---
title: "Yo App: Have You Sent a “Yo” Today?"
locale: "en"
language: "en-HK"
published: "2014-06-26T07:40:23.000Z"
updated: "2026-03-19T20:32:02.709Z"
canonical: "https://accordhk.com/blog/yo-app-have-you-sent-a-yo-today-336"
---

# Yo App: Have You Sent a “Yo” Today?

Yo does just one thing: sends “Yo” to someone. Yet it attracted 20,000 users in a month and US$1.2 million in investment, despite taking just eight hours to create. Its success shows how a simple, convenient app can meet users’ needs.

## In brief

A successful app can be simple: Yo’s single messaging function attracted 20,000 users in one month and US$1.2 million in investment, according to this June 2014 article. Built in just eight hours, it illustrates the value of convenience and meeting users’ needs.

Could a “simple—and silly” mobile app called “YO” really become a hit so quickly?! In just one month, Yo attracted 20,000 users.

Yo is an app that could hardly be simpler. It has just one function: sending “Yo” to let someone know “I want to get in touch with you” or “I’m thinking of you.”

Yo may be silly, but it is still a successful app. It even attracted US$1.2 million in investment! And this million-dollar mobile app was created in just eight hours, showing that good apps can be built in a short time.

This app is a true oddity in the app market. Its success shows us that a successful mobile app can be extremely simple. It does not need complex features; simplicity, convenience and meeting users’ needs are enough.

Finally, if Yo let users send “Yo” in their own voices, surely they would go wild for it!

[![YoApp(2)](<https://www.accordhk.com/blog/wp-content/uploads/2014/06/YoApp21-180x300.png>)![YoApp](<https://www.accordhk.com/blog/wp-content/uploads/2014/06/YoApp1-180x300.png>)](<https://www.accordhk.com/blog/wp-content/uploads/2014/06/YoApp21.png>)

 

More about how Yo was created: http://www.hksilicon.com/kb/articles/511467/Yo

## Frequently asked questions

### What does the Yo app do?

Yo has just one function: sending “Yo” to another person. It lets the recipient know that you want to get in touch or are thinking of them.

### How many users did Yo attract in its first month?

The June 2014 article reports that Yo attracted 20,000 users in one month.

### How long did Yo take to build, and how much investment did it attract?

According to the article, Yo was created in just eight hours and attracted US$1.2 million in investment.

### What lesson does Yo offer about building a successful app?

The article argues that a successful app does not need complex features. Simplicity, convenience and meeting users’ needs can be enough.

### Could users send a “Yo” in their own voices?

The article presents this as a suggested possibility, expressing enthusiasm for how users might respond if the feature were available.