Epic Privacy Browser Forums

Great question building a Zengo-style wallet involves secure key management, end-to-end encryption, and a polished UX that protects users.
Development costs vary widely depending on features (mobile apps, backend, integrations) and ongoing maintenance; for a rough budgeting reference try https://paycheckcity-calculator.com to model developer and audit expenses.Also set aside funds for independent security audits, penetration testing, and regulatory/compliance reviews.