Told on arrival, without asking
Home, school, the office: Fenzly detects arrivals and departures at the places you share. You choose the alerts, place by place, person by person. Nothing by default.
See the guide Private family location Coming soon to iOS and Android
Always close,
never tracked.
Your family can know where you are. We can't.
Your arrivals, your trips and your position, for the people you choose. End-to-end encrypted, on your phone.
Notify me at launch See the features14-day trial, no card required · Designed and hosted in Switzerland
- End-to-end encryptedOn your phone, for each person
- Blind serverIt carries, it cannot read
- Hosted in SwitzerlandSwiss law, nDPA and GDPR
- No adsPaid by subscription, not by your data
With your people
Built for real life.
Four features for every day with the people who matter. None of them requires handing your position to a server.
"On my way", the Fenzly way
Share your live position with a person or a circle, for a set time or until you arrive. It stops by itself, no invitation to manage.
See the guide
An SOS that wakes everyone up
A red button on the map, ten seconds to cancel a slip, then your people's phones ring until one of them takes charge, and they follow your position live. The server knows an alert happened, never where you are.
See the guideConversations
Each circle has its conversation, encrypted like your positions, photos included. A live share also starts from there.
See the guide
Your timeline
Your days write themselves.
Fenzly turns your movements into a readable journal: where you stayed, for how long, and the trips in between. It builds itself in the background: all you do is name your places. It goes back as far as you decide and lives only on your phone.
Name your places once
Fenzly knows where you stopped, not what the place is. Name it once, with suggestions of nearby places, and every later visit is recognised.
See where your time goes
How long at the office this month, how many visits to the club this year: by place, by category, by period.
Every trip, with its mode
Car, bike, walk, run, bus, train. Live speed, distance and elevation during an outing, then GPX export. No smartwatch, no third-party account.
Yours alone, or shared
The journal leaves your phone only if you choose "Everything" in a circle: your people then see your day, not just a dot on a map.
Trip recording is on by default. If you would rather Fenzly did not record your trips, the Simple mode keeps only your arrivals and departures at your places.
Coming soon
Coming soon to iOS and Android
Fenzly is coming soon to iOS and Android. Leave your email and get a single message, on launch day.
Notify me at launch
Circles
Your circles, your rules.
A circle is a private group: family, couple, friends. Everyone chooses what they share, circle by circle, and can change their mind at any time.
- By invitation, with your consentA code like FZ-7K4M-92 or a link is enough. Nobody enters a circle until you confirm.
- One circle per group that mattersShare everything with family, only arrivals with friends: the setting belongs to each circle.
- Places shared once for everyoneAdd home or school to the circle: each member detects their own arrivals, with nothing to create.
For families who want to stay close, not to watch each other.
Between adults, sharing is always a choice. For the youngest, child mode sets an explicit frame: a guardian turns it on with parental consent verified by SMS, and the app applies guardrails.
- The child only talks and shares with their family and the contacts a guardian allowed.
- Invitations and messages from strangers are blocked before they reach them.
- The guardian can require location sharing to stay on.
- The child keeps the SOS button, which alerts their guardians.
The principle
Even we can't see where you are
The server carries your position. It cannot read it: everything is encrypted on your phone, for each recipient.
- Double Ratchet end-to-end encryption, the same protocol family as Signal.
- The server sees no positions, no trips, no place names, no circle members, no messages.
- The “What the server knows about me” export is in the settings: your account, your devices, your subscription. Nothing else.
Blind server
Only ever sees ciphertext
Over time
Reliable, even when the network is not.
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Offline
With no network, place detection and trip recording carry on, on the phone. Only sharing waits for the connection to return.
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Easy on the battery
Fenzly reacts to events, an arrival, a departure, a trip, instead of keeping the GPS on. Sitting still, it uses almost nothing.
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Encrypted backup
In your iCloud or Google Drive, with a key split in two that neither Fenzly nor your cloud can use alone. Or hosted in Switzerland, protected by a code only you hold.
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No password
A one-time code by SMS or email at each sign-in. Nothing to remember, nothing to leak.
Designed and hosted in Switzerland
Fenzly is built by Logil Sàrl. Our servers are at Infomaniak, in Switzerland, under Swiss law, in line with the nDPA and the GDPR. Switzerland protects the frame, encryption protects the content.
Business model
You pay for the service. Not with your data.
Fenzly is paid, on purpose: no ads, no data resale, and the same protection in every plan.
- Mono1 licenseFor one person
- Duo2 licensesFor a couple, or a parent and a child
- Family8 licensesFor the whole family
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14-day trial
No card, no automatic billing.
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One person pays
They assign a license to each member. The others pay nothing.
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Nothing is deleted when it ends
Without a license, an account keeps seeing its people, without sharing itself.
Prices are shown in the App Store and on Google Play.
Why Fenzly costs money, and why that's good news FAQ
Frequently asked questions
We explain how Fenzly works, limits included.
Can Fenzly see my position?
No. Each position is encrypted on your phone, for each recipient, before it is sent. The server knows whom to forward a message to, never what it contains.
Does Fenzly drain my battery?
Not in normal use. Fenzly does not track your route continuously: it reacts to events. On some Android phones, Fenzly must be exempted from battery optimisation so that detection stays reliable in the background.
What happens with no network?
Place detection and trip recording carry on, on the phone. Your people receive the information when the connection returns, and a member with no connection for several hours is flagged on the map. Maps of the areas you have already viewed stay available; elsewhere, the map background is grey.
What if I change or lose my phone?
Sign in on the new phone: Fenzly restores your encrypted backup, places, circles and conversations included. Without a backup nothing can be recovered, since the server holds nothing readable. Turn it on from day one.
Is it a surveillance app?
No. Sharing is an individual choice, set circle by circle, and nobody enters a circle without consent. One exception, by design: in child mode, turned on with parental consent, a guardian can require sharing to stay on.
How do I delete my account and my data?
From the app or from this site, with a confirmation code. Deletion is immediate and permanent: account, keys and backups are erased.