Yesterday
Left forearm
3 /10 Severity
🩹 Skin Diary
Skin Diary App
A dated photo timeline of your skin
Skin changes slowly, and memory is a bad judge of it. Log each check with a photo, the area, a severity score and what might have caused a flare-up. Over weeks the timeline shows whether that mole, patch or breakout is actually changing, and gives your doctor something better than “I think it got bigger”.
Same spot, same light, every week — with a severity score and a note.
Also called a mole tracker, eczema diary, acne log or skin journal.
9:41●●● ▲ ▮
‹ Skin Diary ⚙
3.3/10
Average Severity · 6 entries
1 / 1 this week
Sat 5 Sept
Mole, upper back
1 /10 Severity
Sun 6 Sept
Left forearm
6 /10 Severity
Sun 30 Aug
Left forearm
4 /10 Severity
+
What you’ll track
The Skin Diary log, out of the box
One entry per session, with the timer and location always available. Add or rename variables any time in log settings.
| Variable | Type | Stats shown |
|---|---|---|
| Area | Text · tracked individually | Own stats per value |
| Severity · /10 | Number | Average, Max |
| Timer | Built in | Total time, per entry duration |
| Location | Built in | Pin or place, shown on the log map |
| Notes, photos, sketches, voice memos | Built in | Attached to any entry |
3.3/10
Average Severity
6/10
Max Severity
How it works
From install to first entry in a minute
1
Pick “Skin Diary” during setup
The log is created with the variables above and a few example entries so you can see how it works. Clear them with one tap.
2
Log as you go
Tap plus, fill in what you have, save. Timer, location, notes and photos are there when you want them, hidden when you don’t.
3
Let the stats accumulate
Average severity sits on the log card, with the rest one tap away. Set a goal if you want a nudge.
Why this log
Built for the way you actually do it
Photos in one dated timeline
Every entry can hold several photos. Scroll a single area’s entries and you flip through weeks of pictures in order, which is exactly what a dermatologist wants to see.
One log, many areas
Mark “Area” as tracked individually and each spot gets its own line: average severity, worst score, last checked. No need for a separate log per mole.
Find the trigger
Notes on food, stress, detergent or weather sit next to the severity score. Looking back over a month, patterns show up that you would never spot day to day.
Everything else in the app
Not just a form. A logbook that thinks with you.
The Skin Diary log is one log among many you can keep. Every one of them gets the same tools.
AI analysis
AI reads the pattern for you
Tap the bulb on Skin Diary and get a plain-language read of your trends, what changed recently, and a suggested next goal, built only from your own entries.
Goals
Goals, streaks and reminders
Set a target like three times a week, watch the rolling progress bar, keep a streak, and get a reminder at the time you actually log. The app learns that time from you.
Calendar
A calendar heatmap per log
Every log has its own month view showing which days you logged. Gaps are obvious, consistency is visible, and one tap opens that day's entries.
Rounds
Several areas in one entry
One entry can hold a round per area, each with its own values, and the stats break them out separately.
Attachments
Photos, sketches, voice memos
Attach a photo, draw a quick sketch, or record a voice note on any entry. They stay with that entry and come back on every device you sign in on.
Map
Every entry on a map
Drop a pin or search for the place. Each log has a map view of everywhere you logged, and saved places open directly in Google Maps.
Search
Search across everything
Find an entry by title, note or value across every log, filter by date or location, and jump straight to it.
Privacy
Yours, offline first
Entries save on your phone first and sync when you sign in. No account needed to start, no feed, no one else sees your data.
Who keeps a skin diary
People with eczema, psoriasis or acne who want to understand their flare-ups, anyone watching a mole they have been told to keep an eye on, and parents tracking a child's rash between appointments.
Dermatologists routinely ask for photos over time. Most people arrive with three unlabelled pictures in their camera roll. A dated timeline with a severity score is a better starting point for the conversation.
What a month of entries can show
Per-area stats separate what is stable from what is changing. A mole with the same severity score and the same photo month after month is reassuring; a patch whose score rises after certain notes is a pattern worth raising.
Triggers rarely show up in a single week. Detergent, wool, stress, a food: they only appear when a month of notes sits next to a month of scores.
Questions
Frequently asked
Does the app diagnose anything?
No. It is a record-keeping tool, not a medical device. It helps you and your doctor see change over time; any decision about a mole or rash belongs to a professional.
How do I take comparable photos?
Same spot, same distance, daylight from a window, no flash. Put the tip in the log’s reminder message so you see it every time. A coin next to a mole gives scale.
Where are my photos stored?
On your phone until you sign in; after that they are backed up to your private account storage. Nobody else can see them and there is no sharing unless you choose to share the log later.
Can I track medication alongside?
Add a text variable such as “Cream” or a number variable such as “Dose” to the same log, or keep a separate symptom diary and tag both “skin”.
Get the app
Free to start. Your logs stay on your phone until you sign in, then they back up and sync.