baselit.app / blog / baselit vs thea
[ Comparison · skin analysis apps ]
Baselit vs Thea: which one fits you?
Short version: for most people this is decided by geography before anything else. Thea ships in the United States, the United Kingdom and Canada only; if you live anywhere else, it is not an option and the rest of the comparison is academic. Where Thea is available, it is the better choice if you want prescription-strength care in the same app, which is something Baselit will never offer. Baselit is the better choice if you want a repeatable cosmetic score that turns into an explained routine, whether the one you already have is doing anything or you don't have one yet, you are outside those three countries, or you specifically do not want a prescription funnel. We make Baselit, so weigh this accordingly.
Who wrote this?
We did, and we make one of the two apps. That is worth saying at the top rather than in a footnote, because a comparison written by a competitor is only useful if it names the cases where the other side wins. This page does that in its own section, with specifics. Every factual claim about Thea here comes from public App Store listings and published reporting read on 26 July 2026, and where we do not know something we say so rather than filling the gap with an assumption.
What is the actual difference between Baselit and Thea?
They are different kinds of product that both start with a selfie. Thea is a subscription app with a prescription pathway stacked on top of it: alongside the app subscription you can be prescribed things like microdosed isotretinoin, finasteride and GHK-Cu peptides, handled outside the App Store. The subscription is the front door; the prescription offer is the business. Baselit is a cosmetic tracker: it reads five skin axes from one selfie, normalizes lighting and framing so the same photo returns the same number, builds an over-the-counter routine from your own results, explained step by step through an in-app coach called Mia, and asks you to re-scan weekly to see what moved. It works the same way whether you already have a shelf of products or none at all. There is no prescription pathway of any kind and there never will be.
So the honest framing is not "which is better". It is: do you want a cosmetic measurement loop, or do you want access to prescription-strength options with a clinical process attached? Those are different purchases at different price levels, and only one of them is available worldwide.
Can you even get Thea where you live?
As of 26 July 2026, Thea is listed in the United States, the United Kingdom and Canada only. It has no German App Store ratings at all, because it is not listed there. That single fact settles the comparison for most of Europe, all of Asia, all of Latin America, Australia and everywhere else: Thea is not a choice you can make. Baselit is available on iOS worldwide, with prices localized per storefront rather than converted from dollars. Neither app is on Android, so if that is your phone, this whole page is the wrong comparison for you.
Name confusion worth clearing up: the app in this comparison is Thea Technology Inc., which operates at hellothea.ai. Thea Care at theacare.de in Berlin is a different, unrelated company that shows up in the same searches. If you are researching reviews, check which one you are reading about before you draw a conclusion.
Side by side
| Baselit | Thea | |
|---|---|---|
| What it is built around | A repeatable five-axis cosmetic score and a weekly re-scan loop | A subscription app with a prescription pathway stacked on top |
| Where you can get it | iOS, worldwide | iOS, United States, United Kingdom and Canada only |
| What it recommends | Over-the-counter products only, actives written out in full | Over-the-counter plus prescription options including microdosed isotretinoin, finasteride and GHK-Cu peptides |
| Score format | Five separate axes (clarity, evenness, texture, hydration, radiance) plus one composite number | Not verified by us in detail. Ask Thea directly what its score reports |
| Same photo, same number? | Yes, by construction: the normalized image is fingerprinted and the result cached against it | Not a stated guarantee that we could verify |
| Price | A monthly subscription with 7 days free, or a one-time purchase that does not renew. Priced per country, so the amount for your storefront is shown in the App Store before you confirm | USD 1.99 to 9.99 weekly · 9.99 to 14.99 monthly · 19.99 to 59.99 annually, plus prescription costs outside the app |
| Free trial | 7 days, on the monthly plan. The one-time purchase has no trial, and until you buy either one the score stays blurred | Not verified. Check the current listing before you install |
| US App Store ratings | 7 worldwide at 5.0 average (six in Germany, one in the UK), none in the US yet. Live since July 2026 | About 14,412 |
| Company backing | Self-funded, one-person build | 4 million USD pre-seed led by General Catalyst; reported 500,000 users in under a year |
| Best for | Seeing whether a routine is working, or building one from your scan if you don't have one, anywhere in the world | Prescription-strength care in the US, UK or Canada |
Cells marked "not verified" are things we could not confirm from public sources without installing and subscribing in a storefront we do not have access to. We would rather leave a gap than invent a comparison point. Thea is an independent third-party product with no affiliation to Baselit.
