| Price from | €6.58/mo | $29.99/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Plans published | 1 | 3 |
| Spec score · Book Writing Software | 7.9 (#19) | 8.3 (#12) |
| Integrations | Google Docs manuscripts can be imported by downloading them as Microsoft Word .docx files first. | The terms mention third-party services and links, but no named product integration catalog is provided on the public pages reviewed. |
| Intended users | The maker presents GrinTale for novelists, essayists and academics, screenwriters, bloggers and journalists. | Squibler describes Plus as suited to writers working on one book or screenplay and Pro as suited to multiple projects or co-writing. |
| Purpose | GrinTale is an online writing environment for organizing books and long texts, including chapters, characters, research and notes. | Squibler is an AI-assisted writing platform for creating books, novels, and screenplays. |
| Security | The maker says data is transmitted over HTTPS and stored on protected cloud servers, passwords are hashed, and accounts can use two-factor authentication. | Squibler says it uses reasonable technical and organizational safeguards, but cannot guarantee absolute security. |
| Support | The Pro plan includes priority support, and the FAQ gives [email protected] as a contact address. | Support is offered through email and a Knowledge Center; the FAQ gives procedures for cancellation, deletion, login and export problems. |
