What "undress AI" actually is, and why this list looks different from a typical app roundup

An undress AI app takes an uploaded photo and generates an altered version showing the person without clothing, using an inpainting or diffusion model to fill in what's under the removed clothing. It's a narrower category than AI girlfriend or companion apps — usually a single tool, not a subscription product with ongoing chat and memory.

It's also a much messier market to research honestly. Companion apps like Candy.ai or Replika are recognizable, funded businesses with public pricing pages. A lot of the undress AI category is the opposite: anonymous operators, apps that get pulled from app stores and reappear under a new name, and — as we found firsthand researching this piece — "best of" lists that turn out to be marketing for the apps ranked on them rather than independent reviews. That changes how a comparison like this has to be written: less feature-by-feature scoring, more about what's actually verifiable.

Technically, all of this sits inside a wider category: content made or shared without the consent of the person shown, usually called non-consensual intimate imagery, which predates AI and is now being regulated separately from the generation technology itself. We go deeper on that in our legal guide — this piece focuses on the services themselves.

What independent investigations found across the category

In January 2026, the Tech Transparency Project tested nudify apps across the Apple App Store and Google Play and found more than 100 of them, with a combined 483 million downloads and over $122 million in lifetime revenue. Thirty-one of the apps were rated as suitable for minors despite being able to generate nude images — a systemic mismatch, not an edge case. About 40% of the apps that came up in relevant searches could render a photo of a woman nude or scantily clad. After the investigation and press coverage, Apple removed 15 apps and Google removed at least 7, with Google saying it investigates policy violations that get reported to it.

A separate CNBC investigation, published in September 2025, found that disclaimers requiring user consent exist in the terms pages of many of these apps, but it's unclear whether anything actually enforces them — and that a number of tools in this category market themselves publicly as harmless "face swap" apps specifically to avoid the scrutiny a more honest label would invite. One AI security researcher at Cornell Tech described some of these apps as presenting themselves as playful while functioning primarily as pornography generators.

That same reporting surfaced a real legal gap: in one case they investigated, a man created deepfake nude images of women and never distributed them, and there was no clear crime, because most laws up to that point targeted publication rather than creation. That's part of why state lawmakers — including a 2026 Minnesota bill from state senator Erin Maye Quade — are trying to close the gap by targeting the platforms that enable this rather than only the act of sharing.

Neither investigation is about Hoty — we weren't part of either sample. We're citing them because they describe the actual market you'd be choosing from if you searched for this category, and the pattern they found — a written policy with no visible enforcement, marketing that obscures the real function — is exactly what to check for before trusting any specific app, including ones not named here.

One well-documented case: Clothoff

Clothoff is one of the more visible names in this category, and one of the few with real independent reporting behind it rather than just self-published marketing. A 2025 investigation based on a former employee's account — a Der Spiegel report, covered in English by GIGAZINE — described an operator that keeps its identity obscured (using AI-generated faces for the people it presents as executives), runs roughly ten nude-image services as a network rather than one product, and spends around €150,000 per country on marketing in Germany, Spain, France, and the UK, targeting men aged 16 to 35.

The same reporting connects the operation to staff based in former Soviet countries, with internal documents in Russian. Separately, the app has been tied to real incidents at schools in the US and Spain, where male students used it to create and circulate fake nude images of female classmates. None of that is about pricing or features — it's about who's actually running the tool and what's happened when people used it on classmates who never agreed to it. If you're weighing Clothoff specifically against Hoty on features and price, our Clothoff comparison goes through that dimension by dimension.

A tool that at least publishes a consent policy: DeepSwap

DeepSwap (branded DeepSwapAI, operated by an entity called Mindspark AI Limited) is broader than a single-purpose undress tool — it also does face swapping and other AI image editing — but it's one of the few names in this space with a published Ethical Use & Acceptable Content Policy: it prohibits generating non-consensual intimate imagery and requires users to warrant they have the right to any likeness they upload.

