| Price from | $2.99/mo | $0.29/mo |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 2 | 16 |
| Spec score · AI Study Tools | 9.0 (#6) | 8.7 (#18) |
| AI flashcards | Yes | Yes |
| Flashcards | Users can create flashcards, customize existing sets, and search sets made by other students and teachers. | Users can paste text, upload a PDF or document, or provide a topic to generate editable flashcards. |
| Free plan | Yes | Yes |
| Mobile app coverage | ios_android | ios_android |
| AI quizzes | Yes | Yes |
| Security | Quizlet says its website and mobile apps use HTTPS encryption and that it maintains a security program and bug bounty program. | The privacy policy lists encryption in transit and at rest for sensitive data, HMAC-signed authentication requests, input sanitization, rate limiting, and regular security audits. |
| Source uploads | Yes | Yes |
| Study tools | Quizlet provides flashcards and study activities including Learn and Test. | Studay turns notes, PDFs, slides, and videos into flashcards, quizzes, and summaries with AI. |
| AI summaries | Yes | Yes |