LifeLine

We love spending time outside, whether it's backpacking, trail running, surfing, or rock climbing. Doing these activities, accidents inevitably happen, often outside of cell service. We built LifeLine to help provide verified advice to assist people in potentially life-threatening wilderness situations.

The problem is simple: when something goes wrong in the backcountry, people need access to trustworthy survival and first-aid knowledge.

LifeLine solves this problem with a local language model that answers from an embedded, curated first-aid and survival focused knowledge base. The app presents information in a crisis-ready format: a short title to set context, a compact “do now” sequence, when to escalate, what to avoid, and sources for transparency. If the right information isn’t in the offline pack, LifeLine provides a "Not Verified" warning and defaults to universal, time-critical safety steps.

Under the hood, the app runs on-device via Apple’s MLX stack and lightweight, quantized models chosen to fit real iPhone memory budgets. A thin Swift bridge streams tokens for immediate feedback, manages memory pressure, and shows a clear progress state during first-run setup.

What sets LifeLine apart is its discipline. It is offline by design and answers from known context. We envision it becoming a crucial companion for your next outdoor adventure.

Built With

• dart
• flutter
• llama
• mlxswift
• python
• sqlite
• swift