| Price from | $23.17/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Plans published | 4 | 2 |
| Spec score · AI Essay Writers | 9.0 (#3) | 7.7 (#22) |
| Data retention | Essay drafts and AI-session data are retained for the account lifetime plus one year, while deletion requests are completed within 30 days. | Inputs are retained while an account is active; outputs are retained for up to 12 months unless deleted earlier, and deleted content is purged from active systems within 30 days. |
| Product | Arzo describes itself as an AI college application coaching platform for students. | Papyra helps students write academic essays with citations verified against published papers. |
| Security | Arzo says traffic between users and its servers is encrypted and its Anthropic API communication uses secure transmission protocols. | Its privacy policy lists TLS encryption in transit, encryption at rest for sensitive data, access controls, regular security audits, and incident response procedures. |
| Support | The site lists [email protected] for privacy questions and says inquiries will receive a response within 45 days. | The contact page says email is the fastest support channel and replies typically arrive within 24 hours Monday through Friday. |
