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How to use TrueCal on Apple Watch

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

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The TrueCal Apple Watch app lets you log a meal by voice with Pro. It also shows today's calories, protein, carbs, and fat against your targets.1

How to use it

  1. Open TrueCal on your iPhone and sign in to your account. Open the TrueCal app on your Apple Watch.
  2. Tap Log by voice on the watch, then tap Record.
  3. Allow microphone access if asked. Describe what you ate and the amount. A watch recording can last up to 15 seconds.
  4. Let the recording reach its time limit to stop and send automatically, or use the stop control when you finish speaking.
  5. Wait for the watch response. Open TrueCal on your phone to review the saved foods and portions after the meal finishes processing.

Good to know

The watch shows Sent after a successful submission and says the meal will be logged shortly. A sent recording can still be waiting for processing. Check the saved meal in TrueCal to confirm the food result.1

Today's totals come from the phone's synced data. If the watch asks you to open TrueCal on iPhone to sync, open the phone app before checking the totals again.1

Watch face complications can show calories, macros, and steps. Voice logging from the watch needs Pro. The phone app also supports voice descriptions, photos, and barcodes.1

Questions and answers

How long can I speak?

A watch voice recording lasts up to 15 seconds. It stops and uploads automatically at the limit. You can use the stop control to finish sooner.1

Does Sent mean the meal is already saved?

The watch uses Sent for an accepted submission, including one queued for processing. Review the saved meal in TrueCal after processing to check its foods and amounts.1

What if the watch asks me to pair again?

Open TrueCal on your iPhone when the watch requests pairing or syncing. If it shows Retry for a saved recording, use that control to retry the upload.1

Get TrueCal

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

Download on the App Store Get it on Google Play

Sources

  1. Official TrueCal facts. TrueCal. 2026.