When the grid goes down, Failsafe doesn't.
Every guide, chart and tool lives on your iPhone. No signal, no Wi-Fi, no account. Just answers for the power outage, the storm, or the trail where your other apps quit.
$4.99 one time · No subscription · No ads · No account
The app that still works when nothing else does.
Most apps need the internet to show you anything. Failsafe is built the other way around.
100% offline
All 199 guides and every tool are stored on your phone. Airplane mode, dead cell towers, no Wi-Fi: it all still works.
Private by design
No account, no sign-in, no ads. Your location and notes stay on your device.
Home and outdoors
From cooking with the power out to building a shelter in the woods: one app covers both.
15 tools that work without internet.
Calculators, signals and instruments that turn your phone into practical gear.
Flashlight
Bright, one-tap light right from the app.
Compass
Live heading for finding your way without signal.
My Location & Waypoints
See your coordinates and save spots like camp or the truck.
Sun & Moon Times
Sunrise, sunset and moon phase to plan daylight.
SOS Signal
Flash SOS in Morse code with your screen and light.
Whistle & Siren
Loud alert sounds to signal for help.
Level & Slope
Check if a surface is level or measure a slope.
Barometer
Track air pressure to spot incoming weather.
Cook Times Finder
Roasting times and safe temps for chicken, pork and beef.
Bleach-to-Water Calculator
Exact drops of bleach to make water safe to drink.
Water Supply Calculator
How much water your household needs to store.
Food Supply Calculator
Plan food stores for your family and timeframe.
Unit Converter
Cooking, weight, volume, distance and temperature.
Multi-Timer
Run several timers at once for cooking and tasks.
Supply Inventory
Track your supplies and what needs rotating.
83 guides for when the grid is down and you're at home.
Power outages, storms, water problems and medical emergencies. Tap any category to see every guide inside.
Home Kitchen 10 guides
Cook times, safe temperatures, cooking without power, food safety, baking, substitutions and preserving.
Home Kitchen 10 guides
Cook times, safe temperatures, cooking without power, food safety, baking, substitutions and preserving.
- Safe Cooking Temperatures
- Roasting Times: Chicken, Pork & Beef
- Fridge & Freezer Food When the Power Goes Out
- Cooking Without Power
- Measurement Conversions
- Baking & Cooking Substitutions
- Bread From Scratch (With or Without Yeast)
- Preserving Food: Canning, Drying, Salting & Fermenting
- Pantry Staples & How Long They Last
- Planning Food for Your Household
Water 4 guides
Storing, finding and purifying drinking water.
Water 4 guides
Storing, finding and purifying drinking water.
- How Much Water to Store
- Make Water Safe to Drink
- Hidden Water Sources in Your Home
- Collecting Rainwater
First Aid & Medical 13 guides
Emergency care when help is far away: CPR, bleeding, burns, fractures and more.
First Aid & Medical 13 guides
Emergency care when help is far away: CPR, bleeding, burns, fractures and more.
- CPR for Adults
- Choking
- Stop Severe Bleeding
- Burns
- Broken Bones, Sprains & Splints
- Heat Exhaustion & Heat Stroke
- Hypothermia & Frostbite
- Severe Allergic Reactions (Anaphylaxis)
- Cleaning Wounds & Spotting Infection
- Low Blood Sugar & Seizures
- Dental Emergencies
- Medications During Emergencies
- Home First Aid Kit Checklist
Shelter & Home 5 guides
Utility shutoffs, staying warm or cool, and storm damage.
Shelter & Home 5 guides
Utility shutoffs, staying warm or cool, and storm damage.
- Shutting Off Gas, Water & Electricity
- Staying Warm Without Power
- Staying Cool Without AC
- Emergency Storm Repairs
- Preventing & Thawing Frozen Pipes
Power & Energy 4 guides
Making your phone last, generators, solar and light.
Power & Energy 4 guides
Making your phone last, generators, solar and light.
