---
title: "What is HiFi?"
url: https://support.hifiapp.com/en/articles/1-what-is-hifi
collection: "FAQs"
updated: 2026-10-29
language: en
---

# What is HiFi?

## What does HiFi do?

HiFi is a phone app that can answers calls for you, tells you what happened on each call, and blocks known spam and scam calls.  
  
With HiFi you can:

-   **Let HiFi answer calls.** HiFi picks up the calls you choose, such as calls from unknown numbers. It asks who’s calling and why, takes a message, and can pass the call to you. You can watch a call live and tap **Take over** to talk yourself.
    
-   **Read summaries and transcripts.** After a call, open **Call Details** to read a short **Call Summary** and the full transcript. HiFi also suggests calendar events and reminders it hears in the conversation.
    
-   **Block spam and scams.** HiFi automatically blocks calls from known spammers and scammers. During a call, it warns you about a possible scam call if it detects language or tactics often used by scammers.
    
-   **Send text messages.** With a **HiFi number**, you can send and receive texts, group messages, photos, videos, and files.
    
-   **Make and receive calls.** HiFi calls use the internet (Wi-Fi or mobile data). The people you call don’t need HiFi.
    

## Can I keep my phone number?

Yes. During setup, you choose one of two ways to use HiFi:

-   **Use my existing number.** Your carrier forwards calls from your current number to HiFi. Your number doesn’t change. Text messaging isn’t available with call forwarding alone.
    
-   **Get a new number.** HiFi gives you a separate **HiFi number** for calls and texts. Your personal number keeps working as it does today.
    

To compare the two options, read “Should I use my existing number or get a new one?”

## Related articles

-   “Set up HiFi”
    
-   “Choose which calls HiFi answers”
    
-   “How HiFi blocks spam and scam calls”
    
-   “Read a call summary and transcript”