Dermly Skin · Diary
A skin diary, designed with clinicians in mind

Your skin, your story.

Dermly is a private, patient-controlled companion for people living with chronic skin conditions – urticaria, eczema, acne, alopecia, and more. The space between visits, recorded properly: validated daily scoring, photo logs, body maps, triggers, and adherence – captured the way your patients can actually keep up with, summarised the way you need to read it. Data stays on the phone until the patient chooses to share it.

Walk through the app Request a demo
Stays on the patient's phone Validated scoring across conditions Clinician-ready PDF export
See every screen
See it in motion

Every screen, every data point.

Step through the patient experience as it would unfold on a phone. Each screen shows exactly what's captured, when, and how it's structured for clinical review. Tap the screens to interact, click any item on the left to jump, and read the right column for what gets recorded at each step.

9:41 ● ● ●
Dermly
Skin · Diary

A quiet companion for everything happening on your skin.

Private by design.No account. No cloud. No data leaves this device.

9:41● ● ●
Step 1 of 7

What should we call you?

Your name stays on this device. You can use a nickname if you prefer – it's just for how Dermly greets you.

Step 2 of 7

Your age range

Some skin conditions present differently across age groups. We use this to calibrate scoring norms.

Under 12
Paediatric
12–17
Adolescent
18–34
Young adult
35–54
Adult
55–74
Older adult
75+
Senior
Step 3 of 7

Body shape for tracking

Pick the figure closest to your body – this is just for the body map. Your data is private.

Male
Female

If you'd rather not say, pick whichever feels right – you can change this later in Settings.

Step 4 of 7

Your skin tone

The Fitzpatrick scale is a clinical standard. It helps us calibrate photo analysis fairly – many AI tools work less well on darker skin without this calibration.

I
II
III
IV
V
VI

Type III: Sometimes burns, gradually tans. Common in Mediterranean and mixed European backgrounds.

Step 5 of 7

What are you tracking?

Pick anything your doctor has diagnosed. You can also start tracking undiagnosed symptoms.

Chronic urticaria
Hives, wheals, itching
Eczema / atopic dermatitis
POEM weekly score
Psoriasis
Plaques, scaling
Acne
Photo tracking
Alopecia
Hair loss, photo tracking
Vitiligo
Depigmentation tracking
Other / undiagnosed rash
General skin diary
Step 6 of 7

Current medications

Tap any you take. We'll add these to your daily diary so they're easy to log.

Fexofenadine
Antihistamine · 180 mg
Cetirizine
Antihistamine · 10 mg PRN
Loratadine
Antihistamine · 10 mg
Omalizumab (Xolair)
Biologic injection
Topical corticosteroid
e.g. hydrocortisone, betamethasone
Oral prednisone
Short course as prescribed
Step 7 of 7

Known triggers or allergies

Anything that's set off a flare before. We'll surface these in your daily check-in.

Stress
Alcohol
NSAIDs (aspirin, ibuprofen)
Heat
Cold
Pressure
Tight clothing
Sweating / exercise
Infection
Hormonal cycle
Latex
Penicillin
Shellfish
Nuts
Food preservatives
Pollen
Pet dander
9:41● ● ●
Tuesday, 29 April

Good morning, Will.

W
Today's check-in
Urticaria · Day 9 of 14
Pending
Tracking
Urticaria
UAS7 · DLQI · daily
Eczema
POEM weekly score
Acne
Photo tracking
Alopecia
Photo + extent
Vitiligo
Extent tracking
General
Open rash diary
Your data stays here Photos and scores are saved only on this phone. Nothing is uploaded. Location removed · Faces blurred · No accounts
9:41● ● ●
Day 9 · Tue 29 April

Today's UAS7

EAACI 2022
Wheals · past 24 h

How many hives have you had over the last day?

0 None No wheals
1 Mild <20
2 Mod. 20–50
3 Intense >50
Itch · past 24 h

How troublesome has the itch been?

0 None
1 Mild
2 Mod.
3 Intense
Daily UAS
1 wheal + 2 itch
3
Possible triggers today
Stress
Heat
Cold
Pressure
Alcohol
NSAIDs
Infection
Exercise
+ add
Medications today
Fexofenadine
Scheduled · taken
07:30
Dose
180mg
Time taken
07 : 30
Cetirizine
As needed · 10 mg
19:00
Dose
10mg
Time taken
19 : 00
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Where are the wheals?

Body map

Day 9

Tap each region where wheals are present. Tap again to set severity.

Front
Back
Male body, front view Male body, back view Female body, front view Female body, back view
Mild
Moderate
Intense
Affected regions
5 of 20 zones
Add photos for affected regions

Optional – capture a photo for any region you've marked. Skip any you'd rather not photograph.