That's a real, checkable difference from an app with no policy at all. But a written prohibition isn't the same as a technical gate: it depends on the platform actually catching and blocking violations rather than relying on users to self-police, and outside reporting has flagged basic transparency questions about the company itself, including a shifting claimed headquarters. A policy is worth more than nothing. It's not the same as a check that runs before every generation.

Hoty (that's us)

Read this with the same skepticism as the rest of the list — we built it, so take it as a disclosed claim, not a neutral review. Hoty's photo generation runs every upload through automated moderation for consent and age before anything is generated or charged, not as a written policy you'd have to trust, but as a check that blocks the request if it fails. If moderation rejects a photo, you're not billed for the attempt.

There's no subscription. New accounts get free coins to try it, and every generation after that costs coins at a price posted publicly, the same catalog used for photo and video effects generally. If a generation fails for a technical reason after passing moderation, the coins refund automatically. It runs in the browser at hoty-ai.com, no app install, in English, Russian, or Hindi.

We're not claiming this makes every legal question disappear — compliance depends on how the checks perform in practice, and the law in this area is still moving. What we can say plainly: the gate runs before generation and before charging, not as marketing copy on a terms page.

The legal ground under this whole category is shifting fast

This isn't background noise — it changes what "best" should mean when you're picking a tool here. In the EU, the European Parliament and Council agreed in 2026 to add "nudifier" systems to the AI Act's list of banned practices, in the same prohibited category as tools that generate child sexual abuse material. Companies have until December 2, 2026 to comply, with fines up to €35 million or 7% of global turnover for those that don't, and national regulators empowered to pull noncompliant products from the EU market.

The UK criminalized creating a nonconsensual sexual or intimate image of an adult by any method, AI included, starting in February 2026, and is moving toward criminalizing the sale of tools built for that purpose specifically — shifting liability from the person using the app to the company that makes it. In the US, the TAKE IT DOWN Act, in force since May 2025, makes it a federal crime to knowingly publish this kind of imagery and requires platforms to remove valid reports within 48 hours, on top of laws in 45-plus individual states. Our full legal breakdown covers all three in detail, with sources.

It's not only governments moving on this. In June 2025, Meta sued Joy Timeline HK Limited, the company behind the nudify app Crush AI, alleging the company ran more than 8,000 ads across Facebook and Instagram in early 2025 — many disguised as innocuous images — after repeatedly having ads pulled for policy violations, and kept dodging detection by spinning up new advertiser accounts and swapping domains. Meta is asking a court to permanently bar the company from advertising or distributing the tool on any Meta platform. Whatever the outcome, it shows the ad platforms these apps depend on for traffic are starting to treat them as adversarial, not just borderline.

The direction across all of this is the same: apps with no consent check aren't just an ethics problem for the person using them anymore. They're moving toward being the legal problem, for the company running them.

How to actually evaluate one of these tools

Start with the question the investigations above kept surfacing: does a policy against nonconsensual images actually get enforced technically, or does it just exist on a page nobody reads before uploading? A checkbox agreeing to terms isn't the same as an automated check that can reject a photo.

Ask what happens to the photo after: is there a stated retention or deletion policy, or silence on the topic? Are prices posted before you pay, or only visible once you're inside the app? And take a "best undress ai app" list you find online with real caution — check whether it's actually independent or whether, like some we found while researching this, it's marketing dressed up as a review.

App store presence is a weaker signal than it looks, too. The Tech Transparency Project's tests found dozens of nudify apps sitting inside official app stores with age ratings that didn't match what the app could actually do. Being listed in Apple's App Store or Google Play isn't proof a tool has been vetted for this specific risk — it just means it hasn't been caught yet.

None of this replaces the basic legal question, which doesn't depend on the app at all: does the person in the photo actually know and agree. If the answer is no, the tool's policy page doesn't matter — you're outside what any of these laws now allow, regardless of which service you used. For a longer walkthrough of what to check in a service's privacy and moderation practices, see our privacy and moderation guide.

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