| Price from | $5/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 3 | 2 |
| Spec score · Math Solver Apps | 8.6 (#6) | 7.3 (#59) |
| Children's privacy | The maker says it complies with COPPA and that parent or guardian accounts are used to manage children's profiles. | The privacy policy says Stimy AI collects information from users under 13 and describes its handling as COPPA-compliant. |
| Practice | Flashcards cover addition, subtraction, multiplication, and division across tables 1 through 12, with per-table progress tracking. | Stimy offers practice problems tuned to what the learner is working on, with instant feedback. |
| Purpose | Ada+Max is an AI math homework helper for children and parents, with step-by-step explanations intended to match modern classroom methods. | Stimy is an AI math helper that solves photographed math problems and explains them step by step. |
| Security | The privacy policy states passwords are hashed with bcrypt, data is transmitted over HTTPS, and the database is not publicly accessible. | The privacy policy says the company implements security measures against unauthorized access, alteration, disclosure, or destruction of personal information. |
| Support | Privacy questions can be sent to [email protected], and the app has a Contact option in Settings. | The support page invites users to email questions, issues, suggestions, or comments. |
| Work checking | The app gives instant AI feedback on photographed completed work and explains mistakes. | Users can photograph their own solution and receive feedback on accuracy, method, and clarity. |
