Support and answers

Callixy is an app for voice and video calls, screen sharing, chat and voice or video messages. It works phone to phone, phone to laptop and laptop to laptop: on Android phones, on iPhone and iPad, and in the browser of any laptop or desktop.

It is built for networks that make calling hard: slow mobile data, unstable Wi-Fi and filtered connections. When the network gets worse, Callixy lowers the bitrate, changes the route and repairs the connection by itself, so the call goes on.

No. Callixy is free, with no ads and no in-app purchases. Your mobile operator or internet provider may charge for the data you use. History shows how much data each call used.

No. Callixy calls other Callixy lines only, so both of you need a line. It cannot call landlines or mobile numbers outside Callixy, and it cannot call emergency services.

No. You join with an invite code from someone on Callixy, then choose your number and a password; the number is your username. Many people use their mobile number so friends remember it, but any free number of 6 to 15 digits works. Callixy sends no SMS codes and asks for no email address. You must be at least 13 years old and meet the age and consent requirements in your country or territory.

Android app: allow notifications and full-screen calls when Callixy asks. Some phones stop apps in the background to save battery, often Xiaomi, Huawei, OPPO, vivo and Samsung. Open the battery settings of the phone and allow Callixy to run in the background.

Laptop or desktop: an open Callixy tab always rings. Allow notifications so a call also reaches you when the tab is closed; the browser itself must be running.

iPhone and iPad: add Callixy to the Home Screen from Safari (iOS 16.4 or later), open it from there and allow notifications. A call then arrives as a notification.

A line is signed in on one device at a time. When you sign in on another device, the line moves there and the first device is signed out. Your history, contacts and chats come with you.

No. A Callixy call is between two lines. Keeping calls one to one is part of what lets them survive a weak network.

No. Calls are never recorded. Only the voice and video messages you choose to leave are kept, for 30 days, and only the person you sent them to can play them.

The other person sees a missed call in History and gets a notification. You can leave a voice or video message of up to two minutes, or skip it.

It watches whether your voice still arrives and acts in steps: it lowers the bitrate (eight steps from 12 to 96 kbps), moves the call to an encrypted relay on port 443 when the direct route is blocked, repairs the connection, carries the audio another way, and as a last step switches to a backup server. A call is given up only after three minutes with no audio on any route.

More about the five steps.

• Keep voice quality on Auto, or open ··· during the call and move the slider down to Rescue.
• Turn video off. It frees the most room for the voice.
• Try the other connection: mobile data is sometimes steadier than a busy Wi-Fi, and the other way round.

Run the network check. It shows which routes your network lets through. Then try another network if you can, and make sure both of you are signed in and online. If nothing helps, write to us with what the check showed.

No. Callixy is built to find its own way through filtered networks. It usually works with a VPN too, but a VPN adds delay; if the voice arrives late or breaks up, try once without it.

• Android: the Callixy app, on Android 8 or later, or Chrome on Android.
• Laptops and desktops: Chrome, Edge, Firefox or Safari on Windows, macOS, Linux and ChromeOS. No installation is needed; Chrome and Edge can install Callixy as an app.
• iPhone and iPad: Safari, added to the Home Screen for notifications (iOS 16.4 or later).

Every line can call every other line, whatever device each side uses.

Not in the App Store. On iPhone and iPad, Callixy runs in Safari. Add it to the Home Screen and it opens like an app, with its own icon and notifications.

From the Android app, yes. Desktop browsers can share a screen, a window or a tab. Phone browsers and iPhone cannot share a screen, but they can see a screen that someone shares with them.

On the sign-in page tap Forgot password? and type your number. If your line is still signed in on another device, Callixy sends a link to its Chat (from Callixy Support); open it there and choose a new password. No other device? Type the recovery code you were shown when you joined (it is also in your Safe box in Chat) and a new password. On a device where you are signed in, Me → Password and recovery changes the password without the old one. If none of this works, write to us with the form below, choose I cannot sign in, or want a line deleted and give the line number; before we send a link we ask for details that only the owner of the line knows.

After several wrong passwords, Callixy pauses sign-in for 15 minutes to protect the line from guessing. Wait, then sign in with the right password.

No, the number is the line. Create a new line with the new number, tell the people you talk to, and delete the old line if you no longer need it.

In Profile, choose Delete my line and confirm with your password. You can also do it from any browser. See Delete your line for the steps and for what is deleted.

Anyone signed in to Callixy who types your number sees that it is a Callixy line, the name you chose and whether you are online or busy. Your photo is shown only during a call with you and in the History of people you talked to, and Hide my photo from others in Profile hides it from everyone. The names you give your contacts are visible only to you.

Calls are encrypted on the way between the two devices, and relays only pass encrypted packets along. Chats and messages are encrypted on the way to the server and are kept on the server, so they can reach you when you come back online. They are not end-to-end encrypted. The Privacy Policy explains what is kept, where and for how long.

Block the line: it can then no longer call you, chat with you or leave you messages, and it is not told. Report the line or a single message from the chat or from History: the report reaches the Callixy team with the message, and the other person is not told who reported them. How to block or report.

Callixy is for people aged 13 and over who meet the age and consent requirements in their country or territory. We do not tolerate the abuse or exploitation of children; see our child safety standards.