Comparison

SURVIVALOS vs GridDown

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

SURVIVALOS

Features
Read full description

SURVIVALOS is an offline-first emergency and outdoor preparedness toolkit for moments when the network is unreliable or unavailable. OFFLINE EMERGENCY TOOLS - One-tap SOS with coordinates and signal options - Compass, GPS coordinates, sunrise and sunset reference - Morse code, flashlight, radio frequency notes, whistle, water purification timer, timer - Ruler, level, unit converter, knot guide, supply checklist - Secure vault and emergency contacts REFERENCE LIBRARIES - Survival knowledge for shelter, water, fire, navigation, signaling, and preparedness - First aid references for common emergency situations - Plant notes for edible, medicinal, and poisonous plants - Medication notes and dosage calculator for reference use PRIVACY-FIRST BY DESIGN SURVIVALOS works offline, requires no account, and does not collect personal data. Sensitive notes and files can be stored locally in the secure vault. SURVIVALOS Pro is a one-time purchase that unlocks the full toolkit and offline databases. No subscription. Important: medical and plant information is for reference only and does not replace professional medical advice, emergency services, or expert identification.

About

GridDown

Features
Read full description

GridDown is your personal emergency preparedness and survival planning app. Build your survival team, organize essential supplies, save bug-out locations, create emergency plans, and know exactly where to go when normal systems are unavailable. BUILD YOUR SURVIVAL TEAM Create your trusted emergency network and assign members to important roles including Leadership, Security, Medical, Food & Water, Shelter, Communications, and Morale. Add skills, contact information, notes, photos, and saved locations for each member. PLAN YOUR BUG-OUT LOCATIONS Save multiple bug-out destinations, rally points, supply locations, and other important places. Choose your primary destination and use Apple Maps to view locations and navigate when needed. TRACK FOOD & WATER Build an inventory of emergency food, water, and long-term storage items. Organize quantities, expiration dates, storage locations, and preparedness goals. ORGANIZE YOUR SUPPLIES Track medical supplies, power equipment, lighting, communications gear, tools, fuel, clothing, hygiene products, vehicle equipment, and other essentials. BUILD GO BAGS Create individual emergency bags for yourself, family members, vehicles, or specialized purposes. Use checklists to quickly see what is ready and what is missing. CREATE EMERGENCY PLANS Prepare plans for power outages, severe storms, evacuations, extended grid failures, communication outages, and other emergencies. Create rally points, assign responsibilities, and organize the actions your team should take. SEE YOUR READINESS GridDown brings your preparedness information together into a simple dashboard so you can quickly identify missing team roles, supplies, locations, and planning tasks. MAP YOUR PLAN View team member locations, bug-out destinations, rally points, medical locations, supply caches, and other important places using Apple Maps. OFFLINE-FIRST & PRIVATE Emergency information shouldn't depend on an internet connection or an online account. GridDown is designed around locally stored preparedness information so your essential plans remain available on your device. Whether you're preparing for a storm, extended power outage, evacuation, natural disaster, or simply want your family better organized, GridDown gives you one place to build your plan before you need it. Know your people. Know your supplies. Know where you're going. Be ready with GridDown.

Screenshots

SURVIVALOS4 screens
GridDown4 screens

Verdict

The call

The clearest difference is in-app purchases: GridDown at none against SURVIVALOS's 1. SURVIVALOS's advantage is update cadence (every 2 months vs every 6 months) and iOS requirement (17.0 vs 26.5). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. SURVIVALOS sells 1 one-off in-app purchase. GridDown asks for nothing beyond the download.

UpkeepUpdate frequency

SURVIVALOS ships an update every 2 months, GridDown every 6 months. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

Scorecard3 real differences ยท 3 level
SURVIVALOS versus GridDown: the parameters behind the verdict, then further details
ParameterSURVIVALOSGridDown
PriceFreeFree
Update frequencyEvery 2 months โ€” betterEvery 6 months
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 โ€” better26.5
Further details โ€” not scored
Size24 MB6 MB
Age rating12+4+
Developerwu zhaodongYOURFULLSTACK, LLC

In-app purchases

1 purchases

SURVIVALOS

One-time1
  • SURVIVALOS Pro$6.99
None

GridDown

No in-app purchases

Questions

Is SURVIVALOS free?
SURVIVALOS is free to download, with in-app purchases available.
Is GridDown free?
GridDown is free to download, with no in-app purchases.
Do SURVIVALOS or GridDown have ads?
Neither SURVIVALOS nor GridDown shows ads.
Which is updated more often, SURVIVALOS or GridDown?
SURVIVALOS ships an update every 2 months, and GridDown every 6 months. Most recently, SURVIVALOS was updated on October 13, 2026 and GridDown on October 15, 2026.

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