When is Thea the better choice?
Three clear cases, and they are not small ones.
- You want prescription-strength care. If your skin concern has outlasted a shelf of over-the-counter products and you live in the US, UK or Canada, Thea's prescription pathway is a real answer and Baselit is not a substitute for it. We recommend over-the-counter products, we do not involve prescribers, and no amount of score tracking replaces that.
- You want the established product. Thea has roughly 14,412 US App Store ratings against our 7 worldwide, raised 4 million USD in pre-seed funding led by General Catalyst, and reported 500,000 users in under a year. We launched in July 2026. "Lots of people already use it" is a legitimate thing to want, and on that measure Thea is well ahead of us today.
- You want to pay for one cheap week and stop. Thea's weekly tier can start at 1.99 USD. We do not sell a week at all any more: it is a monthly subscription that opens with 7 days free, or a single payment. Our free week is real, but you start it by starting a subscription and have to cancel in time. If the smallest possible first payment is what matters, that shape only exists on their side.
When is Baselit the better choice?
- You live outside the US, UK and Canada. Then Thea is not available and the comparison ends there. This covers most of the world.
- Your question is "is this routine working", or "I don't have a routine, where do I start". Baselit is built around one property: the same photo returns the same number, so a change across weekly scans reads as your skin rather than your lighting. Five separate axes mean you can see what moved, not just that something did, and they drive a routine with an in-app coach, Mia, to explain why each product is in it. The scoring side of this is explained in detail in how skin scores work.
- You do not want a prescription funnel. Some people want the option; others specifically do not want their skincare app steering them toward a prescriber. Baselit's recommendations stop at over-the-counter products. That is a hard limit, and whether it reads as a limitation or as the point depends entirely on you.
Baselit limits
- iOS only, no Android
- Hard paywall after a blurred score; the free week runs on the monthly plan and keeps running unless you cancel
- Tiny rating base, live since July 2026
- No prescriptions, no clinician review, no mole checking
- Hydration from a selfie is an impression, not a probe reading
- Needs roughly consistent lighting between scans
Thea limits
- Unavailable outside the US, UK and Canada
- iOS only, no Android
- Prescription costs sit outside the app subscription, so the sticker price is not the full price
- Score repeatability across re-scans is not a stated guarantee we could verify
- Several details of its scoring we could not verify from public sources
What about the business model behind each?
Worth understanding, because it shapes what each app nudges you toward. Thea's subscription is the funnel and the prescription offer is where the value stacks: both of the largest apps in this category added a prescription or clinician layer on top of the subscription rather than replacing it. That is not a criticism, it is a structural fact, and it means the app has a reason to move you toward the higher-value offer. Baselit's incentive is different but not neutral either: we make money when you keep subscribing, which means our incentive is that you keep re-scanning. We think that incentive is well aligned with a product whose only job is to show you honest change, including negative change. But you should know it is there.
When neither is the right answer
If you have a mole or a spot that is changing shape or colour, itching, bleeding or growing, no app in this comparison is what you need. That belongs with a doctor in person. Baselit describes the visible look of skin for cosmetic purposes; it does not identify anything medical and it never tells you that something is fine. If you are unsure whether what you are dealing with is cosmetic at all, start with a professional rather than with a subscription.
Frequently asked questions
What is the difference between Baselit and Thea?
Is Thea available in Germany, Austria or the rest of Europe?
When is Thea the better choice than Baselit?
When is Baselit the better choice than Thea?
How much do Baselit and Thea cost in 2026?
Is Thea the same company as Thea Care?
Can either app diagnose a skin condition?
Baselit is a cosmetic skin-analysis app, not medical advice. The score describes the visible look of skin in a photo. It is not a diagnosis, not a health measurement, and no substitute for a doctor or dermatologist. Thea is an independent third-party product with no affiliation to Baselit; descriptions reflect public App Store listings and published reporting read on 26 July 2026 and may change without notice.