Bengali Secure Money Transfer App

I want to build a tightly-secured money transfer app aimed at Bengalis who primarily send cash to family and friends. The flow is simple: a user signs up with a phone number, verifies through a one-time SMS code, and can then move funds either to another registered user via that phone number or straight to an external mobile wallet.

Because the core audience speaks Bengali, I need the entire development process—documentation review, quick calls, and bug-fix discussions—to happen comfortably in that language. Security is non-negotiable, so please factor in encrypted data at rest and in transit, server-side validation of every transaction, and rate-limiting around OTP requests.

Deliverables
• Fully working iOS and Android builds (or a single cross-platform package)
• Admin-side tools to view, reverse, or freeze suspicious transfers
• Clear, commented code plus a short deployment guide

Acceptance criteria
• Phone-number/OTP login works reliably on real devices
• A test transfer completes to (a) another in-app user and (b) an external mobile wallet without data leakage
• All strings that appear to the end user load from a Bengali/English resource file for future localization work

If you have shipped payment products before and can communicate fluently in Bengali, let’s talk.