
You had one job, COCOA!
On 19 June, the Ministry of Health, Labor and Welfare released a contact tracing app called the COVID-19 Contact-Confirming Application or COCOA for short.
Its development was a bit fumbled, which shouldn’t be surprising given the Japanese government’s track record with all things tech, but in the end COCOA was a tidy app that managed to avoid the murky privacy issues of some other countries’ offerings.
Quite simply, any phone that your phone is within a meter of for over 15 minutes is given an anonymous ID and is logged on your phone. Then, if the owner of the phone with that ID chooses to report their COVID-19 infection on their app, your phone will buzz and, without naming names, tell you to go get checked out. If not, then the ID gets purged after two weeks.
▼ I can’t help having an irrational urge to push the forbidden “register a positive test result” button. It’s like having a big red button that says “DO NOT PUSH.”
It all sounded good, so I went and installed it. However, without fail, everyone I talked to since then did not. They only had a vague awareness that it existed, but after a few minutes of telling them how it worked, they installed it right away. I even talked to the vice principal of a high school who said there had been no effort at all to get students to use the app while in the close-quarters of their classrooms.
Considering that prior to the app’s release Prime Minister Abe said that about 60 percent of the population would need to use the app for it to be effective, this does not bode well.
Sure enough, it’s been reported that as of 8 July, about 6.1 million people downloaded the app. While that’s certainly a big number, it’s only about five percent of the population.
▼ This segment of a TV show does a pretty good job of explaining COCOA but even the caption in the upper right corner wonders if 60 percent is really possible
Worse yet, while a second wave of infections has been spiking, COCOA has been woefully underperforming. From the third to the seventh of this month, about 1,100 new cases have been reported but as of the eighth only three infections have been registered on the app, accounting for only 0.03 percent.
People online had many theories as to why this was.
“These kinds of apps rely on the mutual awareness of everyone. If you don’t have that, it’s useless.”
“They released it in between waves when concern about COVID-19 was at its lowest.”
“The people who actually downloaded the app are probably already very cautious and less likely to get infected.”
“I wonder how many people were notified by those three. I can’t think of anyone outside of my family that I spend 15 minutes within one meter of.”
“They should have made installing the app a condition of getting the 100,000 yen relief money.”
“About 85 percent of people in Japan use smartphones, and students aren’t allowed to bring them into class. So, this won’t work.”
“Well, I heard enough. I’ll be uninstalling mine now.”
This is one of the rare instances where I think all of the above comments are correct. There’s a lot of reasons why COCOA never really got off the ground, but from my experience it really seemed like there was just no clear guidance about it. A lot people thought it wasn’t meant for people like them, weren’t even sure how to get it, or had privacy concerns that didn’t really exist.
It feels a lot like the government knew this wasn’t going to work partway through, and just kind of gave up on making any sort of awareness raising campaign, instead cutting their losses at the reported 41 million yen (US$382,000) it cost to make the thing.
I only heard of it through news articles and never saw a single poster or TV ad explaining how to use COCOA let alone its mere existence. Considering the 60 percent target would require it to become one of the most used apps in the country, it was an amazingly lame effort, if any effort was made at all.
Despite all this, I’ll still keep my app on, since it’s really the least I can do to help. I just wish the government didn’t have the same attitude.
Source: NHK News Web, Smart Flash, Hachima Kiko
Photos ©SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!


Some of Japan’s COVID-19 contact tracing apps haven’t been working since last September
Don’t uninstall that Covid-tracking app yet, warns Japanese government
Japanese government is shutting down its COVID contract-tracing app
Young people in Tokyo to be offered points and discounts if they get vaccinated
Tokyo Government considers fining people who knowingly go out when infected with COVID-19
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
Häagen-Dazs Japan releases new ASMR ice cream called “Rocky Crunchy!”
Man in Japan falls into hole with a bear in it
Starbucks Japan opens new cafe and art gallery in top Tokyo tourist neighbourhood
Giant pipe mysteriously rises up through street in downtown Osaka
How to write “sakura” in Japanese (and why it’s written that way)
Starbucks Japan offers special sakura picnics at Reserve Roastery Tokyo beside Meguro River
Kagawa Prefecture becoming Slowpoke Paradise this spring
Pizza Hut Japan teams up with creator of one of the country’s best kinds of ramen for ramen pizza
Rolling suitcase with built-in desk is perfect for mobile businesspeople and cosplayers alike
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
Nine great places to see spring flowers in Japan, as chosen by travelers (with almost no sakura)
Japanese government planning higher ticket prices for foreign tourists at Tokyo National Museum
Starbucks Japan releases a new Cream Puff Frappuccino for a limited time
Silicone testicle covers banned from Japanese sauna following cups being left behind and on shelves
Studio Ghibli now sells Ursula’s backpack from Kiki’s Delivery Service at its anime shop in Japan
Is Japan’s Crab-shaped Cup Ramen Timer worth the hype?
Mister Donut unveils new sakura doughnuts for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Foreigners accounting for over 80 percent of off-course skiers needing rescue in Japan’s Hokkaido
Super-salty pizza sends six kids to the hospital in Japan, linguistics blamed
Starbucks Japan unveils new sakura Frappuccino for cherry blossom season 2026
Foreign tourists in Japan will get free Shinkansen tickets to promote regional tourism
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Take a trip to Japan’s Dododo Land, the most irritating place on Earth
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
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
Up to 300 people a day breaking Japanese quarantine rules, according to reports
COVID-19 appears to be suppressing the flu in Japan, number of cases down and decreasing
If you die from the COVID-19 vaccine in Japan, the government will give your family over 44M yen
Several McDonald’s branches closing across Japan due to COVID-19 infections
COVID-19 cases plummeting in Japan, doctors puzzled why
Travelers entering Japan will have to install location confirmation app, Skype on smartphones
74-year-old Japanese politician starts Instagram account for open dialog about COVID-19
Hot spring in Gunma Prefecture found to reduce COVID-19 infectivity by over 90 percent
Search is on for COVID-19 patient who escaped out a sixth-floor window of Osaka hotel
Toyama Prefectural University able to locate potential COVID-19 clusters from raw sewage
Why have no COVID-19 clusters occurred in pachinko parlors?
People who won’t wear masks have to dig graves for COVID-19 deaths in this Indonesian town
Kyoto University finds alpacas may hold the key to preventing all COVID-19 variants
Nara University study finds some common teas can neutralize COVID-19
The Internet reacts to Osaka governor’s comical COVID-19 countermeasure with stunned disbelief