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Patch

Patch scans product ingredients and flags what your sensitive skin can't handle — built for people with contact dermatitis and allergies. Three tools: an ingredient lookup, a barcode/label scanner, and a curated shopping list. Try it at patchskin.app.

Patch is a web app that checks skincare, haircare and household product ingredient lists against the allergens you already know, and marks each ingredient Avoid, Watch or Safe.

Key features

  • Allergen profile from preset families such as Fragrance Mix, Lanolin and Nickel
  • Custom keyword alerts for ingredients you want flagged
  • Scan a barcode, photograph a label or paste an ingredient list
  • Plain-English reasoning for each flagged ingredient
  • Shopping lists by category and budget with an 'I own this' shelf

Patch is useful for

  • Checking a new moisturizer against patch test results before buying
  • Screening hair dye, soap or laundry products for a known contact allergy

Written by IndieAppCircle from patchskin.app. The maker can edit it.

Submitted by Abby

Reward: 10 credits per test

2 approved tests, 2 total

This listing is paused until the maker is active on IndieAppCircle again, but you can still test Patch from this page.

Visit Patch

Platforms: web

Built for: health

About Patch

Does Patch need an account?

Yes. A free account is needed to build your allergen profile and screen products. The site says it does not sell personal data or share allergen profiles with advertisers.

Which products can Patch check?

Skincare, haircare, hair dye, makeup, body wash, soap, laundry and dish products. It reads ingredient lists by their INCI names and flags each one with reasoning.

Is there a Patch mobile app?

Patch is currently on the web. The site says a mobile app is coming soon to the app store.

Is Patch legit?

Patch was listed on IndieAppCircle in August 2026 by Abby, who opened it to independent testers. 2 independent testers have used it since and had their feedback accepted by the maker. It is distributed through its own website at patchskin.app. IndieAppCircle is a peer feedback exchange, not a paid-review site: testers earn credits only for feedback the maker accepts, and nobody is paid to be positive. We record what happened here; we do not vouch for a product's business practices.

What platforms does Patch run on?

Patch runs on Web. The maker built it for health and wellness users.

Is Patch still looking for testers?

It is not in the feed right now — the listing is paused until the maker is active on IndieAppCircle again. You can still test it from this page for 10 credits per approved test; the maker is notified when feedback arrives, and feedback left unanswered for 48 hours is approved automatically.

How do testers review Patch on IndieAppCircle?

Testers are other indie developers. They open Patch, follow the maker's test instructions, and write up first impressions, confusing moments and bugs. The maker reads each write-up and either approves it — which pays the tester — or rejects it. Only approved feedback is counted on this page. There are no star ratings and IndieAppCircle pays nobody to review anything; it is a feedback exchange, not a review site.

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