App Store
Version 3.3.2 · 2026-10-11
Trackers for everybody!
Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.
Not yet tested.
The store currently lists version 3.3.2, updated 2026-10-11.








Store screenshots supplied by the developer.
Stop guessing what's causing your acne. SkinTheory is an acne and skincare tracker that helps you spot patterns in your skin the way a scientist would: make a hypothesis, track it, and let your own data show you what's working.
Skin changes slowly. A new cleanser, a stressful week, a few short nights, extra dairy, your cycle: any of them could matter, and by the time a breakout shows up, you've already forgotten what changed. SkinTheory keeps the record for you, so you're not relying on memory and guesswork.
HOW IT WORKS
1. Hypothesis: Think dairy, poor sleep, a new product or your cycle might be the culprit? Start with a hunch.
2. Track: Do a quick daily check-in with skin photos, how your skin feels, your mood and a pimple count.
3. Analyze: Graphs line up your pimple count against everything else you log across your last 21 entries, so possible acne triggers start to stand out.…
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
No review analysis published for this app.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
Not yet tested. No analysis has been run for this app, so there is no version or date to report.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
Trackers for everybody!
skintheory-skin-acne-routineWhat the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.
Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.