When you use an AI companion app, you are not just having a conversation — you are creating a detailed personal record. Over weeks and months of use, these platforms collect your relationship status, mental health disclosures, sexual preferences, family conflicts, financial anxieties, and the specific texture of your emotional life. This data profile is arguably more intimate than what your doctor, therapist, or closest friend knows about you. The companies that operate these platforms have various policies about what they do with this information — some are transparent and GDPR-compliant, others are vague to the point of concern. In 2026, our editors conducted a systematic privacy review of six major AI companion platforms, reading their privacy policies in detail, testing their account deletion processes, and assessing their transparency around data use. The results should inform which platform you trust with your most personal conversations — or whether you should be using these platforms at all without precautions.
Why Privacy Matters More for AI Companions Than for Other Apps
Privacy matters for social media, email, and messaging apps — but AI companion apps create a uniquely sensitive data category. The issue is not just what data is collected, but the nature of that data. Users share with AI companions the things they cannot or will not say to people in their lives: relationship problems, mental health struggles, sexual desires, family trauma, financial fears. This is the proposition — a non-judgmental listener who holds your secrets. But every secret you share is being processed by, and typically stored on, external servers. The question of who can access that data, under what circumstances, and for how long is therefore more consequential than it is for most digital services.
There are four specific privacy scenarios that AI companion users should think about. First: data breach. If the company is breached, your intimate conversation logs could be exposed publicly. Second: law enforcement access. In jurisdictions where the content of your conversations could be legally sensitive, a subpoena to the company could produce your full conversation history. Third: sale or acquisition. If the company is acquired, sold, or goes bankrupt, your data may transfer to new ownership with different values and policies. Fourth: advertising and training. Some platforms use conversation data to train AI models or target advertising, even if they do not sell data to third parties in the traditional sense. Being clear-eyed about these risks does not mean refusing to use these platforms — it means using them with appropriate precautions.
Platform Deep-Dive: Replika and Nomi AI Privacy Practices
Replika is headquartered in San Francisco, California, and is subject to US law, California's CCPA (California Consumer Privacy Act), and GDPR for European users. Their privacy policy states that they do not sell user data to third parties. Conversation data is retained for the period of account activity plus a defined period after deletion. Account deletion is available in the app under Settings and processes within 30 days. Replika has been relatively transparent in their communications with users about data practices, particularly following the 2023 controversy when they faced significant user trust challenges and responded with more direct communication than is typical for the industry. Conversations may be used to improve the AI model, which is standard practice in the industry and typically involves anonymized or aggregated data rather than individually identifiable conversations. Encryption: Replika claims encryption in transit (TLS) and at rest. They have not had any publicly disclosed data breaches as of our review date. GDPR compliance includes data subject access requests and right to deletion. Overall privacy score: 7/10 — above average transparency for the category.
Nomi AI makes stronger encryption claims than Replika, stating end-to-end encryption for messages in its marketing materials. However, end-to-end encryption in the context of a service that needs to process your messages to generate AI responses is technically complex — true end-to-end encryption would mean the service could not read your messages to respond to them. What Nomi likely means is encryption in transit and at rest, which is the industry standard. Their privacy policy is written in reasonably plain language, which is better than many competitors. Data deletion is available and processes within 30 days per their policy. The company's operational jurisdiction and server location are less prominently disclosed than Replika's, which is worth noting for users with specific geographic privacy concerns. Overall privacy score: 6.5/10 — good practices but less transparency on infrastructure details.
Candy AI and DreamGF: The Privacy Transparency Gap
Candy AI represents a category of AI companion platforms where privacy transparency is significantly lower than the better-established players. The privacy policy is shorter than industry standards, uses vague language around data retention ("we keep data as long as necessary for the purposes described"), and does not provide specific timelines for deletion after account closure. The company's operational headquarters location is not prominently disclosed, which affects users' ability to determine which jurisdiction's privacy laws apply to their data. There is no clear statement about whether conversation data is used for model training. The registration process collects email and name without explicit explanation of how these are associated with conversation data. We note that this does not necessarily mean the company is doing anything improper — vague privacy documentation is unfortunately common, even among well-intentioned operators — but it makes meaningful privacy assessment impossible. Overall privacy score: 4/10 — insufficient transparency.
DreamGF claims GDPR compliance and EU data hosting, which if accurate would provide meaningful regulatory protection for EU users. Their privacy policy is more detailed than Candy AI's and includes language about data subject rights consistent with GDPR requirements. Data deletion requests are described with a 30-day processing timeline. The platform collects standard usage data, account information, and conversation logs. Like other platforms in this category, conversation data may be used to improve the AI service. The key uncertainty with DreamGF is verification — claiming GDPR compliance and EU hosting is easy; independent verification is difficult for a consumer review. EU users specifically might consider contacting the platform's data protection officer (who should be identifiable under GDPR requirements) to verify the specifics before trusting the platform with sensitive conversations. Overall privacy score: 6/10 — better policy language than Candy AI but verification remains uncertain.
