Pi

Name: Pi
Author: Pi

by Pi

Free plan AndroidiPhoneWeb

Visit Pi Alternatives Pricing

What Pi is

Pi is a free personal intelligence partner for emotionally intelligent conversations, available on the web and through iOS and Android apps. It is presented for venting, thinking out loud, preparing for difficult conversations, and chatting. Live voice conversations let users speak instead of typing. Pi can help set reminders and to-dos, learn topics and languages, brainstorm, and provide recommendations. Web search is supported. The listed Pi plan costs nothing, with no usage limits stated on the opened pages. File uploads and image generation are not supported. Pi runs Inflection-2 by default, and its Help Center says users cannot choose or switch models. Users can opt out of model training in Account settings. Full chat history can be downloaded, but individual chats cannot be exported. Accounts can be deleted in profile settings or by typing “!delete” in chat.

Who it suits

Pi suits people seeking conversational support, reflection, voice chats, planning help, learning, brainstorming, and recommendations. It is available to users who want a free web or mobile app.

What it does well

Free plan listed at 0.00 USD
Available on web, iOS, and Android
Live voice conversations supported
Reminders and to-dos available
Web search included

What to know first

No file uploads
No image generation
Users cannot switch models
Individual chats cannot be exported

Plans

Plan	Billed and limits	Price
Pi	No price or usage limits stated on the opened pages	Free

As pi.ai lists them, read 11 Oct 2026. The maker's own page has the final word.

Verdict

Pi focuses on emotionally aware conversation with voice, planning, learning, and search features at no listed cost. Consider its fixed model and chat-export limitation if those controls matter to you.

Facts from Pi's own pages

Account deletion: Users can delete their account in the service profile settings or by typing “!delete” in chat. · inflection.ai, 11 Oct 2026
Data export limit: Pi supports downloading full chat history but does not support exporting individual chats. · help.pi.ai, 11 Oct 2026
Data retention: Inflection AI says it generally retains Pi inputs for at most 15 days after user deletion and retains outputs indefinitely for limited purposes described in its Terms of Service. · inflection.ai, 11 Oct 2026
File uploads: No · pi.ai, 20 Sept 2026
Founded: 2022 · pi.ai, 28 Sept 2026
Free plan: Yes · pi.ai, 20 Sept 2026
Image generation: No · pi.ai, 20 Sept 2026
Learning and ideas: Pi is presented for learning topics and languages, brainstorming, and getting recommendations. · apps.apple.com, 11 Oct 2026
Maker: Inflection AI describes Pi as powered by its foundation models and custom fine-tuned models. · inflection.ai, 11 Oct 2026
Mobile apps: Yes · pi.ai, 20 Sept 2026
Model choice: Pi’s Help Center says users cannot choose or switch the model; it runs Inflection-2 by default. · help.pi.ai, 11 Oct 2026
Planning: Pi can help users set reminders and to-dos. · hey.pi.ai, 11 Oct 2026
Platforms: The maker directs users to Pi on the web and to downloads from the App Store and Google Play. · hey.pi.ai, 11 Oct 2026
Privacy controls: Users can opt out of model training in Account settings, according to Inflection AI’s privacy policy. · inflection.ai, 11 Oct 2026
Purpose: Pi is a personal intelligence partner for emotionally intelligent conversations. · hey.pi.ai, 11 Oct 2026
Support: Pi’s Help Center provides support articles, and the company lists [email protected] for app support. · help.pi.ai, 11 Oct 2026
Talk and reflect: Pi is presented for venting, thinking out loud, preparing for hard conversations, and chatting. · hey.pi.ai, 11 Oct 2026
Voice: Pi supports live voice conversations so users can speak instead of typing. · hey.pi.ai, 11 Oct 2026
Web search: Yes · pi.ai, 20 Sept 2026

Pi