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SOPHIA

Pricing

Start free. Subscribe when you want the full desk.

Curious Thinker costs nothing. Philosopher's Desk is one monthly subscription — students with a .edu or .ac.uk email save 25% with code STUDENT25.

SOPHIA coaches reasoning on work you wrote — it does not write assignments or essays for you.

What's included

Free

Curious Thinker

Free

Everything you need to try SOPHIA properly — no card required.

Most popular

Philosopher's Desk

From £5 / month

The complete study and reflection workflow in one subscription.

Billed monthly · cancel any time

Learn micro-lessons 2 per month UnlimitedShort-answer reviews 1 per month UnlimitedEssay feedback (your drafts) Not included 10 per monthStoa journal & habits Included IncludedText mentor Light use IncludedVoice mentor Subscription only IncludedAdvanced Inquire (optional) Starter access Full access

Billing notes

  • One free tier and one paid subscription — Philosopher's Desk.
  • Students (.edu / .ac.uk): use code STUDENT25 for 25% off at checkout.
  • Payments and taxes are handled by Paddle as Merchant of Record.

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