to pay for the full service.
Does Dropbox offer something similar?