Right upper arm
✓ Photo captured · 14 wheals counted
Right forearm
Tap to capture
Chest
Tap to capture
Abdomen
Tap to capture
Right hand
Tap to capture
9:41● ● ●
14 photos · 9 days

Photo timeline

Photos auto-protected GPS location stripped. Time kept for clinical record. Faces and genitals blurred on-device before saving.
Today · Tue 29 Apr
Right arm
07:18 · 14 wheals
Chest
19:40 · 8 wheals
Yesterday · Mon 28 Apr
Right thigh
21:05 · 22 wheals
Back
08:30
Add photo
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Tap each wheal · Right arm · 07:18

Count assist

Beta
1
2
3
4
5
6
7
8
9
10
11
12
13
14
?
?
Counted
14
Suggested
+2
UAS Wheal
1 /3
How this works

Tap each wheal you see. Dashed circles are suggestions – tap to confirm, or ignore them. Photos stay on your device.

9:41● ● ●
Last 14 days

Patterns

Three-day rolling average up 60%
Daily UAS averaged 4.7 over the last 3 days vs 2.9 the week prior. Worth mentioning at your next visit.
28
UAS7 · this week
Severe
16 Apr22 Apr29 Apr
Trigger correlation

On the 4 days you logged alcohol, average UAS was 5.3. On other days, average UAS was 2.6.

Suggestive only – not enough data for statistical significance. Mention at next visit.

DLQI · Week 1
14
of 30 · Very large effect
9:41● ● ●
Answers from your own data

Ask Dermly

When was my worst day?
Did I miss any meds?
Triggers this month
When did my itch last hit 3?
Itch was scored 3 (intense) on Sunday 27 April and Monday 28 April. Both days you'd logged alcohol the prior evening and your wheal count was over 20.
From your last 14 entries · runs locally on device
Have I taken fexofenadine every flare day?
Yes – you took fexofenadine 180 mg on every day you logged a wheal score of 1 or higher (9 of 14 days). On 2 days with a score of 3 you also added cetirizine in the evening.
All entries searched · no data left this device

Answers are generated by simple rules over your local entries. Not medical advice. Always check with your doctor.

9:41● ● ●
For your appointment

Export

A clinical-format PDF you can share at your appointment.

Urticaria Activity Score (UAS7 × 2)
14-DAY DIARY · EAACI/GA²LEN/EuroGuiDerm 2022
PatientWill
Period16–29 Apr 2026
23
Week 1
28
Week 2
51
Total · 14d
DayDateWh.ItchUAS
116 Apr112
217 Apr123
318 Apr224
419 Apr112
520 Apr224
621 Apr235
722 Apr123
Week 1 UAS723
823 Apr112
924 Apr123
1025 Apr336
1126 Apr336
1227 Apr235
1328 Apr224
1429 Apr112
Week 2 UAS728
Scoring per Zuberbier T et al., Allergy 2022;77(3):734–766
Wheals: 0=none · 1=<20 · 2=20–50 · 3=>50  ·  Itch: 0=none · 1=mild · 2=moderate · 3=intense
Includes
  • ✓ UAS7 daily log (14 days)
  • ✓ DLQI weeks 1 & 2
  • ✓ Body-map heat overlay
  • ✓ Trigger frequency table
  • ✓ Medication adherence summary
  • ✓ Photo timeline (optional)
9:41● ● ●
Diary management

Settings

People

Each person you're tracking has their own diary, photos and scores. Tap a person on Home to switch whose diary you're viewing.

Storage
localStorage usage
0%
0 KB used ~5 MB limit

Photos use the most space. Export and clear older photos if you hit the limit.

Backup & export

Tip: export weekly and email yourself a copy as a safety net.

About

Dermly Skin Diary is a personal symptom tracker. Not a medical device. Share entries with your treating clinician.

All data stays on this device. Nothing is uploaded.

Danger zone
Home
Today
Trends
Ask
Settings
For clinicians

The diary you wish every patient walked in with.

Most patients arrive with fragments – a phone full of unsorted photos, a guess at how bad last fortnight was, a drug regimen they remember in pieces. Dermly closes that gap with structure, not effort.

  • 01

    Auditable scoring

    Scores are computed from structured daily entries, not remembered estimates. Whether it's UAS7 for urticaria, POEM for eczema, or photo-based change for acne and alopecia – the inputs are exposed and the numbers can be defended at peer review.

  • 02

    Standardised photos, no extra workflow

    Photos are captured by region with on-device privacy processing. They land in the export grouped by date and site – saving you the triage you'd otherwise do in clinic.

