👉 Jump to a section using the table of contents below:
Data sync overview
Apple Health to Yazio:
- Activities and workouts
- Body weight
- Waist circumference
- Blood sugar
Yazio to Apple Health:
- Activities and workouts
- Body values (various)
- Macro and micronutrients
Connection requirements
To use Yazio with your Health App effectively, please ensure the following:
- Operating System iOS 16 or higher.
- Yazio Version 7.2.0 or higher.
- In iPhone settings, under Settings > Apps > Health > Data Access & Devices > Yazio, enable all read and write permissions, particularly for active energy.
Syncing process
Yazio accurately transfers your active calories to Apple Health. The data is compared with all stored entries, including data from other third-party providers. Yazio uses the active calories calculated by Apple Health to avoid duplication and ensure correct activity data.
Here is a quick example:
Apple Health records activity energy from 1 PM to 2 PM. Yazio records activity energy from 1 PM to 1:15 PM and transfers this value to Apple Health. Apple Health recognizes that there are two values for the period 1 PM to 1:15 PM and subtracts them.
Step Card & Flame Values Explained
- Step Card: The number you see represents steps as calculated by Yazio.
- Flame Icon: This appears when you connect Yazio to Apple Health or a third-party provider and shows your synchronized activity energy.
If you only enter your steps manually or do not use other apps to record steps, the value under the flame always corresponds to the value in the step card.
However, these values may differ if you have several devices (e.g., your Apple Watch) or other apps connected to Apple Health and transfer these steps. Please see our instructions for Case 2 and Case 3.
Case 1: iPhone only + Yazio connected to Apple Health
👉 The following information only applies if you do not use an Apple Watch or other fitness apps. If you do, please read Case 2 and Case 3.
Yazio transfers self-calculated active calories to Apple Health. The data is compared with all stored entries, and overlapping data is deducted. The result is transferred back to Yazio and displayed as a flame.
The active calories shown in Yazio are identical to the value in Apple Health.
You can choose whether the Yazio value or the Apple Health value is used for overlapping periods by prioritizing data in Apple Health under: Browse > Activity > Active Energy > Data Sources & Access > Edit.
Case 2: Yazio + Apple Watch
Both the Apple Watch and your iPhone may record steps. By default, Apple Health prioritizes the Apple Watch.
You can adjust prioritization under: Browse > Activity > Active Energy > Data Sources & Access.
Case 3: Yazio + Apple Health + another tracker
When using additional fitness apps or pedometers, data may be recorded simultaneously.
To avoid errors, go to: Browse > Activity > Active Energy > Data Sources & Access.
There are two scenarios:
The additional tracker writes data for the entire day as one entry (timestamp 23:59).
- Enable activity energy transfer either for the fitness tracker or Yazio (not both). Adjust this in Settings > Apps > Health > Data Access & Devices.
- Ensure reading permissions remain enabled.
The tracker writes data with exact timestamps (e.g., 12:09).
- Adjust prioritization under: Browse > Activity > Active Energy > Data Sources & Access > Edit.
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Please prioritize Yazio lower than the other trackers for more accurate results.
We hope this article was helpful and wish you lots of joy with Yazio 💚 If you still have questions, Max is always happy to help in the chat 💬