Message anyone nearby. No internet needed.
A private messenger for the people right around you. End-to-end encrypted, device to device. No account, no message servers.
As featured in
- Krone
- derStandard
- oe24
- brutkasten
- Trending Topics
- iphone-ticker.de
How it works
Your phone talks to the phones around it.
Messages travel directly between nearby devices over Bluetooth and Wi-Fi, end-to-end encrypted, so they keep working when the network is down or overloaded.
See who’s around.
Radar lists people nearby who have Whispyr open. Your phones set up an encrypted session directly, with no server in between, and you can start a chat with one tap.
- No internet neededWorks on a plane, in a basement lecture hall or at a festival where the network gives up.
- Close, Nearby, FarSignal strength tells you roughly how close someone is.
A room for the place you’re in.
Create a Space for a campus, a venue or an event and share its code or QR code. People nearby join and talk together, and Events keep time-boxed conversations inside a Space.
You decide who sees you.
No phone number, no email, no account. Pick a name, choose whether you are Public, Private or Hidden on Radar, and change it whenever you like.
- Temp messagesShort-lived messages that disappear, so chats don’t fill up with old context.
- Safety numbersCompare a short code in person to confirm you are talking to the right person.
Devices
On iPhone, iPad and Mac.
The same Whispyr on iPhone and iPad, and on Mac computers with Apple silicon. Chats don’t sync between your devices; each one keeps its own.
Privacy
Private by design. Offline by default.
- Encrypted
- Direct chats are end-to-end encrypted on your device, with per-session forward secrecy. Not even Whispyr can read them.
- Offline
- No internet, no cell signal, no problem. Whispyr connects nearby devices directly over Bluetooth and Wi-Fi.
- No sign-up
- No phone number, no email, no account. Just a name you choose, and a photo if you like.
- Local
- Built for the people right around you: campuses, venues, events, meet-ups. Open Radar to see who is nearby.
- On your device
- Messages, contacts and keys are stored on your device. No Whispyr cloud, no message server, no key escrow.
- Standard cryptography
- Built on X25519, Ed25519, ChaCha20-Poly1305 and AES-GCM via Apple CryptoKit. No backdoors. Not yet independently audited.
Press
In the press.
Hit at Harvard: Viennese man (21) builds offline messenger
By Dominik Erlinger
Whispyr: Austrian messenger aims to make offline chats more beautiful
By Georg Pichler
- oe24.atViennese man builds offline WhatsApp alternativeoe24 staff16 June 2026
- vienna.atViennese man builds WhatsApp alternative without internetvienna.at staff, also on vol.at16 June 2026
- itopnews.deOffline messenger Whispyr: app innovation from HarvardBy Lukas Hermann28 May 2026
- ad-hoc-news.deWhispyr: New messenger without internet launches today on the App StoreVia boerse-global.de27 May 2026
- appgefahren.deWhispyr: Offline messenger uses Apple’s Multipeer Connectivity for local communicationBy Mel27 May 2026
- brutkasten.comSolo founder from Vienna develops messenger app: first success at HarvardBy Hannah Fasching19 May 2026
- trendingtopics.euWhispyr: Viennese solo founder builds offline messenger that is becoming a hit at HarvardBy Jakob Steinschaden12 May 2026
- iphone-ticker.deWhispyr: Free offline messenger transmits without accounts or networkBy Nicolas8 May 2026
Coverage in Austrian and German media. Headlines translated to English. For press enquiries, write to press@getwhispyr.app.
FAQ
Questions and answers.
Quick answers about how Whispyr works. For anything else, write to support@getwhispyr.app.
Basics
What is Whispyr, in one sentence?
A private messenger for the people right around you that works without internet, an account or message servers.
Do I need a phone number?
No. You just pick a name on your device. No phone number, no email.
How does nearby discovery work?
Open Radar. Devices physically close to you that run Whispyr appear in the list. Tap one to start a chat. If you set yourself to Hidden, you stay off other people’s Radar.
Does it work without internet?
Yes. Whispyr runs on Bluetooth and Wi-Fi between nearby phones. No data connection needed.
Features
What’s the difference between Chats, Spaces and Events?
Chats are one-on-one conversations. Spaces are local hubs for a place: a campus, a venue, a workplace. Events are time-boxed conversations inside a Space.
What are Temp messages?
Short-lived messages designed to disappear, so chats don’t fill up with old context.
Can I create a Space for my campus or venue?
Yes. Create a Space and share its code or QR code with the people around you.
Privacy
Where are my messages stored?
On your device. Whispyr has no message server and cannot read your messages. Photos and files you receive can be part of your own iCloud or computer backup of the device.
Can I move Whispyr to a new device?
Yes. Export your profile and chats to an encrypted file with a passphrase you choose, then restore it on the new device. Your new device gets fresh encryption keys. The file never passes through a Whispyr server.
Is Whispyr free?
Yes. Whispyr is free on the App Store for iPhone, iPad and Mac.
Will Whispyr replace my main messenger?
No. Whispyr is a specialised tool for nearby moments. Use it alongside your main app, not instead of it.
Talk to the people around you.
Whispyr is free on the App Store for iPhone, iPad and Mac.