Features

Every Koruya feature answers one question: does it really help you and the people you love in a disaster?

Koruya is a mobile app that helps you prepare for disasters, reach information published by official agencies and scientific networks when one strikes, and tell the people you love “I'm safe”. It brings maps, guides, a preparedness plan and emergency tools for earthquakes, floods, wildfires, storms and other disasters into one place, and some of them work without internet. Koruya is not an official warning system: if your life is in danger, call your local emergency number.

Disaster information from official and scientific sources

Koruya shows earthquake and disaster records published by official agencies and scientific networks on a map and a list.

Earthquake records from sources such as USGS and EMSC; disaster events from sources such as GDACS and NASA EONET.
Every record shows the source's name and the record's time.
Sources can be late or incomplete; Koruya does not hide this and never shows old information as new.

Related guides

How it works

For earthquakes, Koruya queries the last 7 days: magnitude 1 and above (USGS) and magnitude 2 and above (EMSC) within about 1000 km of you, and magnitude 4.5 and above worldwide.
Every record is labelled with its kind: official warning, measurement record, automatic alert system, satellite detection or model estimate. An estimate or a satellite detection is never presented as an official warning.
When the same earthquake appears in more than one catalogue, it is merged into one event, so you do not see it twice and are not notified twice.
You can save places that matter, such as home or school, in “Places I follow”. Events near them are sorted by kind, official warnings first.
An alert's details say whether it was created on this phone from public data sources (local alert) or sent by the Koruya server (push notification).

Privacy

To fetch information, your coordinates go to the data sources mostly rounded to 1–2 decimal places. A search for critical places sends the centre of a grid cell of roughly 1–5 km instead of your exact location. These requests carry neither your name nor your account ID.
Outside an SOS, no new location is read in the background; nearby disasters are checked against the last location saved on your phone. The places you follow are stored encrypted on your phone.
When you allow notifications, your phone registers with the notification server under a random installation ID that holds no name, e-mail or exact location. An area cell of about 5 km is kept only if you turn it on separately.

Limits

Sources can be late or incomplete. A source that does not answer gives no information; that does not mean nothing is happening.
Your phone decides when background checks run, and battery saving can delay or skip them. Koruya cannot guarantee that you will be alerted to every event.
Warnings issued by Türkiye's official agencies are not connected to the app yet, and there is no verified live source of official landslide warnings for Türkiye.

Family and “I'm safe”

The first question after a disaster is always the same: is everyone all right?

Set up a family group and add your loved ones with a one-time QR invite.
Say “I'm safe” with one tap; your family sees your latest status when they open the group (no automatic notification yet).
Share preparedness jobs as family tasks; a safety circle is the list of people you share your status with.
Your location is visible only if you turn sharing on. “Unknown” is never shown as “safe”.

Related guides

How it works

You create a family group with a Koruya account that has a confirmed e-mail. A person can be in at most 5 groups, and a group holds up to 20 members.
A group admin shows a one-time QR code; the invited person joins by scanning it on their own phone within 15 minutes and accepting. Nobody is added without accepting on their own phone.
You share your status (I'm safe, I need help, I'm injured, I can't move) from a safety circle. When the circle is linked to a family group, everyone in the group sees the status through the server. Without a connection, the status waits on your phone and is sent automatically once you are online.
A member who has shared no status in the last 24 hours shows as “Unknown”; an old “I'm safe” is never shown as if it were current.
Family tasks are preparedness jobs shared in the group (to do, in progress, done). A change counts only once the server confirms it; without a connection, the task is kept on your phone.

Privacy

Location sharing is set per group and is off by default; while it is off, your statuses are sent without a location. If you turn it on, group members see the location attached to your statuses. Turning it off removes the coordinates of your earlier statuses from the server.
An invite code works once and expires; it contains no password, phone number or e-mail. A safety circle is just a list of people kept on this phone: nothing is shared unless you link it to a group.
On the server, only the group's members can see the group's data. Family status updates are deleted after 30 days, and family SOS records 30 days after the SOS ends.

Limits

Members are not notified automatically yet: they see your status when they open the group.
A family group needs an account and internet; you cannot create or join a group without a connection.

Preparedness plan and emergency bag

Preparing reduces what you have to think about in a disaster.

Household plan and meeting point.
Emergency bag checklist; preparedness reminders in your calendar.
Your medical card and plans are encrypted on your phone. Emergency contacts are deliberately not encrypted: SOS must work even when the key store cannot be read.

Related guides

How it works

A household plan is what everyone at home agrees on before an emergency: where you meet, whom you call first, who takes the go-bag and who helps whom.
The family meeting plan keeps separate meeting points for home, school and work, and its card also opens without internet.
The go-bag starts from a 72-hour checklist scaled to your household, with the source of each item shown.
Preparedness reminders go into the calendar on your phone; for example, you are reminded a week before a medicine in your kit expires.
The document vault keeps photos of important documents such as your ID, insurance or deeds on this phone only, encrypted. The emergency information card shows contacts and details for a responder, offline.

