| Price from | $5/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| Plans published | 3 | 4 |
| Spec score · Math Solver Apps | 8.6 (#6) | 7.2 (#62) |
| Integrations | Ada+Max uses OpenAI's API to analyze math problems and generate explanations. | The getting-started page says users may sign in with Google when a Google button is shown. |
| Privacy | The policy says the app does not collect location data, contacts, advertising identifiers, or biometric data, and does not sell personal information. | Signed-in solutions are private by default and become publicly accessible only when a user creates a share link; organization administrators may disable public sharing. |
| Purpose | Ada+Max is an AI math homework helper for children and parents, with step-by-step explanations intended to match modern classroom methods. | Ostrol is a step-by-step math solver for learners and educators that pairs generated reasoning with a separate symbolic check when applicable. |
| Support | Privacy questions can be sent to [email protected], and the app has a Contact option in Settings. | Product support is available by email at [email protected], and the site says no public response-time or priority-support guarantee applies. |
