| Core technology | Objective-C based library with native Docusign UI components | iOS developer access to Docusign eSignature REST API via language service layer |
| Full eSignature REST API access | No, only template and envelope-driven document workflows | No, most API endpoints are covered, but no offline access or account management endpoints |
| Offline capabilities | Yes, offline signing driven by templates and envelope creation | No, online only |
| Native signing UI components | Yes, leverages native components such as native signing | No, developers must build custom UI components to support API requests and responses |
| Supports all Docusign tab types | Agreement creation and offline signing supports signature, initials, name, date, textbox, checkbox, company, radio button and title tabs | Yes, all tab types are available and supported |
