SkinLattice

Private skin tracker for iPhone, iPhone Duo and iPad

Know your routine. Understand your skin’s patterns.

Keep a searchable skin diary, reuse morning and evening routines, and review product ingredients. SkinLattice connects your own records into personal patterns, with your photos and logs stored on-device.

On-device

Photos and logs stay private by default

Daily

Fast check-ins for skin, routine, and context

Personal

Ingredient signals from your own history

Recent signal

Matrix learning

Routine

Routine tracked successfully

Private by default

Photos stay on-device

How it works

From daily check-in to personal ingredient pattern.

A calm daily rhythm: check in, connect what you used, then spot the ingredient patterns that feel personal to your skin.

Step 1

01

Log your skin

Rate breakouts, redness, and comfort each day. Attach a photo if you want.

Quick enough to keep up with, detailed enough to notice real changes.

Step 2

02

Track products and routines

Reuse a saved routine. Find products by name or barcode, read an ingredient label on-device, or enter details manually. Review ingredients before saving.

Your routine stays tied to the days that followed, not lost in a notes app.

Step 3

03

See your Ingredient Matrix

SkinLattice finds which ingredients seem linked to your calmer or rougher days — from your data, not generic scores.

Patterns stay grounded in your history, so the insights feel useful instead of generic.

SkinLattice 2.20

Clearer triggers, steadier routines.

Version 2.20 adds an avoid list, reaction timing, repeating routines, steadier skin photos, on-device summaries, and a trial timeline. It also brings two-column layouts on iPad and iPhone Duo.

Avoid list

Add single ingredients or groups such as fragrance and sulfates. Products that contain them are flagged, free for everyone.

Reaction timing (Pro)

See how long reactions usually take to appear after you use an ingredient, and which other factors were present on those days.

Repeating routines

Repeat a routine every few days or weeks, not only on set weekdays.

Steadier skin photos

A faint overlay of your last photo, an optional face guide and a light check help you take comparable photos.

Reports and summaries

Where Apple Intelligence is available, the weekly review, ingredient patterns and dermatologist PDF can include a short summary written on your device. Free users can export the dermatologist PDF for the last one or two weeks.

Trial timeline

Check the free-trial timeline before you start. An optional reminder arrives two days before the trial converts.

Features

Skincare tracking with a private Ingredient Matrix.

SkinLattice brings skin diary, product shelf, ingredient checker, and calm iOS-native insight into one privacy-first app.

Daily skin check-ins

Record breakouts, redness, and comfort, with optional photos and lifestyle context. Find past entries in your searchable journal.

Personal Ingredient Matrix

See which cosmetic ingredients may be associated with calmer or harder skin days, based on your own routine history.

Product shelf

Add products by name, barcode, label photo, or manual entry. Compare formulas and keep past ingredient lists connected to your history.

Privacy-first controls

Keep logs and photos on-device. Create password-protected encrypted backups, review what a restore will replace, or delete local data.

Reusable morning and evening routines

Save routine templates for your week, repeat a routine every few days or weeks, or reuse your latest morning or evening routine. Record what you actually used, including skipped sessions.

Reports for your dermatologist

Create a readable PDF of your recorded skin history. Free users can export the last one or two weeks, and Pro offers longer date ranges. Choose a paper format and whether to include up to six check-in photos.

Smarter skin signals

More than a skincare diary.

Review ingredient lists, recorded routines, and optional context together. The Matrix shows possible associations with evidence and confidence, including when information is limited or mixed.

Read the label

Ingredient-label reading on your device

Photograph an ingredient label or paste its text. On-device text recognition creates an editable list; check it against the packaging before saving. Manual entry is available when reading is unsupported.

Before you save

New product ingredient preview

Compare product formulas side by side. Pro product previews also connect a new product’s ingredients with your personal Matrix, while showing limited or mixed evidence.

Advanced context

Trials, weekly review, and routine context

Use 14-day product or ingredient diary windows, optional cycle context, and active-overload notices to review changes. These observations do not establish an allergy, a cause, or a treatment result.

Privacy

Your skin data stays yours.

The app is designed for sensitive personal data from the start, with local-first storage and clear controls.

  • Photos are stored on-device unless you choose to back them up.
  • Your skin journal is not sold to advertisers or data brokers.
  • Optional weather context sends your approximate location to Apple WeatherKit. Turning it off clears the saved location.
  • Create an encrypted backup, review a replacement preview before restoring, and delete local app data whenever you choose.
  • Online product lookup sends a search query or barcode to external catalogs, without your saved journal, skin profile, or photos.
  • Widget completion status is off by default. It never shows scores, notes, photos, or product names.

Skincare Insights

Better records. Better questions.

Learn how to check ingredient labels, track routine changes, and prepare a useful skin diary for your dermatologist—with clear steps and sources you can read.

View all insights
Product Testing8 min read

Patch Test Skincare: How to Do It and What to Log

A home patch test shows how your skin responds to one product on one small area over several days. This guide covers how to run one, how long to keep going, what a reaction looks like and what to write down.

Read

SkinLattice Pro adds the full Ingredient Matrix, personal product previews, shelf analysis, longer dermatologist PDF date ranges, and longer Skin Evolution photo timelines.

Start understanding your skin.