Privacy

Household and family plans, medical details, the document vault and personal plans are encrypted on your phone with AES-256-GCM. The key is random, kept in the phone's secure key store and never leaves the phone.
Emergency contacts are deliberately not encrypted, so that an SOS still works even if the key store cannot be read.
Your health details go to the cloud only if you give separate, explicit consent; if you withdraw it, the cloud copy is deleted. The household plan is not shared with your family group.

Limits

Android does not back up Koruya's data: what you save without an account does not move to a new phone, and encrypted records do not open on another phone.
The check reminder on the go-bag screen sends no notification in this version; it only saves the next check date.
Meeting points are planned places; they are not verified as safe during a disaster.

Offline maps and guides

The internet is one of the first things a disaster cuts. Koruya plans for that from the start.

Download your area's map pack in advance.
Critical places like hospitals and pharmacies open without internet.
Guides show their source and the date they were checked.
Relay through nearby phones (Bluetooth) is experimental, mobile only, and not yet on in the store version.

Related guides

How it works

You download your area's map pack from the Offline maps screen. Hospitals, pharmacies, fire stations and assembly points come with the pack.
Places from a pack are shown with the date the pack was saved. If you are outside every pack, the app says so plainly.
Guides, including the aftershock, stay-inside and heat-health guides, open without internet and show their sources in writing.
Koruya Signal, the help card, the communication cards and SMS fallback work without internet.

Privacy

Downloaded packs stay on your phone. If you are signed in with a Koruya account, only the names of your offline areas are saved to it.
Map packs are downloaded from Koruya's distribution service (Cloudflare).

Limits

Critical places come from OpenStreetMap community data and can be incomplete; assembly points on the map are not confirmed as official assembly areas.
You need to download a pack before a disaster, while you are online. Where no pack covers the area, the map does not work offline.
Relaying through nearby phones (Bluetooth) is experimental; it and offline route calculation are not switched on in the store version yet.

Lessons: Koruya Learn

Knowing what to do in advance makes the biggest difference when disaster strikes.

Short lessons for earthquakes, floods, fires, storms and other disasters.
Every lesson shows its source; plain language, step by step.
Made for learning now, not during a disaster.

Related guides

How it works

Every lesson is summarised from official pages and shows its sources together with the date Koruya last checked them.
Lessons are made of short info cards, exercises and a summary. A different answer is never branded “wrong”: “Let's look at this one again.” Questions you answered differently come back after 1, 3, 7, 14 and 30 days.
Mini drills are two-minute “what would you do?” questions on earthquakes, house fires, floods and storms; every answer is explained from its source.
The drill simulator lets you practise with decision-point scenarios such as an earthquake at home or a flood in the neighbourhood. No call, message or notification is sent, and your location is not used.
In easy mode the text is larger, one question shows at a time and there are no timed questions.

Privacy

Your learning record is saved on this device only, for your account, and is not sent anywhere.
For real-world tasks, only the fact that you finished is saved; no photo, location or proof is asked for.

Limits

Lessons have not yet been approved by a subject expert (“Expert review pending”), and questions on health topics are waiting for an expert review.
Exercises and the learning record are not an official drill, certificate or qualification.
Texts in languages other than Turkish and English have not yet been reviewed by native speakers.

Emergency shortcuts

When seconds count, Koruya shortens the way but never decides for you.

The emergency call button opens your phone app with the verified emergency number of the country you are in; you start the call.
SOS prepares a message with your location and a map link for you to send; you send it.

Related guides

Earthquake

How it works

An SOS starts when you hold the button for 3 seconds; you then have 5 seconds to cancel, and you can still cancel at any time after it starts. If no location is found, the SOS starts without one after a few seconds.
The SOS prepares a message with your name, the time, your coordinates and a map link for the app you choose (SMS and others); you send it yourself. If you are in a family group, the SOS is also recorded on the server for your group.
The emergency call button opens your phone app with your country's emergency number, verified against an official source; you start the call. If the number cannot be verified, the app says so plainly.
The emergency call location screen shows your address, coordinates and Plus Code in large type, ready to read out on the call.
SOS, the emergency call, Koruya Signal, SMS fallback, the “I'm under debris” page and the help card open without waiting for an account, a plan or internet. These tools are kept apart from subscription and analytics code, and automated tests check this on every build.

Privacy

Location is used in the background only when you start an SOS, while the SOS stays open, and with an ongoing notification; it stops when the SOS ends.
Koruya does not send SOS messages from its own server; the message goes from the app you choose. In an SOS shared with your family, the location is sent only if you have turned on location sharing.

Limits

Koruya cannot confirm that a message or call has reached the other side.
Without internet, phone calls and SMS still work, but messaging apps may hold a message until you are online. The family server record also waits for a connection.
Family members are not yet notified automatically about an SOS.

For everyone

Disasters affect everyone. We design Koruya so that everyone can use it.

