Logo Coinfy

Inspiration

What it does

How we built it

Challenges we ran into

Coinfy: Making Bitcoin Safer for Everyday Users

What Inspired Us

Bitcoin offers financial freedom, but it also comes with complexities that many users are unaware of. We saw too many people making mistakes that could compromise their security, privacy, and even their funds—without even realizing it. The biggest issue? The unintentional mixing of KYC UTXOs (those linked to identity verification) with P2P UTXOs (used in private, peer-to-peer transactions). This mistake can erode privacy and increase risk.

We wanted to create a Bitcoin wallet that prevents these issues before they happen, allowing users to transact confidently without needing deep technical knowledge.

What We Learned

Building Coinfy reinforced the importance of educating users through design rather than just relying on documentation. Many Bitcoin wallets provide advanced features, but they often assume users already understand concepts like UTXO management, coin control, and privacy best practices. We learned that most people just want to use Bitcoin safely without having to become experts.

By focusing on a smart, user-friendly experience, we realized that security and simplicity don’t have to be trade-offs. A well-designed wallet can guide users toward the right decisions without overwhelming them.

How We Built It

Research and UX Design – We studied common user mistakes and privacy threats in Bitcoin transactions. We designed an intuitive interface that integrates best practices seamlessly.
UTXO Segregation – We built a system that automatically detects and separates KYC and P2P UTXOs, preventing accidental mixing.
Smart Warnings – Instead of complex settings, Coinfy gives users simple, clear alerts when an action might compromise privacy.
Privacy-First Approach – We avoided unnecessary data collection, ensuring users maintain control over their Bitcoin transactions.
Security-Focused Development – We implemented strict security standards, leveraging open-source cryptographic libraries to keep funds safe.

Challenges We Faced

Balancing Security and Simplicity – Making a wallet secure is easy when you assume users have deep knowledge, but making it secure and user-friendly was a major challenge. We spent time refining the experience to ensure users could transact safely without extra complexity.
Educating Users Without Overloading Them – Many people don’t know about the risks of mixing KYC and P2P UTXOs. We had to design Coinfy in a way that subtly educates users while keeping the experience smooth.
Technical Implementation of UTXO Filtering – Creating an efficient and reliable system to separate UTXOs required extensive testing and optimizations to ensure transactions remain private and seamless.

Conclusion

Bitcoin should be safe and easy for everyone, not just experts. Coinfy helps users avoid critical mistakes before they happen, ensuring secure and private transactions without requiring deep technical knowledge. By prioritizing both security and simplicity, we aim to make Bitcoin more accessible, private, and user-friendly for all.