
Japanese telecommunications company SoftBank is seemingly never out of the news recently. In the past seven days, we’ve seen CEO Masayoshi Son put down a heckler on Twitter, offer his employees up to a month’s pay for mastering English, and now the company comes out with a genuinely wonderful free app for iOS in celebration of being Japan’s most popular telecommunications provider for five years running.
Officially titled 「ラップお父さん」 “Rappu Otousan” (lit. rap dad), the application is essentially a sound board filled with memorable lines uttered by members of SoftBank’s fictional White Family, as seen in commercials. As well as allowing users to annoy friends with one-liners like “Shut it!”, “What’s so funny!?” and even the company CEO’s famous “Let’s do it!” line, users can play and mix a variety of prerecorded rhythm tracks, making this app by far the most wonderful time-waster we’ve discovered so far this year.
Featuring cute hand-drawn buttons and even scratchable turntables, Rappu Otousan, allows anyone with access to an iOS device to create musical masterpieces by setting the ads’ character voices to background music, and even record and send their creations to friends.
Here’s a user-submitted video of the app in action:
Of course, the app’s only as good as users’ mixing skills allow, but it’s seriously addictive and we’ve already lost a combined three hours to this app since discovering it earlier today.
Let’s take a closer look at what’s on offer:
The app opens up with the familiar face of “Otou-san“, the head of the family.
From the main menu, selecting 「はじめる」 takes you to the “rap menu” where each of the buttons can be pushed, producing one of the famously short-tempered father’s lines from “Oi oi!” to “It’s too soon for you, sunshine!”
The 1, 2 and 3 buttons on the left of the screen give you access to other sound banks, including the family’s mild-mannered son’s one-liners. Useful lines like “I am/You are”, rap staple “yo” and the Japanese question marker “desu ka?” make it easy to put together little phrases of your own with surprisingly decent results. You, of course, can let the app do all the rapping work for you by pressing the 「おてほん」 example mode button. Hitting the “DJ モード” button, meanwhile, takes you to the mixing desk:
With two turntables to operate (A and B) and six tracks (Hip hop, funk and dance) to choose from, as well as backing tracks like guitar and piano, you can mix up a nice little beat for your family to rap over. The slider at the bottom of the desk, meanwhile, allows you to balance the volume of the two records. And don’t forget to scratch!
Finally, back at the sound bank screen, hit “Rec” and you’ll be able to record, save and send your creation to your phone or share it with friends.
Like any big company, SoftBank may not always get the best reviews from its customers, but we have to hand it the people behind this: they’ve got style. Much more of this kind of thing, please, Mr. Masayoshi!
We’ll leave you now with Otou-san and his son, played by American Dante Carver, out for a stroll in one of SoftBank’s more recent commercials. Happy rapping, kids!
「ラップお父さん」 is available now on Apple’s App Store and is completely free.
Source: マイナビニュース
Title image: SoftBank Corp. Other images: RocketNews24 App demonstration video Commercial video






Ramen restaurant in top Tokyo tourist neighborhood skips price gouging, but how does it taste?
7-Eleven Japan releases a crazy new viral sandwich: Chocolate Sprinkles and Whipped Cream
Krispy Kreme releases Super Mario doughnuts in Japan for a limited time
Godiva now makes tofu in Japan, and sakura chocolate tofu too![Taste test]
“Online streamer” tops dream job poll for young Japanese kids, older kids not so interested
Ramen restaurant in top Tokyo tourist neighborhood skips price gouging, but how does it taste?
7-Eleven Japan releases a crazy new viral sandwich: Chocolate Sprinkles and Whipped Cream
Krispy Kreme releases Super Mario doughnuts in Japan for a limited time
Godiva now makes tofu in Japan, and sakura chocolate tofu too![Taste test]
“Online streamer” tops dream job poll for young Japanese kids, older kids not so interested
Studio Ghibli releases the My Neighbour Totoro tea caddy, with a magical self-closing lid
Fake police phone scam also highlights dumb stereotype about how foreigners speak Japanese[Video]
Can you make butter by running with a pouch filled with cream? Let’s find out[Taste test]
Hey, Japanese taxi driver! Take us to the best sakura site in Yamanashi Prefecture!
Studio Ghibli adds folding fans to its anime specialty store in Japan
Japanese onsen egg maker from 100-yen store Daiso needs to be on your shopping list
Starbucks Japan releases new My Fruit³ Frappuccino at only 34 stores around the country
Tokyo government organizes food truck event to clear out delinquent/homeless teen gathering area
Cherry blossoms begin blooming in Japan with record-early starts for sakura season
Nine amazing off-the-beaten-path cherry blossom spots in Japan for yaezakura and shidarezakura
Stunning central Japan wisteria festival is like a purple fantasy straight out of a Ghibli movie
Create a tiny Ghibli anime world on your bookshelf with new miniature papercraft art kits
Japan now has a “for foreign tourists only” Mt. Fuji sightseeing train[Video]
When will the cherry blossoms reach full bloom in Japan this year?[Forecast]
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
Train station platform ramen store closes its doors on half a century of history in Tokyo
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
Nine great places to see spring flowers in Japan, as chosen by travelers (with almost no sakura)
Starbucks Japan releases first-ever Hinamatsuri Girls’ Day Frappuccino
Studio Ghibli adds new Mother’s Day gift sets to its anime collection in Japan
Virtual idol Hatsune Miku redesigned with look that adds new elements and brings back old ones
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Studio Ghibli releases the My Neighbour Totoro tea caddy, with a magical self-closing lid
Fake police phone scam also highlights dumb stereotype about how foreigners speak Japanese[Video]
Can you make butter by running with a pouch filled with cream? Let’s find out[Taste test]
Hey, Japanese taxi driver! Take us to the best sakura site in Yamanashi Prefecture!
Studio Ghibli adds folding fans to its anime specialty store in Japan
Japanese jeweler launches new engagement and wedding rings with Sanrio character Tuxedo Sam
A faster, easier way to make cake: Use a rice cooker【SoraKitchen】
Ghibli Museum building becomes a cuddly cushion
Japan’s cherry blossom season predicted to start earlier than we’d thought, especially in Tokyo
Muscly Japanese men fill stock photo site with hilarious poses in unusual settings
Häagen-Dazs Japan releases new ASMR ice cream called “Rocky Crunchy!”
Expo 2025 mascot Myaku-Myaku to release tastefully erotic photo book
Studio Ghibli unveils new Rollbahn notebook in honour of Howl’s Moving Castle