Pi is a personal AI for everything. Bliss is there for calm.

Is Pi still available?

Yes. In October 2026 Pi, from Inflection AI, Inc., is on the App Store as "Pi, your personal AI", free, and was updated that month. Inflection's website describes Pi as "a personal intelligence partner" and links to it at pi.ai.

What is the difference between Pi and Bliss?

Pi introduces itself as "your personal intelligence partner". Its App Store listing describes talking through difficult topics, learning and practising languages, making decisions and plans, brainstorming and open questions. It has a voice mode, with hands-free and tap-to-talk settings, and it says it "grows with you" the more you talk.

Bliss is the voice companion in CalmSpace.ai, a calm app for iPhone, Apple Watch and the web. She talks with you about worry, stress and sleep, remembers what matters to you, and can open a breathing exercise, a sleep story or a meditation in the middle of the conversation. She is not a therapist and not a medical service.

How do CalmSpace and Pi compare?

	CalmSpace.ai	Pi
What it is for	Everyday calm: worry, stress, sleep	Talking things through, learning, decisions, brainstorming
Voice	Talk to Bliss out loud, or type	Voice mode, hands-free or tap to talk
Memory	"What Bliss remembers": see, pin, correct, mute or delete; "Forget everything"	Says it "grows with you"; how you view or delete what it learns is not stated on its App Store page
Calm tools	Breathing (alone or with up to 6 people), sleep stories and sounds, meditations, yoga, journal, mood check-ins	Not described on its App Store page
Where it runs	iPhone, Apple Watch, the web. No Android app.	iPhone, iPad and Apple Vision (App Store), and pi.ai on the web
Languages	English and Spanish	English (App Store)
Price	Free tier (10 minutes of voice a day); Premium USD 12.99 a month or 59.99 a year	Free on the App Store (rated 18+)

What does Pi do better?

• It is free. The App Store lists Pi as free. CalmSpace limits free voice to 10 minutes a day.
• It covers more ground. Pi is happy to help you learn a language, plan a week or brainstorm an idea. Bliss stays with calm, stress and sleep.
• iPad and Apple Vision. Pi runs there; CalmSpace runs on iPhone, Apple Watch and in a browser.

What does CalmSpace do differently?

• Talk and then do. When a conversation calls for it, Bliss opens a breathing exercise, a sleep story, calm music or a meditation, inside the same app.
• Memory you can read. You see what Bliss remembers and can correct, mute or delete it.
• Sleep. Sleep stories in English and Spanish, 25 sleep sounds and 10 mixes, and a gentle morning alarm.
• Calm with others. Breathe together with up to 6 people from one link, or set up a weekly circle.
• Apple Watch. Breathing paced by your heart rate. If you turn it on, Bliss can notice whether your heart rate is climbing or settling while you talk. Nothing is stored.
• Crisis lines. If a conversation sounds like a crisis, Bliss points you to crisis lines for your country. CalmSpace is not an emergency service.

Which one should you pick?

Pick Pi if you want a free, general AI to think out loud with about anything.

Pick CalmSpace.ai if you want a companion for the hard moments of a day, and the tools to calm down and sleep in the same place.

Where do these facts come from?

Pi's details come only from official pages, checked October 2026: Pi on the App Store and inflection.ai. pi.ai itself could not be read by our checker, so nothing here comes from it. Where those pages do not say something, we say so or leave it out. CalmSpace's details are from the app as of version 1.11.0, October 2026.

Frequently asked questions