language-learning app for Android and iOS

Hello Atanu, I am planning to build a mobile language-learning app for both Android and iOS. The app will include: - AI-generated reading passages, questions and answers. - Translations between the learner’s chosen languages. - Text-to-speech with adjustable playback speed. - Saving lessons and translations for later review. - Beginner, intermediate and advanced levels. - Monthly and annual subscriptions. - A limited free trial, with trial usage stored securely on the server. - n8n integration for AI workflows where appropriate. I want to start with a simple but well-built MVP that can be expanded later. Could you please answer the following questions? 1. Can you share links to two or three similar mobile apps you have personally developed? 2. Would you personally manage and develop this project, or would members of your team do the work? 3. What technology stack would you recommend, and why? 4. What would be your fixed-price estimate for the MVP, including Android and iOS? 5. How long would development take? 6. Will I receive the complete source code and ownership of the project, including the database and backend setup? 7. Can we divide the work into milestones, with payment released after each milestone is completed and tested? I have a limited initial budget, so I would appreciate a cost-effective proposal focused on the essential features first. Thank you.