No, Signal does not exclusively need WiFi. It requires a data connection, which can be either mobile data or WiFi.
How Signal Connects
According to information from Signal support, after you complete the initial registration using an SMS or call, Signal uses either a mobile data or WiFi connection to function. This means that while WiFi is a valid way to connect and use Signal, it is not the only method. If you have an active mobile data plan, Signal can use that connection to send and receive messages and make calls.
Here's a simple breakdown:
- Required for Registration: SMS or Call (initial step)
- Required for Functioning:
- Mobile Data OR
- WiFi
Data Usage
While Signal itself does not charge you for using its service, the data used for sending messages, making calls, or transferring files will consume data from your internet plan.
- If you are using mobile data, your carrier may charge you based on your data plan.
- If you are using WiFi, you typically won't incur additional data costs, assuming the WiFi network is free or you are already paying for the internet access (like at home).
It is important to be aware of your data plan limits if you primarily use Signal over mobile data, especially for calls or sharing large files.
Connectivity Options
Signal is designed to be flexible, allowing you to stay connected using the most convenient data connection available to you.
| Connection Type | Required for Signal? | Potential Cost Consideration | Typical Availability |
|---|---|---|---|
| WiFi | No (alternative) | Usually low/included | Homes, offices, public hotspots |
| Mobile Data | No (alternative) | Depends on carrier plan | Widely available outdoors/on-the-go |
In summary, Signal needs an active internet connection to operate, and that connection can be provided by either WiFi or your mobile data plan. You do not need to be on WiFi specifically to use Signal.
