Your weight and your doses on one line
The problem
The question is never just "what do I weigh". It is what the last few weeks have looked like, and what was happening in them, which dose, which week, what else you logged.
What Dozify does
A trend, not a number
Your weight over three months, six, or a year, with the rate it has been moving and how far it is from your goal.
Apple Health does the typing
On iPhone, weight is read from Health automatically. If your scale writes there, you do not enter anything by hand.
No projection dressed up as a promise
The app shows what your own entries have done. It does not tell you what your body will do next.

Who this helps
People who want the shape of a few months rather than this morning's number, and people whose weight is already going into Apple Health from a scale. It is also for anyone who has been asked at an appointment how the weight has moved since the last dose change and has had to guess.
Where it stops
The projection is arithmetic on the entries you have made: it extends what your own numbers have done and nothing more. It is not a prediction of what your body will do, it does not account for a dose change, an illness or a holiday, and it is not a target anyone has set for you. Dozify does not recommend a weight, a rate of loss or a diet.
Private by default
Your health records stay on your device and are never uploaded. There is no account and no cloud sync. Usage statistics never carry a medication name or a symptom, details in the privacy policy.
Questions
Does it read my weight from Apple Health?
On iPhone, yes. If your scale or another app writes weight to Health, Dozify reads it and you do not type anything. You can also enter it by hand.
Kilograms or pounds?
Either. The unit is a setting and changing it converts what is already there rather than reinterpreting the numbers.
Does the projection tell me when I will reach my goal?
It tells you when you would reach it if the trend in your own entries continued unchanged. Bodies do not work like that, and the app says so on the screen rather than presenting the date as a plan.
Can I log measurements as well?
Yes, waist, hip and the rest, on the same timeline as weight, for the months where the scale moves less than the tape does.
Does my weight leave the phone?
No. It is stored on the device like the rest of your records. Reading from Apple Health happens on the phone; nothing is uploaded.
Read next
Guides, with their sources named: what GLP-1 actually is, managing common side effects, how to inject a pen, step by step, how to read a trend when the scale has stalled and when the tape moves and the scale does not.
Elsewhere in Dozify: the doctor report and the shot tracker.