A simple way to keep track of your health
Write down your blood pressure, blood sugar and weight. Photograph your medicines instead of typing them. Not feeling well? See which clinic to go to.
Switch the language whenever you like. Useful if you live in Japan and the paperwork is not in your first language.
Your recorded blood pressure and medicines are taken into account when it suggests where to go. It does not identify illnesses.
No plan shows ads. Writing down your numbers and looking back over them stay unlimited on the free plan.
Text is large and buttons are easy to press. You can make the text larger still in the settings.
Three steps and you are set up. You can read what you are agreeing to in any of the three languages.
The four numbers you logged most recently, visible the moment you open the app.
Blood pressure, pulse, weight, temperature and blood sugar. You can also bring them in from Apple Health or Health Connect.
Describe what is bothering you and it suggests whether to see someone and which clinic. Reference information, not a diagnosis.
Photograph the packet or leaflet and it reads the medicine name, checking it against Japan's official medicine database (PMDA).
Everything you logged, in date order — something you can hand to your doctor at an appointment.
A QR code your doctor can scan to see your records. We are still building it.
Your details, your medicine list, who to call in an emergency, and reminders.
* Mairi is not a medical device. It does not find or treat illnesses — it helps you keep a record.
No plan shows ads. The free plan is free for good, and most people never need more. Choose Plus or Premium only if you want more uses.
Free for good, and no ads
¥0
If you use the symptom check often
¥480 / month
If you photograph medicines often
¥980 / month
¥9,800 / year (¥817 / mo)
Yes. Writing down your numbers and looking back at them are free for good, with no limit on how often.
Once a month. Plus allows 20 times a day and Premium 50 times a day.
Anytime — App Store > Subscriptions on iPhone, or Google Play > Subscriptions on Android. You keep access until the end of the period you have paid for.
No. It suggests whether to see someone and which clinic, and gives reference information about your symptoms. Identifying an illness and prescribing are for a doctor.
Only when you use the symptom check or photograph a medicine: the content is sent to the providers that process it (Google and Anthropic, in the United States). Your name and date of birth are not sent. Nothing is shared for any other purpose — see the privacy policy for the detail.
