CalLogカロログ
日本語 Get it free
v1.11Now you can cheer each other on with friends

Went over today? Log it anyway. She’ll cheer you on.

CalLog is a calorie tracker built around Japanese food — home cooking, convenience stores and eating out. Snap it or pick it, and Karo-chan cheers on your streak every single day.

Download on the App Store

Free to start7-day free trial on every CalLog Pro plan

  • No account needed
  • Data stays on your iPhone
  • 4,000+ foods, offline
CalLog home screen: a ring of calories left, macro bars and a line from Karo-chan (app UI in Japanese)

First log of the day! Here we go

From Haruka
“Nice logging!”Friends · just now
At this pacearound Dec 13you’ll reach 53.0 kg
牛丼 並盛すき家鮭おにぎり肉じゃが吉野家豆腐とわかめの味噌汁天ぷら盛り合わせ松屋ラーメン大盛り餃子マクドナルドサラダチキンのり弁当ほっともっとプロテインギリシャヨーグルト

Why it lasts

The number one reason people stop logging? The day they overeat, they don’t want to open the app. But that’s exactly the day the log matters most.

So Karo-chan reacts to the fact that you logged, not to how much you ate. Acknowledgement, not judgement — that’s her whole job.

A day with Karo-chan

Over your target tonight?
Karo-chan won’t scold you.

Scroll through one day. Every line Karo-chan says here is shown in the app — translated from the original Japanese.

  1. 7:48Breakfast

    One rice ball still counts.

    Foods you log often pop up as suggestions the moment you start typing. Pick one and the calories and protein fill themselves in.

    First log of the day! Here we go

  2. 12:31Lunch

    Just type “large ramen and gyoza”.

    CalLog splits it into items and works out calories and macros for each. You can adjust the numbers afterwards.

    That’s two today. You’re keeping it up!

  3. 15:20Snack

    Running low? No nagging.

    The ring moves from green to yellow to orange. Honest numbers, gentle words.

    You logged it — well done!

  4. 20:06Dinner

    375 kcal over target.

    In most apps, this is where the red numbers and warnings come out. Karo-chan isn’t looking at the amount — she’s looking at the fact that you still logged today.

    Logging the days you go over is what makes it stick

  5. 3days later

    Even after a few days away.

    No broken-streak guilt trip. She’s just glad you came back.

    Welcome back! Don’t worry about the days you missed
A word every time you logWhat she says changes with the meal and how many days you’ve kept going.
On your home screen, tooThe widget shows how today is going and how many calories are left.
A gentle reminderOn days you might forget, Karo-chan sends a notification at the time you choose.

Your plan

Your goal, with a date.

During setup, CalLog builds “your plan”. Try it here first — the maths is exactly the same as in the app.

Sex
Goal
Pace per week (kg)

YOUR GOAL

—

Daily target—kcal
Estimated daily burn—kcal

Let’s get there together

Download on the App Store

In the app, your own logs gradually
refine this into your real daily burn.

How it’s calculated: basal metabolic rate from the Mifflin-St Jeor equation, multiplied by an activity factor for your estimated daily burn, minus your chosen pace assuming 1 kg of body fat ≈ 7,200 kcal (minimum 1,200 kcal). Protein is body weight × 1.0 g, fat 25%, carbohydrate the remainder. These are estimates and do not replace medical advice. Nothing you enter leaves this page.

Six ways to log

Snap, pick, type, search.
Whatever suits the day.

Barcode when you’re in a hurry, quick entry when you forgot to take a photo. Having a choice is what makes it stick.

BarcodeFree
Scan a packaged product’s barcode and log it.
My MealsFree · 2
Save your usual breakfast for one-tap logging.
Photo scan result: tempura, rice, miso soup and pickles estimated item by item Quick entry: protein shake, salmon rice ball and salad chicken suggested from history Text entry: large ramen and gyoza calculated separately Searching the food database for Sukiya: gyudon listed by size

Built for Japanese food

4,000+ Japanese foods.
Searchable without a signal.

SukiyaYoshinoyaMatsuyaMcDonald’sHotto Motto
Every food in Japan’s Standard Tables of Food Composition (8th ed., 2023 supplement), published by MEXT.
Not just calories: protein, fat, carbohydrate, fibre and salt equivalent too.
Convenience-store items and new products not in the database can be looked up from each company’s published nutrition data. Pro · 10×/day
Sukiya gyudon listed by serving size: mini, regular, medium, large…
Friends tab: each friend’s entries today and streak Well done! Nice logging! Let’s do this together Good work today

Friends v1.11

Can’t keep it up alone?
Bring a friend.

Send an invite link and you’re connected. You can see whether each other has logged today and how long your streaks are — and send Karo-chan cheer stamps back and forth.

No rankings. No winners.It’s built for cheering each other on, not for comparing.
A gentle “nudge”Only for friends who haven’t logged yet, once a day.
You decide what’s sharedShow or hide today’s meal names any time. No email address needed.
Side by side on your home screenThe friends widget shows your day next to a friend’s.

Friends is completely free

Know your body

Stop riding the daily
ups and downs.

