# PIV: Acne Care via Skin Diary — Easiest way to know your skin

> Easiest way to know your skin (iPhone/iPad app by Dermatrix Co., Ltd..)

- Source: https://appshunter.io/ios/app/piv-acne-care-via-skin-diary/id6756899034 (this page in markdown: same URL + `.md`)
- Developer: [Dermatrix Co., Ltd.](https://appshunter.io/developer/1862648507)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 54 MB
- Languages: American English
- Released: 2026-06-30
- Data updated: 2026-08-26
- User reviews in markdown: https://appshunter.io/ios/app/piv-acne-care-via-skin-diary/id6756899034/reviews.md

## What is PIV?

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!


## Version history (last 5 releases)

### 1.1.10 — 2026-08-20

Your journal, your way.
We’ve made this update to make your everyday journaling a little easier.

Choose what you want to track
• Freely turn journal items on or off.
• Drag and drop items to arrange them in your preferred order.
• Hide items you don’t use and add them back whenever you need them.
• Access item settings directly while writing.

Keep better track of your skin concerns
• Added Pores and Marks to skin concerns.

Making edits easier
• Tap a selected Period, Makeup, or Outdoor option again to clear it.
• Clear your Water, Sleep, and Stress entries whenever you need to.
• Changes and deleted entries are immediately reflected on the detail screen.
• Updated item names and wording to make them more natural and easier to understand.

For a smoother experience
We’ve improved various issues that could make journaling inconvenient, including the keyboard covering content, misplaced guidance, and flickering screen elements.

### 1.1.9 — 2026-08-13

This update makes terms and notification settings clearer, and fixes an issue with how skin concerns are shown.

• Fixed an issue where skin concerns you entered yourself didn't display correctly on the Summary tab.
• Refined some buttons and the add and remove icons.
• Required and optional consent items are now clearly separated at sign-up.
• You can now review terms and consent details anytime from the My tab.
• Service Notifications are now separated from Benefits and News.
• Added an option to receive marketing emails.

### 1.1.8 — 2026-07-27

Fixed an issue that could prevent some features from working correctly and improved overall stability.

### 1.1.7 — 2026-07-27

Corrected errors that occurred while using the app and improved stability.

### 1.1.6 — 2026-07-27

You can now set your notifications exactly the way you like.

• Turn on only what you want — reminders to write your diary, gentle nudges after a break, and announcements, each managed separately.
• Set your diary reminder for the days and time that suit you.
• A cleaner, easier-to-use notification settings screen.

We've also improved usability and fixed several bugs.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*