Blockchain App Development Company
Secure crypto wallet and blockchain apps for startups and fintech businesses, like our MomoMi crypto wallet. Rates from $35 per hour.
Secure Wallet Apps
We design and build crypto wallet and blockchain apps with cryptography-based security, like MomoMi for Africa and the MENA region.
MomoMi crypto wallet for Africa and MENA.
Native or Flutter wallet apps.
Cryptography, secure keys and biometric login.
Blockchain App Development
Send, receive and store crypto securely.
Cards and bank links with Stripe and Plaid.
Connect apps to blockchain networks via APIs.
Users, support and monitoring in one place.
Checked before every release.
30 days of free bug fixing, then maintenance.
Build Your Crypto Wallet App
Book a free call and get a free clickable design of 5-6 key screens of your wallet app, then a written estimate.
Blockchain Apps We Build
From a wallet MVP to a full fintech product:
Crypto Wallet Apps
Mobile wallets for new and experienced users.
Payment and Digital Wallets
Cards, bank links and transfers.
Blockchain-Enabled Apps
Add blockchain features to your existing app.
Why Choose Three Circle for Blockchain App Development?
We have built a real crypto wallet app, MomoMi, for users in Africa and the MENA region, and real Stripe, PayPal and Plaid integrations for fintech products. We build security in from the first screen.
Real Crypto Wallet:
MomoMi for Africa and the MENA region.
Fintech Experience:
Stripe, PayPal and Plaid integrations.
Ongoing Support:
30 days free bug fixing after launch.
US-Registered Company:
Registered in Sachse, Texas, working with clients across the US.
Transparent Pricing:
Written estimate before work starts; from $35/hr.
Security Tested
Checked before every release.
Blockchain and Crypto Wallet App Development
Three Circle builds secure crypto wallet and blockchain apps for startups and fintech businesses. Our work includes MomoMi, a crypto wallet app for users in Africa and the Middle East and North Africa (MENA), with cryptography-based security to protect users’ keys and transactions. We design and build the mobile app, the back end and the admin tools, and support the product after launch. Our rates start from $35 per hour.
Crypto Wallet App Development
Mobile wallet apps to store, send and receive crypto, with balances, transaction history, QR codes and push notifications.
Digital Wallet App Development
Digital wallets and payment apps that combine card payments and bank connections through Stripe, PayPal and Plaid. See our payment integration services.
Blockchain Integration for Apps
Connect your web or mobile app to blockchain networks through secure APIs, so users can check balances, sign transactions and track transfers.
Admin Panels and Back Ends
Dashboards for user management, support, monitoring and reporting, with role-based access and audit logs.
MomoMi: Crypto Wallet for Africa and the MENA Region
MomoMi is a crypto wallet app for a US client, built for users in Africa and the MENA region. It uses cryptography-based security to protect users’ private keys and transactions, while keeping the wallet simple enough for first-time crypto users.
See more of our fintech work on the fintech development page and in our portfolio.
Security Built Into Every Wallet
- Cryptography-based protection for private keys and transactions.
- Secure key storage on the device, using the phone’s secure hardware where available.
- Biometric and PIN login with Face ID, fingerprint or passcode.
- Encrypted communication between the app and your servers.
- Role-based admin access and audit logs for your team.
- Security testing before every release.
How Much Does a Crypto Wallet App Cost?
Cost depends on the platforms, the networks and tokens you support, and features such as swaps, payments and identity checks:
- Wallet MVP: a starter MVP starts from $3,000, or $1,500 with our free design of 5-6 key screens.
- Full wallet app (iOS, Android, admin panel, integrations): priced by scope after a free call.
- Hourly work and dedicated developers: from $35 per hour.
Every project starts with a written estimate. Try the app development cost calculator or read how Web3 and blockchain are changing finance.
Our Blockchain App Development Process
- Free call: your users, markets, networks and compliance needs.
- Free design: 5-6 key screens as a clickable prototype.
- Plan: features, security model and a written estimate.
- Build: two-week sprints with test builds you can install.
- Test: functional and security testing before launch.
- Launch and support: App Store and Google Play release, 30 days of free bug fixing, then optional maintenance.
See our mobile app development and MVP development services.
Want results like these? Tell us about your crypto wallet app project and get a free consultation.
Ready to Build Your Wallet App?
Book a free call and get a clear plan and quote for your crypto wallet or blockchain app.
- FAQs
Frequently Asked Questions
Yes. We built MomoMi, a crypto wallet app for users in Africa and the MENA region, with cryptography-based security for keys and transactions.
Yes. We build wallet apps for iPhone and Android, natively or with Flutter, plus the back end and admin panel.
A starter MVP starts from $3,000, or $1,500 with our free design. Full wallet apps are priced by scope after a free call. Our rates start from $35 per hour.
Yes. We design 5-6 key screens of your wallet app as a free clickable prototype, with no obligation.
We protect private keys with cryptography and secure device storage, add biometric or PIN login, encrypt communication and test security before every release.
Yes. We have built Stripe, PayPal and Plaid integrations, so a wallet can also handle card payments and bank linking.
Yes. You get 30 days of free bug fixing after go-live, then optional maintenance, updates and new features.
Yes. Startups can begin with the free design and a starter MVP, then add features in phases.