DBL Nexus iSurvive with Marichu
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iSurvive with Marichu

I don’t do panic. I do prep.

The free survival and emergency guide that works with zero signal: bite-size lessons from official sources, a 2-tap Panic mode and checked emergency hotlines.

We use your email only to tell you when iSurvive launches. See our Privacy notice.

Coming soon to Google Play and the App Store

by DBL Nexus

  • Free
  • Works offline
  • Content from official sources
  • English & Tagalog

The problem

Safety guides get downloaded. Then deleted.

Most free safety guides are long, dry and forgotten until the day they’re needed. By then there’s no signal and no time to read.

iSurvive is the survival app you actually keep. Bite-size cards, missions and quizzes make preparing a habit, and Marichu, your sarcastic, ultimately very supportive guide, makes sure it sticks.

“Your go-bag is a vibe, not a plan.”

“May emergency fund ka? Ah, yung ‘bahala na’? Okay.”

“Ten minutes today. Then you’re the one who knows what to do.”

Marichu, on your excuses

How it works

Learn it. Practise it. Use it when it’s real.

  1. Learn

    Bite-size cards on what to do before, during and after an emergency, from typhoons and earthquakes to home fires and first aid.

  2. Practise

    Missions, quizzes and timed drills. Build your household plan and kit, then earn a certificate for each topic you finish.

  3. Panic mode

    In an emergency, two taps open calm, plain step-by-step instructions and the right emergency number for your country.

What’s inside

Everything you need, even with zero signal

  • Learn

    6 hazard families, about 50 topics and 800 cards, split into Before, During and After. Includes Philippine topics such as PAGASA signals, PHIVOLCS alert levels, dengue and leptospirosis.

  • Panic mode

    26 guides in two taps, including CPR, choking, bleeding, stroke, fire, flood and earthquake. Plain steps, and the right number for your country.

  • Hotlines

    About 40 countries, checked against official directories. Dial by service: police, ambulance, fire, poison or crisis line.

  • Offline chat

    Chat with Marichu in English, Tagalog or Taglish, fully offline. Answers come from the app’s checked content. She won’t diagnose or suggest doses.

  • My Plan

    A household plan, a kit list sized to your household, missions, timed drills and a quick check of how ready you feel.

  • Certificates

    A certificate for each topic you complete, plus share cards to get your family and friends prepping too.

  • Languages

    English and Tagalog. In Tagalog: the app’s menus, the chat and the Panic mode steps. Lessons are in English for now.

  • Foldables

    Two-pane layouts on foldable phones such as the Galaxy Z Fold 8, so lessons and steps sit side by side.

Panic mode

Calm, plain steps in two taps

When an emergency is happening, there is no lesson and no humour. Panic mode gives clear, numbered instructions based on official sources, in English or Tagalog.

  • Opens in two taps from anywhere in the app.
  • Shows and dials the correct emergency service for your country.
  • Works without a data connection.
  • No ads on emergency screens.

26 guides, including

  • CPR, adult
  • CPR, baby
  • Choking
  • Severe bleeding
  • Burns
  • Stroke
  • Heart attack
  • Seizure
  • Allergic reaction
  • Poisoning
  • Drowning
  • Gas and carbon monoxide
  • Fire
  • Flood
  • Earthquake
  • Typhoon
  • Tsunami
  • Tornado
  • Landslide
  • Lockdown

Important: iSurvive is educational. It is not a substitute for emergency services or professional medical advice. In an emergency, always call your local emergency number first.

Privacy

Your plan stays on your phone

  • No account

    No sign-up and no login. Open the app and start.

  • Stays on your device

    Your progress, plans and certificates are stored only on your phone. No personal data is sent to us.

  • Delete everything

    “Delete all my data” in your Profile erases it all, in one tap.

Read the full Privacy Policy.

For schools, LGUs and teams

The same guide, in a neutral voice

Schools, barangays and LGUs, NGOs and employers can switch Marichu mode off for a neutral, serious voice, with the same content from official sources, the same Panic mode and the same offline access.

Setting: Marichu mode: Off

Request the schools & LGU info pack

Content from official sources

  • Red Cross
  • WHO
  • CDC
  • NHS
  • Philippine Department of Health (DOH)
  • PAGASA
  • PHIVOLCS

iSurvive is independent and not affiliated with these organisations.

Portrait of Dean B. Lahoz

Who’s behind it

Designed to make the prep stick

Learning design by Dean B. Lahoz, Founder & CEO, DBL Nexus

Dean spent a decade as a learning and development manager, building training that teaches real skills to frontline teams in the Philippines, Japan and the United States. iSurvive brings that craft to preparedness: short lessons, hands-on practice and recall checks.

FAQ

Common questions

Is iSurvive free?

Yes. iSurvive is free, with ads. Ads never appear on emergency screens.

Does it work without signal?

Yes. Lessons, Panic mode steps and the chat with Marichu work fully offline. Placing a call to an emergency number still needs your phone’s network.

Where does the content come from?

From official sources such as the Red Cross, WHO, CDC, NHS, the Philippine Department of Health, PAGASA and PHIVOLCS. Hotlines are checked against official directories. iSurvive is an independent app made by DBL Nexus.

Is iSurvive a substitute for emergency services or a doctor?

No. iSurvive is educational. It is not a substitute for emergency services or professional medical advice. In an emergency, call your local emergency number first. See our Terms.

Does Marichu joke during an emergency?

No. Marichu’s humour stays in the lessons. Panic mode, hotlines and safety steps use calm, plain language. In chat she recognises emergency messages and will not diagnose or suggest medicine doses.

Which languages does it support?

English and Tagalog. In Tagalog you get the app’s menus, the chat (Tagalog or Taglish) and the Panic mode steps. Lessons are in English for now.

What data does iSurvive collect?

There is no account. Your progress, plans and certificates stay on your phone, and no personal data is sent to DBL Nexus. Details are in the Privacy Policy.

When can I download it?

iSurvive is coming soon to Google Play and the App Store, starting in the Philippines and the United States, then worldwide. Join the waitlist and we’ll email you when it’s ready.

Waitlist

Be ready before you need to be

Get one email when iSurvive launches.

We use your email only to tell you when iSurvive launches. See our Privacy notice.

Coming soon to Google Play and the App Store