10 languages, including Arabic, which is written right to left.
Large text, high contrast and screen reader support.
Easy mode: larger text, a simpler home screen and fewer choices.

Related guides

Extreme heat

How it works

The app is in 10 languages: Turkish, English, German, French, Spanish, Arabic, Russian, Portuguese, Hindi and Chinese. In Arabic, screens are laid out right to left. You can pick the language regardless of your phone's language.
Text size can be set from 0.8× to 1.6× inside the app, and it works together with your phone's own text size. There are separate settings for high contrast and reduced motion.
Easy mode gives larger text (at least 1.3×), a plainer home screen and fewer options; Koruya Learn's easy mode is the same switch.
The accessible alarm is for people who are deaf or hard of hearing: when an alert is opened in Koruya, the screen and the torch flash slowly, the phone vibrates and the alert appears in large text.
Communication cards are short sentences with large icons (water, help, pain, medicine…) to show or have read aloud when speaking is hard or you do not share a language.

Privacy

Communication cards work without internet and send nothing. Reading aloud uses your phone's own text-to-speech voice.

Limits

The accessible alarm applies only to alerts opened in Koruya; it does not replace the phone's own emergency alerts and cannot wake a phone that is switched off or silenced by the system.
Translations into languages other than Turkish and English have not yet been reviewed by native speakers; on communication cards, point to the icon as well.
Screen reader labels are checked by automated tests; hands-on testing with TalkBack and VoiceOver on real devices has not been done yet.

How it differs from official warning systems

How Koruya differs from official warning systems

Koruya does not replace official warnings; it is designed to be used alongside them. Here is where official systems are strongest, and what Koruya adds.

Topic	Official warning systems	Koruya
Who issues the warning?	Public authorities publish the warning themselves; they hold its official, current version.	Issues no warnings of its own. Shows records published by official agencies and scientific networks, with their source and time.
How does it reach your phone?	In many countries, warnings are sent straight to phones through the mobile operators (Cell Broadcast). No app is needed; the phone's setting just has to be on.	Needs notification permission. Your phone decides when background checks run, so an alert can be late.
Earthquake early warning	Some countries and phones have separate systems and settings that aim to warn before the shaking arrives.	Gives no earthquake early warning; it shows earthquakes that have already happened.
Kind of information	A warning from an authority.	Labels every record with its kind: official warning, measurement record, automatic alert system, satellite detection or model estimate. Sources can be late or incomplete.
Coverage	Each authority warns for its own country or region.	Brings open sources from different countries onto one map. Warnings from Türkiye's official agencies are not connected yet.
Preparedness	Authorities publish preparedness guides on their websites.	Gathers short, sourced summaries of those pages in one app, together with a household plan, a go-bag checklist and lessons.
Reaching the people you love	Warnings go one way: they are broadcast to the phones in an area.	With a family group and “I'm safe”, you see your family's latest status. Members are not notified automatically yet.
Without internet	Cell Broadcast runs over the mobile network; no mobile data is needed.	Downloaded map packs, guides and emergency tools open offline. New disaster information needs a connection.

Keep your phone's official emergency alerts switched on and use Koruya alongside them. The Alarm Readiness Test in Koruya goes through these settings with you in about 3 minutes. If your life is in danger, call your local emergency number.

Which devices?

iPhone and Android first; the first phase of the web app is open. Watches are next.

Planned · Coming soon

iPhoneComing soon to the App Store Coming soon
AndroidComing soon to Google Play Coming soon
Webapp.koruya.app · phase 1 open Phase 1
Apple WatchPlanned; no watch app yet Planned · Coming soon
Wear OS watchesPlanned; no watch app yet Planned · Coming soon

The browser shows today’s koruya.app website (a real page screenshot). The web app is at app.koruya.app (phase 1). The watch screens are drafts of a planned design; Koruya has no watch app today. The phone screens are the app's real screens: the app's own interface with sample data (place İstanbul - Beşiktaş, app in English; events, weather and family roles are samples, no real person). The watch pictures are illustrations.

What Koruya does not do

Honesty is the first step to trust.

Koruya is not an official warning system or an earthquake early warning system.
Your phone's operating system decides when a notification arrives; Koruya cannot guarantee it.
Route and map information is approximate; it cannot confirm that a road is open.
You start the SOS message and the emergency call; Koruya cannot confirm they were delivered.

What is on the web? Phase 1

Koruya’s web app is open at app.koruya.app (phase 1): sign in and sign up with your Koruya account (e-mail or Google; Apple coming soon), your family’s latest status and “I’m safe” without location, alerts and events, the map, guides, Koruya Learn and settings.

The web app does not have every feature of the mobile app: no SOS, no push notifications, no Bluetooth (relay through nearby phones is experimental on mobile too and not yet on in the store version). It does not guarantee to warn you; for warnings, use the mobile app and official channels.

Use on the web

The phone screens are the app's real screens: the app's own interface with sample data (place İstanbul - Beşiktaş, app in English; events, weather and family roles are samples, no real person). The watch pictures are illustrations.