PIV: Smart Skin Diary

Content rating
Everyone
50+
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Content rating
Everyone
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About this app

Figuring out what's behind a breakout isn't easy. Even when you use the same products, your overall condition, diet, sleep, and changes in your environment all work together to affect your skin. PIV is a skincare app that makes it easy to log the many factors that influence your skin every day, so you can understand how your skin changes through the data you build up over time.
■ How's your skin today? Keep a skin diary

Create a daily entry with just one photo and a few quick taps.

Log not only your skin's condition and concerns, but also the skincare products you used, what you ate, your menstrual cycle, doctor visits, and more.

The more you record, the easier it becomes to see when and why your skin gets better or worse.
■ Your skin diary, turned into graphs

Every entry becomes data. The Summary tab shows how your skin's condition changes over any period in easy-to-read graphs, and you can see the ratio of good days to bad days across the month at a glance.

Compare your records to see exactly how your skin changed after trying a new product or adjusting your daily habits.
■ See your skin's changes with your own eyes

PIV automatically adjusts the angle and tilt of each photo as it saves them, and the Gallery tab collects them in date order. Pick any two photos to view side by side and check your skin's progress for yourself.
■ Manage your skincare routine, too

Register the products you're currently using, and you can pull them up instantly when writing a diary entry.

No need to type product names every time, so logging is even easier.
The more you log, the deeper your understanding of your own skin becomes. Start your skin diary today with PIV!
Updated on
Jul 21, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Health and fitness, and Photos and videos
Data isn’t encrypted
You can request that data be deleted
Committed to follow the Play Families Policy

What’s new

We've added a brand-new Notices feature!

- Notices — Browse the notice list and details from My Page, and see event pop-ups right on the Home screen
- My Skin Concerns — Add your own custom skin concern items and pick them instantly while writing a diary entry
- Refreshed My Page — A cleaner, easier-to-navigate menu layout
- Overall stability improvements and bug fixes
Content rating
Everyone
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App support

About the developer
(주)더마트릭스
dev@dermatrix.io
대한민국 대구광역시 수성구 수성구 범어천로 54 3층 3씨-78호 (범어동) 42140
+82 10-3375-1369