
Simkung ilji
Heart rate score
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Free
In-App PurchasesWith Ads
About
The moment you leapt off a bungee platform or soared while paragliding.
The moment you shared with someone you love.
The moment you experienced something for the very first time.
Life is full of moments we want to remember and hold on to.
We capture them in photos and videos — but hasn't it always felt like something was missing?
Simkung Diary captures the flutter of the moment itself.
Record the racing of your heart in those breathtaking moments,
and revisit that feeling anytime you like.
How it works
· Measures your heart rate in real time during a recorded moment
· Shows a heart-rate graph with your maximum, minimum, and average BPM, plus heart rate variability (your "flutter score")
· Save each moment your way — with photos, labels, and location
Before you start
Recording a moment requires an Apple Watch, and you'll need to allow access to "Heart Rate" and "Workout" on your Apple Watch.
※ Simkung Diary is not a health or medical device, and the heart-rate information it provides is for reference only. If you have any questions about your heart rate, please consult a professional.
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What's New in Simkung ilji
1.1.6
August 5, 2026
· Start using the app right away — no sign-up required · Your data stays on your device and is never stored on a server · New: choose your own theme color · Refreshed design and improved usability throughout · Stability improvements, including automatic recovery if a recording is interrupted
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In-App Purchases
$9.99
Coupon for 30 days use
Coupon for one month (30 days) use




