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Lintra

Stress patterns in your HRV
JIYULMOM · Health & Fitness
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App info

Developer
JIYULMOM
Category
Health & Fitness
Released
Oct 1, 2026
Version
1.0.1 (Oct 6, 2026)
Price
Free
Size
9.1 MB
Requires
iOS 26.0
Age rating
9+
Languages
English, Arabic, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese,…

In-app purchases

Lintra Pro Annual$34.99
Lintra Pro Monthly$5.99
Current prices, App Store US.
🔒 Price history6 snapshots: when prices changed and new plans appearedGet Pro access

Release date

The release date was moved 1 time before launch.

About Lintra

Some weeks leave you flattened and you never find out which part did it. Lintra reads one number from Apple Watch — heart rate variability — and compares every reading against your own trailing 28-day baseline. Not a population average. Yours. When a reading sits well below where you normally are, Lintra marks it as a dip. Then it looks at your calendar and asks a plain question: does this keep happening around the same thing? THE ANSWER IS A SENTENCE, NOT A SCORE "Your HRV dropped after Weekly Planning Sync in 5 of the 6 weeks it happened." That is the whole product. A named, repeating candidate, with the count it rests on — so you can weigh it yourself instead of trusting a number you cannot audit. IT WAITS BEFORE IT SPEAKS Lintra will not guess. Your baseline comes from a rolling 28-day window, and it will not build one until that window holds readings from at least 10 separate days…
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