- Making Your Phone Last
- Generator Safety
- Solar Panels, Power Stations & Batteries
- Lighting Without Power
Sanitation & Hygiene 4 guides
Toilets without water, waste, hygiene and stopping illness.
Sanitation & Hygiene 4 guides
Toilets without water, waste, hygiene and stopping illness.
- Using the Toilet When Water Is Out
- Handwashing & Personal Hygiene
- Trash, Waste & Pest Control
- Preventing Illness & Dehydration From Diarrhea
Communication & Navigation 5 guides
Family plans, radios, signals and finding your way.
Communication & Navigation 5 guides
Family plans, radios, signals and finding your way.
- Family Communication Plan
- Emergency Radios: NOAA, FRS, GMRS & Ham
- Signaling for Help
- Morse Code & Phonetic Alphabet
- Finding Your Way Without GPS
Disasters & Weather 10 guides
What to do before, during and after each kind of disaster.
Disasters & Weather 10 guides
What to do before, during and after each kind of disaster.
- Tornadoes
- Severe Thunderstorms & Lightning
- Floods & Flash Floods
- Winter Storms & Ice Storms
- Extreme Heat
- Earthquakes
- Wildfires & Smoke
- Hurricanes
- Long-Term Power Grid Outage
- Pandemics & Sheltering in Place
Fire & Home Safety 5 guides
Fire extinguishers, escape plans, carbon monoxide and security.
Fire & Home Safety 5 guides
Fire extinguishers, escape plans, carbon monoxide and security.
- Using a Fire Extinguisher (PASS)
- Home Fire Escape Plan
- Kitchen & Grease Fires
- Carbon Monoxide & Gas Leaks
- Home Security & Situational Awareness
Growing & Raising Food 5 guides
Gardens, seed saving, compost and backyard chickens.
Growing & Raising Food 5 guides
Gardens, seed saving, compost and backyard chickens.
- Starting a Food Garden
- Saving Seeds
- Composting
- Backyard Chickens
- Container & Small-Space Gardening
Skills & Repairs 6 guides
Knots, mending, basic repairs and car basics.
Skills & Repairs 6 guides
Knots, mending, basic repairs and car basics.
- Essential Knots
- Sewing & Mending
- Basic Plumbing Fixes
- Home Electrical Safety
- Car Basics: Jump Start, Flat Tire & Fluids
- Sharpening Knives & Tools
People, Pets & Coping 5 guides
Babies, kids, older adults, pets and mental health.
People, Pets & Coping 5 guides
Babies, kids, older adults, pets and mental health.
- Caring for Babies in an Emergency
- Helping Kids Through an Emergency
- Older Adults & People With Disabilities
- Pets in Emergencies
- Coping With Stress & Keeping Morale Up
Planning & Kits 7 guides
Go-bags, home and car kits, documents and plans.
Planning & Kits 7 guides
Go-bags, home and car kits, documents and plans.
- Home Emergency Kit
- 72-Hour Go-Bag
- Car Emergency Kit
- Pet Emergency Kit
- Important Documents
- Evacuation Plan
- Rotating & Tracking Your Supplies
116 guides for the backcountry and beyond.
Shelter, fire, water, food and first aid far from help, plus detailed build guides for traps, tools and camp.
Survival Priorities 4 guides
What to do first when lost or stranded.
Survival Priorities 4 guides
What to do first when lost or stranded.
- First Steps When Lost: STOP & the Rule of Threes
- Getting Found
- Pocket & Day-Pack Survival Kit
- Survival Mindset
Shelter Building 5 guides
Choosing a site and building shelters from nature.
Shelter Building 5 guides
Choosing a site and building shelters from nature.
- Choosing a Shelter Site
- Insulating Yourself From the Ground
- Debris Hut
- Lean-To & Tarp Shelters
- Snow Shelters: Trench & Quinzhee
Fire in the Wild 4 guides
Tinder, fire methods, fire lays and wet-weather fire.
Fire in the Wild 4 guides
Tinder, fire methods, fire lays and wet-weather fire.
