Pi AI Review: Memory, Voice, Privacy, and Fit

10 min read · Updated September 5, 2026 · Pi sources checked September 1, 2026

This Pi AI review finds conversational reflection with editable cross-chat memory and voice input and output across mobile and web. Choose Pi when those controls and spoken access are the priority. Inflection describes it as a personal AI assistant, and its current help pages document a visible memory list that users can add to, update, or clear.

Choose Nola for ongoing emotional support that moves from talking to a relevant in-app tool. Developed through years of work with psychologists, Nola combines relevant memory and pattern noticing with questionnaires, breathing exercises, guided meditations, and EMDR audio. The app can recommend a tool from the conversation, so there is no separate library search at the moment it is needed.

The Pi AI review verdict

Pi is best suited to gentle conversational reflection with editable cross-chat memory and broad voice access. Inflection calls it a personal AI assistant. The product now keeps selected lasting facts, gives users direct memory controls, and documents voice input and spoken output on the major consumer platforms.

Nola is the stronger choice when the job is ongoing emotional support with a next step beyond conversation. Pi's official materials establish a personal assistant with conversation, voice, and memory. Nola is purpose-built to connect emotional continuity with practical tools.

Pi AI compared with Nola

This compares documented features and policies, not conversation quality, memory accuracy, or emotional outcomes.

Is Pi AI still available?

Yes, based on the current first-party record reviewed on September 1, 2026. Pi's help center has current setup instructions for Android, iOS, and web voice. Its memory page is dated July 31, 2026, and the privacy policy is dated August 11, 2026. Those pages describe a live consumer service rather than a historical product.

This availability note does not imply store ranking, download volume, regional access, or future availability. Confirm the relevant app or web access in your location before depending on it.

Pi AI memory is new, visible, and editable

Pi says its memory focuses on information that remains useful for future conversations: names, family details, food preferences, hobbies, work or study, communication preferences, and ongoing goals or habits. It is designed to skip temporary plans and one-off events.

There are two ways to control it. In conversation, a user can ask Pi to remember a fact or forget one. In Settings, under Account and Manage Memories, the user can add, delete, or update the saved items directly. That visibility matters. Memory is easier to trust when you can inspect the short list the product intends to carry forward.

The documentation also gives a useful limitation: a user may have to repeat an instruction to make a memory stick. Nothing in the official sources supports perfect or complete recall. The right conclusion is that Pi has configurable continuity, not that it remembers everything. The guide to AI companions with memory compares this approach with other documented memory systems.

Pi AI memory controls

Pi's help page names a Manage Memories screen and lets users add, update, and delete specific remembered details. Nola uses relevant cross-conversation context and can notice recurring patterns in what a user shares. These are different strengths: Pi emphasizes direct memory inspection, while Nola uses continuity inside an emotional-support flow that can lead to an appropriate in-app tool.

Pi AI voice and conversational access

Pi documents voice on Android, iOS, and web. Mobile users grant microphone and speech permissions; web users turn Voice On and confirm the correct microphone and speakers. The help page describes both speaking to Pi and hearing Pi's responses, so this is broader than dictation alone.

Nola supports voice input through a microphone control. Pi documents both voice input and spoken output. If hearing replies while walking is central to the decision, Pi has the clearer documented voice fit.

What it does not establish is commercial entitlement. The voice instructions do not say whether voice belongs to a current free plan, a paid plan, or a usage allowance. Access instructions and pricing evidence are different things, and this review does not blend them.

Pi AI pricing: no verified current terms

The reviewed first-party sources do not publish a current Pi free plan, paid plan, subscription entitlement, or dollar price. That may feel surprising because Pi is easy to encounter as a consumer product, but a decision page should not turn product availability into a price claim.

Check the live interface for current access, plan limits, and any checkout shown to your account. If cost is the main filter, use the guide to confirmed free AI emotional-support starting points.

Pi AI privacy and model-training controls

Pi's August 2026 privacy policy says inputs can include text, voice, audio, and other materials. It says information is used to provide, maintain, and improve the services, including developing and training the models that power them. Users can opt out of model training in Account settings.

The policy also says Pi may use inputs to infer emotional state, tone, sentiment, or other characteristics. A separate account setting lets users opt out of using voice to infer emotions. Those are meaningful controls, but the default collection and use still deserve attention before sharing sensitive material.

