Brazilian app · Private family communication
Your family close, even from afar.
Alkateia brings private chat, live location, SOS, and age-based friendship rules into a space made for trusted people.
ChatLocationSOSFamily
Alkateia connects the people already in your life
SOS
When there is no time to explain.
SOS sends an alarm to the whole family and shares your live location. A direct way to reach out when every second matters.
AlertLocationFamily
Alert sentAlarm + live location.
The family always receives it
A private space
No public profiles. No exposure. No strangers.
Alkateia has no public people search, followers, or open groups. Connections happen by invitation between people who already know each other.
No public searchNo followersDirect invitations
Private circle
?
Public profiles
NOSearching for strangers
NOEntry by invitation
YESFriendships with age-based rules
Independence with supervision at the right age.
Under age 15, a new friend needs a parent or guardian's approval. From 15 to 17, the parent or guardian is simply notified.
< 15 approval15–17 notification18+ direct
Bruna
Mel
Friend request sent
Bruna received a friend requestShe is under 15, so you decide.
< 15 · approval15–17 · notification18+ · direct
Live location
See where the people who matter are on the map.
Share your current location, for a limited time, or live. While sharing is active, the map follows the person's movement in real time.
Current15 minLive
Live location
Movement updatedVisible to the people you shared it with
Family battery levels
Keep an eye on their battery.
Check family members' battery percentages and know when someone is running low.
Scroll through this section ↓0 → 100%
Low battery
Juan has 14% battery left.
Try sending a reminder.
Members' battery levels0%
Júlia0%
Juan0%
Mel0%
The percentage follows your scroll — and goes back as you scroll up.
Conversations
Private conversations can be fun too.
Text and voice messages stay in a private space. While chatting, you can send bubbles, hearts, eggs and other reactions — because not every family conversation needs to be serious.
Open the reactions button and try it
Family● online
I'm at school 💙
Have a good class. Let me know when you leave.
I'll share my location when I'm heading home.
chat reactions →
Inside Alkateia
Made for your family's conversations.
Family guides
Useful information is part of caring.
Clear content about digital safety, location, communication, and situations that are part of everyday life for parents, children, and teenagers.
01
How to communicate without relying on social media
Ways to stay in touch without making every conversation public.
↗ 02How to share location as a family
When to use it, how long to share, and how to discuss privacy and independence.
↗ 03Cyberbullying, grooming, and digital safety
Important concepts explained clearly to help recognize signs and start conversations early.
↗About XOSSI
Technology created for real needs.
XOSSI is the company behind Alkateia. The app is our first project and the starting point for a company created to develop useful new digital products.
First project: AlkateiaBrazil
Your Alkateia is almost here
Want to know when the app is available to download?
Leave your email and receive Alkateia's launch notification.
—days
—hours
—minutes
—seconds
Launch planned for October 9, 2026.
Get in touch
Your feedback is part of this story.
Send a message to the Alkateia team.
Frequently asked questions
Meet your next Alkateia.
What is Alkateia?
A Brazilian family communication app bringing together private chat, text and voice messages, location sharing, and SOS.
Who can join the family?
People you choose, through temporary invitations and approval. A family includes up to five members.
Can I talk to friends?
Yes. Trusted friends can chat individually without joining the family group. Under age 15, new friendships require a parent or guardian's approval.
Can a friend receive my SOS?
Yes, you can include a friend to receive the alert alongside your family.
Where can I learn about plans?
Prices and terms are displayed in the app before you confirm a subscription.