Compass

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iOS requires a tap + permission for motion/orientation.

Unit Converter

= 1

Morse Code

SOS Beacon

Pattern: … -- -- -- …

CPR Metronome

110 BPM

Recommended: 100–120 compressions/min

Cycle helper: 30 compressions : 2 breaths

Sunrise / Sunset

Sunrise: --
Sunset: --
Daylight: --

Works offline with NOAA equation (approx.).

Water Purification

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Guidance: 1 min rolling boil (3 min > 2,000 m). 1 chlorine dioxide tab / 1 L (check label).

Knot Guide

    Map

    Tiles cache after first load (offline later).

    Emergency Whistle

    Flashlight

    Torch requires support; screen flash always works.

    Weather

    --

    Uses Open-Meteo if online; stores last reading for offline.

    First Aid

    First Aid ABCs

    1. Airway: Tilt head, lift chin. Clear obstructions.
    2. Breathing: Look, listen, feel. Give 2 rescue breaths if not breathing.
    3. Circulation: Check pulse. Start compressions 100–120/min.

    Direct pressure for bleeding; tourniquet only for life-threatening limb bleeding.

    Bleeding Control

    Direct pressure 5–10 min. Pack deep wounds. Tourniquet 2–3" above wound; tighten until bleeding stops; record time.

    Fire Starting

    • Build on dry base; shield from wind.
    • Tinder → kindling → fuel.
    • Carry two ignition sources (lighter + ferro rod).

    Shelter

    2h
    Gear
    Fill the fields and tap "Get Plan".

      Wind Chill

      --

      Ground Insulation Tip

      Stay off cold ground. Aim for pad R-value ≈ (10 − T/10) for freezing conditions (rule of thumb). Add debris/duff under you.

      Edible Plants

      • General: Avoid unknown plants. Positive ID only.
      • Energy: Nuts, seeds, berries (known), fish.
      • Avoid: Milky sap, bitter/almond smell, umbrella clusters (hemlock look-alikes).