Inflection says it does not engage in sales or sharing of personal information or targeted advertising as those terms are defined by US state privacy laws. It lists service providers for hosting, cloud storage, security, content moderation, marketing, measurement, and support, along with disclosures for legal process and corporate transactions.

For a field-by-field way to review these terms, use the AI companion privacy checklist. Training choice, derived emotion data, message deletion, retention, and third-party processing are separate questions.

Deletion and retention need a careful read

Pi's current privacy policy says users can delete individual messages, which are removed immediately from conversation history. Users can also delete their information through the Account page or by typing !delete in chat. This newer dated policy supersedes an older help answer that said partial deletion was unavailable.

Deletion from the visible history is not the whole retention story. Pi says deleted inputs are generally retained for no more than 15 days, with longer exceptions for fraud, abuse, security, legal requirements, and financial records. It also says outputs are retained indefinitely for limited purposes described in its terms.

That indefinite output statement is the sharpest privacy drawback in the reviewed evidence. An output can reproduce personal information supplied in an input, and the policy itself warns that this can happen. A reader deciding whether to share something highly identifying should consider both the control and the retention language, not just the delete button.

Category limits: Pi is a personal assistant

Inflection describes Pi as a personal AI assistant and chatbot. That category can still support a warm, reflective conversation. Nola has a more purpose-built design around emotional patterns and linked support tools.

Pi is not presented in these sources as a configurable roleplay relationship. If that is what you want, a product such as Nomi or Replika belongs in a different comparison. The Nola vs Replika guide explains that choice, while Nola vs ChatGPT covers the general-assistant side.

Who should choose Nola instead

Choose Nola if you want a conversation-first emotional companion that can remember relevant context, notice repeating patterns, ask a useful question, and move into an appropriate tool without making you search a content library. The supported tool set includes questionnaires, grounding, box breathing, physiological sighs, psychologist-created guided meditations, EMDR audio, sleep stories, soundscapes, and night content.

Choose Pi if voice across devices and an editable memory list are more important than that purpose-built emotional flow. Pi's gentle assistant style, current cross-chat memory, and broad spoken access are real strengths. Nola is the clearer choice for the 2 a.m. spiral where words may need to turn into a calming or sleep action.

Nola is free to download and start, with some tools and unlimited conversations on a paid plan. Nola does not sell conversations or personal information. Nola does not use personal conversations to train generative AI models. Trusted AI infrastructure providers may process text and context to generate replies, and limited authorized human access may occur for the reasons listed in the privacy policy. See the safety page for product boundaries.

For the wider decision, see the AI companion apps comparison. It separates assistant breadth, relationship-style companionship, and purpose-built emotional support.

FAQ: Pi AI, answered

Is Pi AI still available in 2026?

Yes, based on current first-party documentation checked September 1, 2026. Pi's help center provides current instructions for using voice on Android, iOS, and the web, and its memory documentation was updated July 31, 2026.

Does Pi AI remember previous conversations?

Yes. Pi's July 2026 documentation says it remembers lasting details across chats. Users can add, update, and delete memories through Settings, and can also ask Pi to remember or forget information in conversation.

Can I talk to Pi AI by voice?

Yes. Pi documents voice input and spoken output on Android, iOS, and the web. Device permissions and audio settings are required. The reviewed sources do not tie that access to a documented current free or paid plan.

Can I stop Pi from using chats for model training?

Pi's privacy policy says information is used to develop and train its models and that users may opt out of model training in Account settings. It separately allows users to opt out of voice-based emotion inference.

Is Pi AI or Nola better for emotional support?

Choose Nola for ongoing emotional support developed with psychologists, with relevant memory and in-chat access to questionnaires, breathing exercises, guided meditations, and EMDR audio. Choose Pi when editable memories and spoken access across mobile and web are the priority.

Sources checked September 1, 2026

Pi claims were checked against its first-party memory guide, voice guide, deletion guide, privacy policy, and Inflection's model-training notice. Nola claims were checked against the current product, privacy, and safety pages. No current Pi commercial terms or price were confirmed. See Nola’s toolkit and the people who create and narrate its sessions.