Nastia AI review: private companion, hidden prices and strict deepfake rules

Nastia AI is an adult companion app from Nastia Cybernetics, a company in France. You build one companion, then chat one to one or in group chats with several AI characters, receive voice messages and make images or short videos in a separate generator.

Everything stays private. There is no public catalog, feed or gallery, so you never see other people's characters, and nothing you make is shown to them.

Nastia does not show plan prices before sign-up. The home page FAQ says the free tier has daily messages and basic features with no card, and that unlimited messages, voice chat and image generation need a paid plan.

The terms say you pay in US dollars and plans renew until you cancel. Purchases are non-refundable unless the law requires a refund or a technical error stopped delivery. The help center lets you pause, switch between monthly and yearly, or cancel and keep access to the end of the period.

We went through the five-step builder without an account: gender, look, your own personality, interests and whether you want realistic or anime pictures, then a name for the companion. To keep her you must register with Google, Discord, Apple or email. Our email sign-up stopped at a Cloudflare "Verify you are human" box, and we do not solve CAPTCHAs, so we could not chat, count free messages or see prices inside.

The generator works from text prompts, preset poses and face references. A face reference can only be one of Nastia's own generations for your companion, and the service does not accept uploaded photos. Prompts that name public figures are refused, and outputs pass an automatic safety check. That makes Nastia one of the few services here that rules out deepfakes of real people by design.

The terms limit Nastia to adults. In most countries you confirm you are over 18; where local law demands more, an outside provider runs a face estimate, card check or ID check and Nastia gets only a yes or no. The Content Rules ban anything that suggests a person under 18, including "aged-up" characters, as well as real people, non-consent and incest.

The privacy policy says your chats are used to improve the service, including reply quality, and data goes to providers for hosting, AI, payments, analytics and advertising. Nastia says it does not sell personal information. Deleting the account is immediate, but you must cancel any membership first, and records of rule breaks can be kept for up to 7 years.

Pick Nastia if you want one private companion with adult chat and media, and you care that the service refuses uploads and real-person prompts.

Skip it if you want to see prices before you sign up, browse a community catalog, or use a native mobile app.