Pi review

Pi is the simplest choice for adults who want someone to talk to without a character, avatar or subscription. Inflection AI describes it as a personal intelligence partner for talking things out, preparing for hard conversations, venting, making decisions and practicing a language, and it has a voice mode for live conversation. It grows with you as you talk, according to the App Store listing, and logged-in users keep chat history past 60 days. The US App Store lists it as free with no in-app purchases, and the web version at pi.ai starts with a sign-up for free. The downside is depth. There are no selfies, group chats, custom characters or memory controls, and Inflection publishes little about how much it remembers. The app is still updated, with a release in early November 2026. Think of Pi as a calm sounding board, not a full companion.

Who it is for

People who want a kind, free conversation partner without avatars, romance or subscriptions.

Price

Free; no paid plan is listed.

Sign up for free
Quoted from the vendor pricing page on November 10, 2026.

Key features

• Voice mode for live conversation
• Help preparing for hard conversations or venting
• Decision-making and action plans
• Topic learning and language practice
• Recommendations and brainstorming

Strengths and weaknesses

• Strength: Free, with no in-app purchases in the US App Store
• Strength: No avatars or romance features, so it stays a conversation partner
• Strength: Simple to start in a browser
• Weakness: Fewer companion features: no selfies, group chats or custom characters
• Weakness: Chat history past 60 days requires logging in
• Weakness: Inflection publishes little about memory depth

Key facts

• Price: Free; the US App Store shows no in-app purchases
• Developer: Inflection AI, a Public Benefit Corporation
• Chat history: Log in to save history past 60 days
• App Store rating: 4.4 from about 2.5K ratings, age rating 18+

Where it ranks

Pi is No. 6 in our Best AI Companion Apps verdict.