
Maimai
Calorie counting with Vietnamese food, plus water, sleep, weight and cycle tracking
MaiMai is a personal nutrition and wellness diary for Vietnamese people. Look up calories in over 10,000 foods and ingredients with figures from Japan's Standard Tables of Food Composition (MEXT, 8th edition, 2023 supplement) and USDA FoodData Central, including familiar Vietnamese dishes such as pho, bun, rice dishes and banh mi, or scan the barcode of a packaged product. Log breakfast, lunch, dinner and snacks, and see the day's protein, fat, carbohydrate, fibre and salt. The app works out a calorie target from your height, weight, age, activity level and goal (lose, keep or gain weight), and tracks BMI on the Asian scale with a daily weight chart. Log water with one tap, record your sleep, and log your period with symptoms and mood, with food tips for each phase. Mai, your companion, cheers you on in one of 3 styles. Available in Vietnamese, Japanese and English; no account needed.
MaiMai is not a medical device. Calories, cycle and ovulation dates are estimates for reference only, not for diagnosis, treatment or contraception. Ask a doctor or dietitian when you need advice.
Who it is for
Vietnamese people, especially in Japan, who want to track food, weight, water, sleep and their cycle using familiar dishes.
Key features
- Calories for over 10,000 foods and ingredients (MEXT and USDA data), including Vietnamese dishes such as pho, bun and banh mi
- Log 4 meals a day; see protein, fat, carbohydrate, fibre and salt; add your own foods and favourites
- Calorie target from height, weight, age, activity level and a lose, keep or gain goal
- Barcode scanning for packaged products
- BMI on the Asian scale and a daily weight chart
- One-tap water log, sleep log and gentle reminders during the day
- Cycle tracking: dates, symptoms and mood; next-period estimate and food tips for each phase
- Mai the companion, in 3 styles: warm, nutrition expert or energetic friend
- No account; on iPhone data stays on the device, with backup export, restore and delete-all
- Vietnamese, Japanese and English interface
How to start
- Read this page to understand what the product is, who it is for, and the main features.
- Open the ViMai product site when you are ready to try it.
- Open the product site, then follow Install the app to add it to your Home Screen.
Download
Or install the Web App now
iPhone/iPad (Safari)
1.Tap the Share icon at the bottom of Safari→2.Choose Add to Home Screen.
Android (Chrome)
1.Tap the menu icon at the top right→2.Choose Add to Home screen.
3.Open the app from the new home screen icon, try it free, then buy VIP with VietQR inside the app.
Buy VIP only after opening the app from the home screen icon. If you change phones, use the recovery code shown in the app.
The ViMai ecosystem
More ViMai apps for people living, studying and working in Japan.
ViMai Tokutei TaxiTokutei Ginou (SSW i) automobile transport test practice, taxi category: 20 CBT mock exams, 1,000 questions
ViMai Tokutei Transport: Truck DriverTokutei Ginou (SSW i) automobile transport test practice, truck category: 20 CBT mock exams, 1,000 questions
ViMai Seibishi 3kyuClass 3 automobile mechanic (3級自動車整備士) written exam practice: 60 papers, 1,800 questions, 3 subjects
ViMai KidsA learning app for ages 3–7: Vietnamese letters, hiragana, katakana, maths, thinking and 14 games
ViMai Menkyo: Japan LicenseJapanese driving theory: lessons and mock tests for Karimen, Honmen and licence conversion – 60 exams, about 2,350 questions
ViMai Gino 1 Seibi: Automobile MaintenanceTokutei Ginou (SSW i) automobile maintenance test practice: 20 mock exams in the JASPA sample format, 780 questions
ViCare: See a Doctor in JapanA free app for Vietnamese people seeing a doctor in Japan: visit interpreter, health records, camera reading of papers and medicine bags
ViMai Tokutei Kaigo: Care Worker Exam PracticeTokutei Ginou (SSW i) care worker (介護) test practice: 20 skills tests, 30 Japanese tests, 1,350 questions
ViBJT: BJT Business Japanese Test PracticeFree practice for the BJT Business Japanese Proficiency Test: 10 mock tests (800 questions) and 4,400 business vocabulary and keigo cards
ViJPT: JPT Japanese Test PracticeFree practice for the JPT Japanese Proficiency Test: 15 mock tests of 200 questions, about 8,800 study cards and a 10–990 score estimate
