Dropbox Sign
9.0#2 in e-signature toolsFree planFree planAndroidiOSWebAPI
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| Fact | Dropbox Sign | OpenSign |
|---|---|---|
| API | The API documentation covers signature requests, embedded signing, embedded templates, embedded requesting, text tags, callbacks, SMS tools, OAuth, and API dashboards. | OpenSign exposes a REST API authenticated with an x-api-token header and provides sandbox, production and EU endpoints. |
| API access | Yes | Yes |
| Audit trail | Each signature request includes a non-editable audit trail that tracks and time-stamps actions. | Yes |
| Bulk sending | No | Yes |
| Company identity | LinkedIn lists Dropbox Sign as a public software-development company headquartered in San Francisco with 51–200 employees. | The privacy policy identifies Qik Innovations Private Limited as the operator of OpenSign. |
| Free plan | Yes | Yes |
| Integrations | Official materials list Dropbox, Google Drive, Salesforce, OneDrive, HubSpot, Microsoft tools, and other integrations. | The Professional plan lists Zapier integration, Dropbox import and custom Gmail or SMTP sending. |
It suits individuals and businesses that need to send documents for signature and track agreement requests. Teams with recurring documents can use templates, while developers can use the API and SDKs.
OpenSign may suit individuals and businesses that need PDF signing, reusable templates, or API-based signing workflows. It also offers self-hosting instructions for those who want to run it on Linux, macOS, or Windows.