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How TrueCal works with Apple Health

By Eric Parker, founder of TrueCal. Published . Updated .

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TrueCal Pro syncs with Apple Health on iPhone when you turn sync on. It reads weight and activity data and can save your logged nutrition to Health, subject to the access you grant.1

How to use it

  1. Open your profile in the TrueCal iPhone app and select Health.
  2. Turn on Health sync. Review the Health access requests and choose the permissions you want to grant.
  3. Tap Sync now to request a sync. Read the separate status lines for Weight, Activity and sleep, and Nutrition to Health.
  4. If a status says that Health access is needed, use Open Health to review access. Return to TrueCal and check the sync status again.
  5. Review your weight and activity in TrueCal and check the Nutrition to Health status for the export of logged nutrition.

Good to know

Weight, activity imports, and meal exports have separate status lines. A completed weight sync does not tell you whether every nutrient was exported. Check the line for the type of data you are interested in.1

Some nutrients need write access in Health. If TrueCal reports that access is missing, review the Health permissions rather than assuming all nutrition has been exported.1

Apple Health sync is an iPhone feature and requires Pro. TrueCal uses Health Connect on Android when sync is enabled there. These are separate platform connections.1

Questions and answers

Does TrueCal read and write the same information?

The Health screen describes reading weight and activity and saving logged nutrition to Health. Read and write permissions have different jobs. Check the status for each type of sync.1

Is Apple Health sync available on the free plan?

Health sync requires Pro. Free accounts can still record calories by hand and review daily and weekly views in TrueCal.1

Why should I check more than one status?

TrueCal shows separate progress for weight, activity and sleep, and nutrition export. One successful sync line does not establish that another type of data has finished syncing.1

Get TrueCal

Use TrueCal on iPhone or Android. Review the available plan and offer in the app.

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Sources

  1. Official TrueCal facts. TrueCal. 2026.