How Nutrola decides your current weight when a scale and the app disagree

When your smart scale and your in-app weigh-in show different weights, Nutrola uses the most recent measurement by date. Apple Health readings (like a smart scale sample) are imported into the same weight history as your manual weigh-ins, each keeping its real measurement date, so the newest reading becomes your current weight no matter which source it came from.

Which weight does Nutrola actually use?

Nutrola keeps one weight history that holds both your in-app weigh-ins and the samples it pulls from Apple Health. When it picks your "current" weight, it simply takes the newest entry by date across that combined history. So:

• If your smart scale logged a reading to Apple Health more recently than your last manual weigh-in, the scale reading wins.
• If you typed a weigh-in into Nutrola more recently than your scale synced, your in-app entry wins.

There is no averaging and no "source priority." The freshest measurement is the one Nutrola shows.

Why both sources live in the same history

When Nutrola imports a weight sample from Apple Health, it saves it with the date the measurement was actually taken, alongside your manual weigh-ins. Because each row carries its true measurement date, "newest row" naturally gives the right answer regardless of whether the latest number came from your scale or from you. This is the same way Apple Health itself resolves a latest sample. Your current weight is then used to refresh values like your BMI.

What happens if both readings are from the same day?

Imports are deduplicated by calendar day and value. If Apple Health offers a reading for a day where Nutrola already has a weight within about 0.1 of it, Nutrola treats it as the same reading and does not add a duplicate. This also prevents an echo: when Nutrola adopts a value, it can write that value back, and the matching same-day entry is skipped on the next sync so nothing gets double-counted. If two same-day readings genuinely differ, both are kept and the more recent one is used as current.

I synced and the weight still looks wrong

A few things to check:

• Make sure Apple Health is connected. In Nutrola, go to Profile/Settings → Health & Devices and confirm Apple Health shows as connected. Nutrola only pulls scale readings when this is on. Sync with Apple Health (iOS)
• Confirm the reading reached Apple Health. Smart-scale weights flow into Nutrola through Apple Health, so if the number isn't in Apple Health yet, Nutrola can't see it. Permissions for which categories Nutrola reads are covered separately. Exactly what data Nutrola reads from and writes to Apple Health
• Give the sync a moment. Nutrola checks Apple Health when the app is opened or relevant screens come into focus, so opening the app again can pull the newest reading. When Apple Health sync happens (and why nothing imports during onboarding)
• Add a manual weigh-in if you want a specific value to be current. Logging a weigh-in now makes it the newest entry. Open the center + in the tab bar, choose Log Weight, and enter your weight. How do I record a weigh-in and view my weight history in Nutrola?

Does this apply on Android?

The same most-recent-by-date rule applies on Android, where Nutrola reads from Google Health Connect instead of Apple Health. Apple Health is iOS-only. Health sync on Android (Google Health Connect)

Body-fat percentage from a connected scale is handled the same way: the newest reading by date becomes your current body fat. Tracking body fat percentage

Still need help? In the app, open Profile/Settings → Support & Legal → Contact us to chat with our support assistant, or email us at support@nutrola.app.