Choose Your Plan

Select the plan that best fits your learning journey

Free

Read the entire public library for free, ad-supported, with daily AI and monthly text-to-speech quotas.

AI Models(Flash)
Detailed Responses
Works(Unlimited)
AI Flash/day(50)
Text-to-Speech/month(300)
Communities(Unlimited)
Storage(200MB)
Ad-free
Priority Support

Pro

…

Premium AI models, higher daily AI and monthly TTS limits, 5 GB storage, ad-free reading, and priority support.

AI Models(Flash + Pro)
Detailed Responses
Works(Unlimited)
AI Flash/day(500)
Text-to-Speech/month(1,500)
Communities(Unlimited)
Storage(5GB)
Ad-free
Priority Support

What exactly are you paying for?

Epoche sells exactly one product: the Epoche Pro subscription — a recurring digital-service plan for this web application. There are no physical goods, no one-off purchases, and no in-app currency.

Free (no charge)

The entire public library of public-domain classics is free to read for everyone, supported by ads. A free account also includes a daily AI-assistant quota and a monthly text-to-speech quota at no charge.

Epoche Pro (the paid subscription)

Premium AI models for the reading assistant, dictionary, and translation tools
Higher daily AI-assistant limits and a larger monthly text-to-speech quota
5 GB of storage for importing your own documents (PDF, EPUB, and more)
Ad-free reading across the site
Priority support

US$9.99 per month or US$99 per year (2 months free), billed in US dollars by Stripe with applicable tax added at checkout. Every new subscription starts with a 14-day free trial.

Accepted payment methods

VisaMastercardAmerican ExpressJCBDiscoverDiners Club

Secure payments powered by Stripe

Prices shown are net of tax. Stripe Tax automatically calculates and adds the applicable consumption tax / VAT / GST at checkout based on your billing country (e.g. 10% Japan consumption tax, 20% UK VAT, EU member-state VAT, 10% Australian GST).

Paid plans renew automatically each billing period until cancelled. You can cancel anytime from your profile settings; cancellation stops future renewals (no partial-period refunds). A 14-day free trial applies to new subscriptions — your first charge is at trial end.