Body weight swings by around a kilo a day with water and food. CalLog smooths that into a “trend weight” with a weekly pace, and tells you roughly when you’ll reach your goal.

At this pace, around Dec 13
you’ll reach 53.0 kg

The values shown are an illustrative example.
Weight graph with a trend line over the daily entries

Trend weight and an arrival date

Set a goal weight and see roughly when you’ll get there at your current pace. Weights from a smart scale can be imported from Health, one per day.

Free
Estimated real energy expenditure of about 1,788 kcal per day and its trend

What you actually burn

A formula gives you the average for your build. CalLog works backwards from your own food and weight logs to estimate what your body really uses each day. A provisional estimate is shown free from day one.

Estimate is freeFrom your logs: Pro
Weekly check-in suggesting a change from 1,600 to 1,520 kcal

A target that adapts every week

As you lose weight, your body burns a little less. CalLog suggests a weekly adjustment to keep your target in step.

Pro

And more

Small things that keep you going.

RemindersA nudge from Karo-chan at the time you choose.Free
WidgetsCalories left, and a side-by-side with friends.Free
Streaks and badgesHitting your target, logging weight, health score 80+ streaks and more.Free
ReportsThe last 7 days free; up to 90 days with Pro.90 days: Pro
Health scoreEach day’s eating, out of 100. The breakdown and what to fix are Pro.Score is free
Meal review & tipsWhat you ate today, and what to try tomorrow. Up to 3×/day.Pro
Goal coursesBody composition (more protein) and low sodium (salt under 6 g).Pro
Apple HealthReads steps, active energy and weight. Never writes.Free

Pricing

The free plan
is a real plan.

Photo scan twice a day, barcode scanning and Friends are all free. When you want more, every CalLog Pro plan comes with a 7-day free trial.

Monthly

¥350/ month

Try it out

7 days free

6 months

¥1,680/ 6 mo

¥280 per month

7 days freeSave 20%
Best value

12 months

¥2,400/ year

¥200 per month

7 days freeSave ~43%

A free trial that won’t surprise you.

Here’s exactly what happens, and when.

  1. 1Day 1 — startEvery Pro feature unlocked. No charge.
  2. 7Day 7 — still ¥0Cancel at least 24 hours before the end and you won’t be charged.

Free, for good Free

  • Photo scan 2×/day
  • Quick entry with suggestions from your history
  • Food database search 4,000+
  • Barcode scanning
  • Friends and the friends widget
  • Trend weight and goal arrival date
  • Provisional daily-burn estimate
  • Health score, widgets, reminders
  • 2 My Meals; last 7 days of reports and weight

More with CalLog Pro Pro

  • Unlimited photo scans
  • Calculate from free text
  • Web lookup for restaurant, convenience-store and missing items 10×/day
  • Real daily burn calculated from your logs
  • Weekly target check-ins
  • Meal review and tips 3×/day
  • Health score breakdown
  • Goal courses (body composition / low sodium)
  • Unlimited My Meals, 90-day reports, custom weight ranges
Download on the App Store

Prices include tax (Japan App Store). Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. Cancel any time in Settings on your device.

Privacy & care

Your records stay
on your iPhone.

0

Accounts to createNo email, no name. Install it and start logging.

On-device

Where your data livesMeals, weight, goal weight and photos stay on your iPhone. Only if you use Friends is a summary of your day kept on our server.

11updates

Since launchImproving steadily since August 2026. Every message sent through “Send feedback” in the app is read by the developer.

24hours

Report responseRun into trouble in Friends? Report it in the app — reports are reviewed within 24 hours.

FAQ

Frequently asked questions

Is the app in English?

Not yet — the app’s interface is in Japanese, and the food database covers food sold in Japan. It works best if you read some Japanese and eat in Japan.

Can I use it for free?

Yes. Photo scan (twice a day), quick entry with suggestions, database search, barcode scanning, Friends, trend weight and arrival date, the provisional daily-burn estimate, health score, widgets, reminders, streaks and badges are all free. You can save 2 My Meals and see the last 7 days of reports and weight.

Is there a free trial of CalLog Pro?

Every plan (monthly, 6 months, 12 months) includes a 7-day free trial. Cancel at least 24 hours before the end and you won’t be charged — from Settings → your name → Subscriptions.

What do friends see?

Your nickname and a summary of today (whether you logged, number of entries, calories vs target, streak, and meal names). Meal names can be hidden in settings. Weight, photos and past records are never sent. You can unfriend, block and report, and “Stop using Friends” deletes your data from the server.

Do I need an account?

No. Meals, weight and photos are stored on your iPhone. Some features, such as calculating from a photo or text, send that content via our server for the estimate, but it is not stored. Height, age and sex are never sent.

Does it work with Apple Health?

Yes. CalLog reads steps, active energy and weight. You can add exercise to your daily target, and import one weight a day (days you entered in CalLog are never overwritten). It never writes to Health.

Is there an Android version?

Not at the moment — iPhone only (iOS 17 or later).

Start with
today’s first log.

One rice ball, one photo — it all counts. From the day you start, Karo-chan is on your side.

Download on the App Store Free to start · iPhone, iOS 17+
7-day free trial on every CalLog Pro plan
Karo-chan cheering with a raised fist