EdTech cross platform AI learning app

My name is Sam and my company is looking for bids to begin the construction of an online education platform. I will require a - Web app - iOS app - android app - Backend dashboard This is a paid platform, and will require students to pay a monthly subscription fee in order to keep their account premium. A free account with limited section of notes option should be available. The platform will be used to provide students access to - online notes - quizzes - questions - analytics on their progress (e.g., you scored in the top 11% of students: Rank 110/521) Big data analytics will be used (AWS Amplify etc) in order to perform a series of tasks (recommender systems, determining question difficulty, incorrect solution/report management, Identifying where students spend the most time on etc). Students should login, select a subject and be given access to an interactive webpage with notes. The basic notes should look like: [login to view URL], but ideally add more interactivity (such as mini checkpoints, drag-drop answers, option to star/bookmark). There should also be tables included for some section of notes. This should be in a more visually appealing format than the example provided. Students should not be able to scroll through all content, and must pass the interactive checkpoint/block to unlock the next section of theory. (You must match the correct term with its definition to view the next topic). Students progress in a subject should be monitored (e.g., Physics topic 1 - Motion - 35% complete). This should be visualised in a central dashboard with progress, topics suggested to revise next etc. Students should then have access to quizzes for each topic, that randomly generate questions from a backend database. These quizzes must be customisable. Students can choose which parts of the topic to be included in the quiz. The format of the questions will vary, and they can be multi-part. Some examples are Fill in the blank Multiple choice Numerical answer Drag and drop After a quiz, a student should be able to see a full breakdown of right/wrong answers and a summary: (Topic 1) = (76%) (Topic 3) = (91%) Numerical questions = 11/12 Long response questions = 5/12 Finally, there needs to be a simple admin interface which allows non-technical users to add questions to the database, add the theory notes, add interactive blocks (Choose the correct answer, drag and drop, match, label the picture etc), and quiz questions. Furthermore, question database should take and render LaTeX. The interface should also be able to create/ban accounts, see progress details, sign ups, problematic/reported questions, payments, student details etc. If you have read this far, please begin your proposal with a the formula "F=ma". Finally, security measures will need to be placed (e.g. API rate limiting, multiple login detection, geofencing)