Build features for gamified educationl Android app

We need a few features to be built to be integrated into our educational English Language Learner app which will be made available to kids from lower income backgrounds: 1) Letter-tracing feature Tracing of individual letters and words; (google letter tracing apps as a reference) 2) E-reader feature Text is displayed on a book background and read out aloud, while the corresponding words are lit up; pages can be turned just like in a real book 3) Handwriting to Text Recognition / Handwriting spellcheck feature Text written with a pen or with fingers onto a white area and text recognition turns it into printed text and checks it spelling If you are able to program at least one of these features, please do get in touch and we can discuss the pricing. We are based in Mumbai, India; it is NOT required that the developer is based in Mumbai or appears in our office in person. Remote work is accepted.