- Fire Basics: Tinder, Kindling & Fuel
- Fire-Starting Methods
- Fire Lays: Teepee, Log Cabin, Lean-To & Dakota Hole
- Starting a Fire in Wet Weather
Finding Wild Water 3 guides
Finding water outdoors and making it safe.
Finding Wild Water 3 guides
Finding water outdoors and making it safe.
- Finding Water Outdoors
- Making Wild Water Safe
- Transpiration Bags & Solar Stills
Hunting, Trapping & Fishing 8 guides
Game sign, snares, fishing, and processing game.
Hunting, Trapping & Fishing 8 guides
Game sign, snares, fishing, and processing game.
- Know the Law First
- Reading Tracks & Animal Sign
- Survival Snares & Traps
- Survival Fishing
- Cleaning & Cooking Fish
- Field Dressing & Skinning Small Game
- Field Dressing a Deer
- Preserving Meat Without a Fridge
Trap & Snare Builds 34 guides
Step-by-step snares, deadfalls, box traps and triggers, with period illustrations.
Trap & Snare Builds 34 guides
Step-by-step snares, deadfalls, box traps and triggers, with period illustrations.
- Before You Build: Placing Traps
- Simple Wire Snare
- Drag Noose
- Twitch-Up (Spring Pole) Snare
- Twitch-Up Snares: Five Methods
- Spring-Pole Snare Sets
- Bait-Set Spring Snare (Nail Trigger)
- Poacher's & Portable Snares
- Knot-Trigger Snares & the Quail Snare
- Box Snare & Double Box Snare
- Ground Snares: Springle, Figure-4 & Platform
- The Garrote (Arch Snare)
- Squirrel Pole
- Treadle Spring Snare
- Ojibwa Bird Pole
- Noosing Wand
- Figure-4 Deadfall
- Paiute Deadfall
- Deadfall Triggers: Prop, Spindle & Paddle
- Pole Deadfall with a Pen
- Stone Deadfalls
- Hanging Weight Deadfall (Bait & Trail Sets)
- Trip-Trigger Deadfalls (Runways & Dens)
- Portable Wooden Deadfalls
- Tree & Shelf Deadfalls (Deep Snow)
- Large Deadfalls: Raccoon & Otter Runways
- Box Trap (Live Trap)
- More Box Traps: Lid Trap, Double-Ender & Self-Setter
- Figure-4 Box or Stone Trap
- Coop Trap for Birds
- Bird Box Traps: Brick, Box & Pendent
- Bottle (Pit) Trap for Mice
- Rodent Traps for Camp & Cabin
- Steel Trap Sets: Spring Pole, Sliding Pole & Clog
Fishing Gear Builds 7 guides
Make hooks, set lines, nets, fish traps, spears and bait rigs.
Fishing Gear Builds 7 guides
Make hooks, set lines, nets, fish traps, spears and bait rigs.
- Improvised Fishhooks & Gorges
- Stakeout & Set Lines
- Making & Setting a Gill Net
- Fish Traps & Weirs
- Fish Spear & Frog Gig
- Pipe Fish Snare
- Live-Bait & Frog Rigs
Hunting & Tool Builds 12 guides
Throwing sticks, bows, slings, knives, cordage, hides, snowshoes, boats and axe work.
Hunting & Tool Builds 12 guides
Throwing sticks, bows, slings, knives, cordage, hides, snowshoes, boats and axe work.
- Throwing Stick (Rabbit Stick)
- Survival Bow & Arrows
- Sling & Bola
- Spears & Weighted Clubs
- Stone & Bone Knives
- Making Cordage from Plants
- Skinning & Stretching Hides
- Snowshoes & Toboggan
- Dugout Canoe & Bark Canoe
- Axe Work: Felling & Barking a Tree
- Splitting Logs & Making Shakes
- Packs & Tumplines
Camp & Shelter Builds 12 guides
Lean-tos, bough beds, caches, cabins, friction fire, flint and steel, and camp kitchens.
Camp & Shelter Builds 12 guides
Lean-tos, bough beds, caches, cabins, friction fire, flint and steel, and camp kitchens.
