The combined situation

Undress.app is one of the highest traffic nudify services. It markets itself through aggressive paid social campaigns and operates a referral program that incentivizes redistribution. When Undress.app output appears on Tumblr, removal proceeds through the statutory takedown process under 47 USC 223a combined with source attribution to strengthen the legal claim.

Why this combination is high risk

Undress.app has been observed using stolen Instagram and TikTok photographs in its marketing previews. It has been the subject of UK Information Commissioner's Office inquiry since 2024. On Tumblr specifically, tumblr reblogs create persistent copies of content across hundreds of unrelated blogs. a single original post can have thousands of reblogs, each requiring a separate url in the takedown notice.

How removal proceeds

Tumblr accepts NCII reports through its content removal form and through its DMCA agent. The platform's 2018 adult content ban remains in effect, which means NCII reports also benefit from policy enforcement against any sexual content. Source attribution to Undress.app is documented through undress, which strengthens the takedown notice and supports parallel legal action.

Choose your legal action

Undress.app on other platforms