Weight Diary
Track, understand, and keep going.
Three things Weight Diary does well: a weigh-in that takes seconds, charts that show your progress, and BMI that looks after itself.
Everything you need. Nothing you don’t.
Weight Diary gives you the essentials of weight tracking — simple, fast, and quietly on your side whether you’re losing, gaining or holding steady.
No guilt, no pressure
Track your weight without turning it into a daily obsession — no calorie counting, no food diary, no streak alarms.
Full weight history
Every weigh-in is kept. Scroll back through your whole weight history, revisit your notes, and see how far you've come.
A friendly companion
A soft animal companion greets you at every check-in — a small, warm reason to come back tomorrow.
Frequently asked questions
Is Weight Diary free?
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Yes. Logging your weight, progress charts, your full history, automatic BMI and your first animal companions are all free, and the free version is supported by ads. Premium is optional and removes them.
How long does a weigh-in take?
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A few seconds. Open the app, dial in the number and save — that is the whole job. A note or a different date are there when you want them, but nothing else is required.
Does Weight Diary calculate BMI automatically?
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Yes. Enter your height once and your body mass index is recalculated after every weigh-in, shown against the usual healthy range so you can see where you land without doing any maths.
Do I have to count calories or log my food?
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No. Weight Diary is a weight tracker, not a food diary. There is no calorie counting, no macros and no meal logging — just your weight, your progress and your BMI.
Can I set a goal weight?
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Yes. You can set a goal weight and track your progress toward it alongside your weight history and chart. Each weigh-in helps you see how far you’ve come and how much is left to reach your goal.
Is my weight data private?
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Your weigh-ins are stored on your device and there is no account to create. Like most free apps, Weight Diary collects standard app activity and device data for ads and crash reporting; Premium removes ads, and manual backup lets you keep your own copy of your history.
What does Premium add?
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More animal companions, multiple profiles so a partner or the whole family can each keep their own log on one device, manual backup, and no ads. You can buy it once or subscribe, whichever suits you.
Start your calmest check-in today.
Weight Diary