- Half-Cave (Rock Overhang) Shelter
- Fallen-Tree & Scout-Master Shelters
- Adirondack Lean-To, Pioneer & Bark Teepee
- Beaver-Mat Hut & Fagot Shack
- Raised Platform (Stilt) Camp
- Bough Bed
- Food Caches
- Notching Logs & a One-Room Cabin
- Bow-Drill Fire (Detailed)
- Flint & Steel Fire
- Fire Lays & Cooking Fires
- Camp Kitchens: Bean Hole, Pit Fire & Reflector
Wild Plants 7 guides
Edible, medicinal and poisonous plants and mushrooms.
Wild Plants 7 guides
Edible, medicinal and poisonous plants and mushrooms.
- Foraging Safely: The Golden Rules
- Common Wild Edibles of North America
- Deadly & Poisonous Plants to Know
- Poison Ivy, Oak & Sumac
- Wild Mushrooms: Why You Shouldn't
- The Universal Edibility Test (Last Resort)
- Wild Medicinal Plants: Use With Caution
Animal Guide 4 guides
Venomous snakes, predators, tracks and encounters.
Animal Guide 4 guides
Venomous snakes, predators, tracks and encounters.
- Venomous Snakes of the U.S.
- Bear Encounters
- Cougars, Coyotes, Feral Hogs & Alligators
- Tracks & Scat Identification
Insects, Spiders & Parasites 5 guides
Dangerous spiders, ticks, stinging insects and edible insects.
Insects, Spiders & Parasites 5 guides
Dangerous spiders, ticks, stinging insects and edible insects.
- Black Widows, Brown Recluses & Scorpions
- Ticks & Tick-Borne Illness
- Bees, Wasps, Hornets & Fire Ants
- Mosquitoes, Chiggers & Leeches
- Edible Insects
Navigation & Weather 4 guides
Map and compass, natural navigation and reading the sky.
Navigation & Weather 4 guides
Map and compass, natural navigation and reading the sky.
- Map & Compass Navigation
- Natural Navigation: Sun, Stars & Moon
- Reading the Weather Outdoors
- Lightning, Flash Floods & Cold Snaps Outdoors
Wilderness First Aid 7 guides
Snakebite, splints, evacuation and outdoor injuries.
Wilderness First Aid 7 guides
Snakebite, splints, evacuation and outdoor injuries.
- Snakebite First Aid
- Blisters & Foot Care
- Improvised Splints, Slings & Stretchers
- Evacuate or Treat in Place?
- Hypothermia, Heat & Dehydration in the Field
- Wound Care Far From Help
- Lightning Strike Victims
Know what you're looking at: 155 species.
Plants, mushrooms, animals and insects of North America, with what's safe, what's dangerous and what to do if something goes wrong.
- Identification features and look-alikes
- Danger level and edibility at a glance
- Habitat, season and region
- Hazards and first aid for bites, stings and poisoning
- Practical uses for food, medicine and camp
- Illustrations throughout
Pay once. Own it for good.
An app built to work when you're cut off shouldn't need a monthly payment to keep working. Buy it once and every guide and tool is yours, including future content updates.
- All 199 guides and 15 tools
- 155-species field guide
- Works fully offline
- No subscription, no ads, no account
- Free content updates
Questions, answered.
Does Failsafe really work with no internet?
Yes. Open the app once while connected so it can finish loading. After that, every guide and tool works in airplane mode, with no cell signal or during a power outage, as long as your phone has battery.
Is there a subscription?
No. Failsafe is $4.99 one time. There are no subscriptions, no ads and no in-app accounts.
Why does it ask for my location?
Only the compass, location and waypoint tools use it, to show where you are. Your location stays on your phone and is never sent to us. You can decline and still use every guide.
Which devices does it run on?
Failsafe is built for iPhone.
Will new guides be added?
Yes. Content updates are included with your purchase. Connect now and then to receive them.
Download it before you need it.
The best time to put a survival guide on your phone is while you still have signal.
Get Failsafe for $4.99