SEO Boost for Web & Apps

I’m looking to raise the search engine visibility of my entire digital presence— the main website as well as the companion Android and iOS applications. The immediate target is higher rankings on Google and the App Store / Play Store search results, not just a bump in generic traffic... (Budget: ₹12500 - ₹37500 INR, Jobs: Android, App Store Optimization, Google Analytics, Internet Marketing, Keyword Research, Link Building, Page Speed Optimization, SEO)