Pi vs Therly AI
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Pi is completely free, while Therly AI is freemium.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Empathetic conversation style
- Spoken replies
- Multiple voices
- Conversation history
- Mobile apps
- 24/7 text support
- Long-term memory
- Voice sessions
- Mood check-ins
- Self-help tests
| Feature | Pi | Therly AI |
|---|---|---|
| Best for | Inflection's friendly, conversational assistant for talking things through | Anonymous AI chat companion for stress and emotional support |
| Category | Chat assistants | Chat assistants |
| Pricing model | Free | Freemium |
| Starting price | Free | $12.99/mo |
| Free plan | Yes, fully free | Yes |
| Made by | Inflection AI | Therly AI |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Pi is completely free, while Therly AI is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Basic
Free
- 1 trial session
- Basic state check-in
- Short context memory
Pro
$12.99/mo
- Unlimited text chat
- Long-term session memory
- Advanced model
- Trial voice chat
Ultra
$19.99/mo
- Everything in Pro
- 45 voice-session minutes
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Pi
- Pleasant, supportive tone
- Good voice experience
- Free with no subscription
- Weak for research or coding
- Slower development than rivals
- Not a replacement for therapy
Therly AI
- Anonymous and available anytime
- Remembers earlier conversations
- Voice option for harder days
- Not a replacement for real therapy
- Free plan is a single trial session
- Voice minutes are capped
Which one should you choose?
Choose Pi if you want:
- Pleasant, supportive tone
- Good voice experience
- Free with no subscription
Watch out: weak for research or coding.
Choose Therly AI if you want:
- Anonymous and available anytime
- Remembers earlier conversations
- Voice option for harder days
Watch out: not a replacement for real therapy.
Pi vs Therly AI FAQ
What is the difference between Pi and Therly AI?
Pi: Inflection's friendly, conversational assistant for talking things through. Therly AI: Anonymous AI chat companion for stress and emotional support. Both are chat assistants tools.
Is Pi or Therly AI cheaper?
Pi is completely free, while Therly AI is freemium.
Do Pi and Therly AI have free plans?
Pi: Yes, fully free. Therly AI: Yes.
Who makes Pi?
Pi is made by Inflection AI, based in United States.
Who makes Therly AI?
Therly AI is made by Therly AI.
Which should I choose, Pi or Therly AI?
Choose Pi if you value pleasant, supportive tone and good voice experience. Choose Therly AI if you value anonymous and available anytime and remembers earlier conversations.