1 · To start

No phone number, no email

Pick a username and password. That's all. Your name can be made up.

2 · To start

Connect with a link or QR code

Share your link or show your QR code to anyone you want to connect with. Each code is for one person.

3 · Your messages

Direct conversation

Your messages travel from your device to your contact's, never stored along the way. The app tells you if the connection is direct (P2P) or through the mirror.

4 · Your messages

Files and photos

Photos, videos, documents. The only limit is your device, not us. If a transfer drops, it resumes automatically, and every file is verified to arrive intact.

With the + button you pick file, gallery, GIF, voice, photo, or video, scan a document with your camera, or send your location. When sending a PDF, the app asks if you want to remove the author and date stored in the document first.

5 · Your messages

Link previews

When you send a link, it can travel with a card showing the page's image, title, and description. It's optional: the first time we ask if you want it, and later you can toggle it in the main menu.

To build the preview card, our server reads the page, but never saves or logs the link, and whoever receives the message never contacts that site.

6 · Your messages

Copy text from a PDF

Open a PDF and tap «Copy text»: copy all pages at once. The file never leaves your device.

With photos and scanned PDFs, text recognition also happens on your own device, across some 30 European languages. Each language is downloaded only when requested and removable from My data.

7 · Your messages

My notes

A chat with yourself to save notes, links, and files. It's created the first time you use it, sent to no one, and syncs with your other devices.

If you don't want to see it, hide it with the notebook icon.

8 · Your messages

Calls and video calls

Direct voice and video calls between both devices, encrypted end-to-end.

From the conversation menu, choose Call or Video call; the other side rings and decides whether to pick up.

9 · Your control

Disappearing messages

Turn on a timer in the conversation (5 minutes, 15 minutes, 1 hour). When it runs out, the message vanishes from the device.

Each message shows its countdown.

10 · Your control

Special touches

A kiss, a hug, confetti, or fireworks: a touch that reaches the other device instantly. You decide whether to allow touches in each conversation.

11 · Your control

Find any message

Search inside any conversation. The search runs on your device, right where your messages live.

12 · Your control

Colors to organize your conversations

Mark each conversation with a color and give each color a label: Family, Friends, Work… Then filter your list with a tap on the name.

Only you see it, also across your other devices; your contacts never see your labels.

13 · Trust

Secure connection, in plain sight

See how every conversation is protected: direct connection, ChaCha20-Poly1305 encryption, forward secrecy, and safety numbers you can verify with your contact outside the app.

14 · Trust

Your data, on your device

Everything is kept encrypted on your device, under My data. Export an encrypted backup or a readable copy whenever you want; you control the backup.

15 · For everyone

Your app, your way

Choose from ten themes in the bottom-left menu: Solo, Dark, Indigo, Blue, Green, Purple, Rose, Amber, Light, and High contrast.

16 · For everyone

In your language

Solo2 speaks 42 languages: pick yours from the menu.