Hemo

Hemo is an iOS app that turns the desperate search for blood donors into a streamlined, secure network. Hemo prioritizes the right donors at the right time while maintaining total privacy.

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Inspiration

We were inspired by the chaotic and unreliable way people currently search for blood donors through social media and WhatsApp groups.

What it does

Hemo is a secure iOS "network" that connects verified blood donors with those in urgent need. Using a "Find Now" button, the app only reveals compatible donors when a real emergency is triggered.

How we built it

We built the application natively for iOS using SwitfUI to ensure a high performance, modern interface. For the core logic we implemented:

Maps by Apple: To handle proximity mapping and hospital locations. Swift Data: To manage the database updates and secure user authentication. Weighted Algorithms: A backend logic that protects universal donors (O-) by prioritizing exact matches first.

Challenges we ran into

The biggest challenge was balancing extreme urgency with user privacy. We also had to map out complex medical filters.

Accomplishments that we're proud of

We are incredibly proud of our Dynamic Tier Scaling algorithm. It simulates how a real-world emergency evolves

What we learned

The project taught us that great engineering must be paired with empathy.

What's next for Hemo

Our roadmap includes a visual module for Organ Donation registration and direct syncing with official hospital blood bank inventories.

Built With

  • maps
  • swiftdata
  • swiftui
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