Crushon AI and Character AI: Privacy at Scale
Crushon AI's privacy documentation is minimal — among the least transparent in our review. The privacy policy offers little specificity about data retention periods, server locations, or third-party data sharing. There is no clear data deletion mechanism described in the interface, and our testing of the deletion process required contacting support directly. For a platform where users share intimate content, this level of opacity is a significant concern. The platform has a large user base, which means any breach or policy change would affect many people. Until Crushon AI produces more transparent privacy documentation, we cannot recommend it for users with serious privacy concerns. Overall privacy score: 3/10 — insufficient transparency and poor account deletion access.
Character AI stands out from the other platforms in this review as a large, well-resourced technology company with more developed privacy infrastructure. Backed by significant investment and operating at scale, Character AI has more detailed privacy documentation, a clearer terms of service, and more transparent statements about data use than most competitors. Conversation data is used to improve the AI models — this is stated clearly rather than hidden. Account deletion is available and processes correctly. The trade-off is that because Character AI operates at scale, more data is being collected and processed by a larger organization with more potential vectors for data use. The company is subject to US law and applicable international regulations. Overall privacy score: 7.5/10 — most transparent and process-mature of the platforms reviewed, though the data use for model training is the clearest trade-off users accept.
Practical Privacy Tips: Using AI Companion Apps More Safely
Regardless of which platform you choose, these practices reduce your privacy exposure meaningfully. First: use a separate email address that is not linked to your primary identity. Create a free email with a service like ProtonMail or a Gmail alias that you use exclusively for AI companion registrations. This prevents your companion app usage from being linked to your main digital identity in the event of a breach or data sale. Second: use a pseudonym. You do not need to use your real name, and doing so creates an unnecessary identifier. Third: use a compartmentalized browser. Use a separate browser profile — or a browser you use only for AI companion apps — so that browser cookies, history, and autofill data from your companion platform do not interact with your main browsing identity. This also prevents cross-site tracking from linking your companion usage to other services.
Fourth: consider a VPN, particularly when using platforms with unclear server location policies. A VPN masks your IP address and, if using a reputable provider, prevents your internet service provider from seeing which services you access. Fifth: be cautious about the specificity of personal information you share. You do not need to give an AI companion your real name, employer, location, or other identifiers that could make conversation logs personally identifiable. The AI does not need to know your exact situation to be helpful — slightly anonymized sharing achieves the same emotional benefit with less exposure. Sixth: periodically review and purge your conversation history if the platform provides this option. Some platforms allow selective deletion of conversation threads, which lets you remove particularly sensitive exchanges while retaining the ongoing relationship context.
Frequently Asked Questions
Which AI companion app is the most private?
For cloud-based platforms, Character AI and Replika have the most transparent privacy documentation and clearest account deletion processes. For maximum privacy, a local AI setup (running a language model on your own computer via LM Studio or Ollama) is the only option where your conversations are guaranteed to never leave your device. No cloud-based AI companion platform can offer complete privacy because the service must process your messages to respond to them.
Can law enforcement access my AI companion conversations?
In most jurisdictions, yes — with appropriate legal process such as a court order or subpoena, law enforcement can compel an AI companion company to produce conversation records they hold. This is true for any cloud service that stores user data. If the content of your conversations could be legally sensitive in your jurisdiction, this is a material consideration. Using a local AI setup eliminates this concern since there is no third-party holding your data.
Do AI companion apps sell my conversation data?
The major platforms (Replika, Character AI) explicitly state that they do not sell user conversation data to third parties. Smaller or less transparent platforms make similar claims in their privacy policies, though with less verifiable specificity. "Not selling data" does not mean conversations are not used for AI model training or analyzed internally — most platforms reserve this right in their terms. Reading the specific language of the privacy policy for any platform you use seriously is worthwhile.
What happens to my conversations if an AI companion company closes or is sold?
This depends on the platform's privacy policy and the terms of any acquisition or closure. If a company is acquired, data typically transfers to the new owner — who may have different privacy practices. If a company closes, data may be deleted or transferred to creditors in bankruptcy proceedings. This risk is one argument for being selective about what information you share on newer, less-established platforms, and for periodically exporting or noting important conversation content you want to preserve.
How do I delete my account and data from an AI companion app?
Process varies by platform. Replika and Character AI both have in-app deletion under Settings. Nomi AI also has in-app deletion. Crushon AI required contacting support directly in our testing. Candy AI's process is not clearly documented in the app. For any platform, after requesting deletion, you should receive confirmation and the deletion should process within 30 days under GDPR (for EU users) or within a stated timeline from the platform. If you do not receive confirmation, follow up via email and document your requests in case you need to escalate.
Conclusion
Privacy in AI companion apps is not one-size-fits-all, and no cloud-based platform offers zero risk. The platforms with the best privacy practices in 2026 are Character AI (most transparent documentation) and Replika (most established deletion process and CCPA/GDPR compliance). Platforms like Crushon AI and Candy AI have meaningful transparency gaps that should give privacy-conscious users pause. Whatever platform you choose, the practical tips in this review — separate email, pseudonym, compartmentalized browser, selective information sharing — go a long way toward protecting your privacy regardless of the platform's own practices. For a current ranking of AI companion platforms that includes privacy as one of the evaluated criteria, alongside conversation quality, features, and value, our independent editorial team covers everything in one place.