Calmara is drawing attention for a claim that sounds simple on the surface and risky in practice: take a photo of a man's genitals, run it through AI, and get an indication of whether a sexual partner is clear or not.
The problem is not just the technology. It is the way a visual scan can appear to answer a question that sexual health testing usually answers through lab work, medical context, and careful privacy protections.
The core problem with visual STI screening
The source article is direct about the central issue: people should not use a photo of someone's genitals and an AI tool to decide whether to have sex. That warning matters because the presence or absence of visible symptoms is not a reliable proxy for infection.
The article notes that the majority of STIs are asymptomatic. That means a person can have an STI without visible signs. In that situation, a tool that relies on appearance could give a user confidence at precisely the wrong moment.
Actual STI tests use blood and urine samples to detect infection. That difference is important. A visual check can only inspect what can be seen, while lab diagnosis is designed to look for infection through biological samples.
Daphne Chen, founder of TBD Health, framed the issue in terms of test performance. She told TechCrunch: "With lab diagnosis, sensitivity and specificity are two key measures that help us understand the test's propensity for missing infections and for false positives."
She added: "There's always some level of fallibility, even with highly rigorous tests, but test manufacturers like Roche are upfront with their validation rates for a reason — so clinicians can contextualize the results."
Marketing can blur the line between lifestyle and medicine
Calmara includes fine print saying its findings should not replace medical advice. But the source article argues that the service's marketing has suggested something more consequential.
Before TechCrunch contacted Calmara, the website title read: "Calmara: Your Intimate Bestie for Unprotected Sex". It was later changed to say "Safer Sex" instead. A promo video also described the product as "The PERFECT WEBSITE for HOOKING UP!"
That matters because users may not separate a legal disclaimer from the practical message of a product. If the product is presented in the context of hooking up, STI status, and sexual decision-making, people may treat its output as more than casual information.
Co-founder and CEO Mei-Ling Lu told TechCrunch that Calmara was not designed as a serious medical tool. She said: "Calmara is a lifestyle product, not a medical app. It does not involve any medical conditions or discussions within its framework, and no medical doctors are involved with the current Calmara experience. It is a free information service."
Lu also said: "We are updating the communications to better reflect our intentions right now." She added: "The clear idea is to initiate a conversation regarding STI status and testing."
HeHealth offers a different framing, but questions remain
Calmara is part of HeHealth, which was founded in 2019. According to the source article, Calmara and HeHealth use the same AI, which the company says is 65-90% accurate.
HeHealth is presented differently from Calmara. It is framed as a first step for assessing sexual health, after which the platform helps users connect with partner clinics in their area for an actual, comprehensive screening.
That model points users toward real testing, which is more reassuring than suggesting a photo-based check can settle the matter. Still, the source article emphasizes that the better framing does not erase the risks.
The main concern is that a product built around intimate images creates privacy questions that are hard to dismiss. When the images are of genitals, uncertainty about storage, processing, sharing, and traceability becomes especially serious.
Privacy and consent are not side issues
Valentina Milanova, founder of tampon-based STI screening startup Daye, told TechCrunch that anonymous mode is a positive feature because users do not have to link photos to personally identifiable information.
But she also warned that this does not automatically make the service de-identified or anonymized. She said: "This, however, doesn't mean that their service is de-identified or anonymized, as your photos might still be traced back to your email or IP address."
The source article also notes that HeHealth and Calmara claim HIPAA compliance because they use Amazon Web Services. But Calmara's privacy policy says it shares user information with service providers and partners involved in service operation, including data hosting, analytics, marketing, payment processing, and security.
The article says Calmara does not specify whether AI scans happen on the user's device or in the cloud. It also says the company does not clearly explain how long data remains in the cloud, if it is processed there, or what the data is used for.
Those gaps are especially important because the service involves intimate photos. A user may see an anonymous mode or a compliance reference and assume the risk is low, while the actual flow of data remains unclear.
The bigger lesson for AI health tools
Calmara shows how AI can create a false sense of certainty when it is placed in a sensitive health context. Sexual health decisions involve consent, trust, testing, privacy, and medical interpretation. A quick visual answer can compress all of that into a signal that may be misleading.
The source article also raises a further concern: what happens if a minor uses the website to check for STIs? Calmara's terms of service prohibit minors from using the product, but the article says that response would not carry legal weight if the company ended up in possession of child sexual abuse material.
The issue is not that sexual health should be off limits for innovation. The issue is whether a product's claims, design, and safeguards match the seriousness of the decisions it may influence.
Chen captured that balance in her assessment of the space. She told TechCrunch: "Sexual health is a tricky space to innovate within, and I can see where their intentions are noble." She added: "I just think they might be too quick to market with a solution that's underbaked."
That is the central lesson. AI tools in sexual health need more than novelty. They need clear boundaries, careful communication, strong privacy answers, and a path that directs users toward real STI testing rather than away from it.