  • 03

    Adherence and quality of life in context

    Medication adherence and quality-of-life scoring sit alongside severity, so escalation decisions – antihistamine up-titration, biologic consideration, topical regimen change, oral retinoid review – have the data they need beside them.

  • 04

    You see the export. We see nothing.

    There is no Dermly server reading patient data. The PDF arrives in your inbox because the patient sent it from their phone – that is the entire data path.

Clinician summary
Example · CSU · 14-day window
PDF
UAS7 (current)14 · mild
UAS7 (prior week)22 · moderate
DLQI (day 14)8
Antihistamine adherence92%
Photos logged11 across 4 regions
Most-noted triggerHeat
Daily UAS · 14 days
How it works

Everything a chronic skin condition needs tracked. Nothing it doesn't.

Built around the daily reality of chronic skin disease – conditions where symptoms wax and wane, triggers are guessed at, and the gap between appointments is where most of the story actually happens. The structure adapts: the right scoring instruments switch on for the right condition, the rest is the same patient experience.

Validated daily scoring

The right instrument for the condition: UAS7 and DLQI for urticaria (EAACI / GA²LEN / EuroGuiDerm / APAAACI 2022), POEM for eczema, photo-based tracking for acne and alopecia. The patient sees the version that fits them; the score is computed exactly as the literature defines it.

Photo logs, by region

Patients capture standardised photos by body region. Hidden photo data – location, device, timestamp – is removed at capture, and faces are blurred on the phone before anything is saved. The result is a visual timeline that's actually useful in clinic.

Body map & triggers

A simple front/back body map records distribution and severity over time. A growing trigger list – heat, stress, foods, NSAIDs, infection – is captured alongside, surfacing patterns no patient diary written on paper would catch.

Medication adherence

A clean medication card tracks dose, time, and a taken / missed / skipped status – for antihistamines, topicals, biologics, immunosuppressants, oral retinoids. Dose changes – common across most chronic dermatology – are easy to record and easy to read at follow-up.

Trends, not noise

Daily, weekly, and monthly views show what's actually moving. Severity heat scales, trend deltas, and trigger correlations replace the wall of numbers most tracking apps default to.

One-tap clinician export

A structured PDF summary – score history, quality-of-life trajectory, medication adherence, photos, body-map distribution, and noted triggers – generated on device, ready to send to you before the appointment.

Privacy posture

Stays on the phone. No account. No cloud. Nothing leaves until the patient chooses to share it.

A skin diary holds some of the most personal data a patient generates. We treat it that way. No server holds the entries, no tracking watches what's done in the app, no third party sees the photos. The clinician summary is the only thing that ever leaves – and only when the patient sends it.

Stays on the phone

Every entry, score, and image is saved only on the patient's phone. There is no Dermly database, so there's nothing to leak, lose, or be subpoenaed.

Hidden photo data removed

Photos carry hidden information – where they were taken, on what device, at what time. Dermly removes all of that the moment a photo is captured.

Faces blurred automatically

If a face appears in a photo, it's blurred on the phone before the photo is saved. The original image is never stored.

The patient chooses what to share

The clinician summary is a PDF made on the phone. The patient decides when to send it and to whom. It's the only thing that ever leaves.

Scope

Built for the conditions you actually see in clinic.

One patient experience, calibrated per condition. The structure – daily severity, photos, body map, triggers, medication, quality of life – adapts to fit each diagnosis, with the right validated instruments switched on for the right condition.

Live now
Live

Chronic urticaria

UAS7 and DLQI workflow, antihistamine up-titration tracking, trigger surveillance, angioedema flagging.

Live

Eczema / atopic dermatitis

POEM weekly score, flare logging by region, itch-sleep impact, topical and systemic adherence.

Live

Acne

Standardised facial photo timeline, lesion-count tracking, oral and topical regimen adherence.

Live

Alopecia

Photo timeline by scalp region, extent estimation, treatment response over time.

Coming next
Next

Psoriasis

Patient-reported PASI proxies, biologic adherence, joint symptom flagging.

Next

Hidradenitis suppurativa

Lesion counts by Hurley region, flare timeline, drainage notes.

Next

Vitiligo

Body-map extent tracking, repigmentation photo timeline, phototherapy adherence.

Open

General rash diary

For undiagnosed or transient presentations – photo timeline, triggers, free-text symptom diary.

Treating something we don't cover yet? Tell us – most modules take a few weeks to ship once we know clinicians want them.

For practitioners

See it in your own clinic.

If you treat patients with chronic skin conditions, we'd like to walk you through Dermly and put a working version in your hands. Drop us a line and we'll arrange a short demo.

Email hello@dermly.skin

We reply within two business days. No marketing list, no follow-up sequences.