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.
You’re on the list.
We’ll email you when iSurvive is ready to download.
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.”
How it works
Learn it. Practise it. Use it when it’s real.
Learn
Bite-size cards on what to do before, during and after an emergency, from typhoons and earthquakes to home fires and first aid.
Practise
Missions, quizzes and timed drills. Build your household plan and kit, then earn a certificate for each topic you finish.
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
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.

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.
You’re on the list.
We’ll email you when iSurvive is ready to download.
Coming soon to Google Play and the App Store