Help

Account and plans

Taiyaku starts free. You can subscribe to a paid plan and cancel it at any time.

What the free plan includes

Once you verify your email address, the free plan includes, every month:

  • 30,000 characters of web page, text and subtitle translation.
  • 20 PDF pages.
  • 10 minutes of audio translation.
  • 30 knowledge-card lookups.

Until your email address is verified, the limits are lower. Open the link in the email we sent you.

Usage resets on the 1st of every month (Japan time). Reaching a limit never adds charges automatically. See this month’s usage under “Plan & billing” in account settings.

Subscribe to a paid plan

There are two paid plans: Basic (¥980/month or ¥9,800/year) and Pro (¥1,980/month or ¥19,800/year), prices in JPY including tax. Both use the same high-accuracy AI model; they differ in allowances and features.

  1. On Pricing, choose monthly or yearly billing.
  2. Click “Choose Basic” or “Choose Pro”.
  3. Enter your payment details on Stripe’s checkout page. Your plan is active as soon as the payment goes through.

You need to verify your email address before subscribing.

You can pay by credit card (Visa, Mastercard, American Express, JCB and more), Apple Pay or Google Pay. Stripe keeps your card details; we never store them.

Academic discount (students and staff)

Students, faculty and staff with an email address ending in .ac.jp (universities, colleges and research institutes in Japan) get paid plans at half price (50% off).

  1. In Account settings, under Plan & billing › Academic discount, enter your .ac.jp address.
  2. Open the link in the email we send to finish verifying. If your account email is already a verified .ac.jp address, no email is needed.
  3. Subscribe to a paid plan and the discount is applied at checkout automatically. If you already subscribe, it applies from your next payment.

The discount lasts 12 months from when it is applied. Verification is valid for 12 months; verify again to keep the discount after that.

Change your plan

Upgrades take effect immediately and the difference is prorated. Downgrades apply from your next renewal date. Change your plan on Pricing or from “Manage billing” in account settings.

Cancel

  1. In account settings, under “Plan & billing”, click “Manage billing”.
  2. Cancel your plan in Stripe’s billing portal.

You keep your paid plan until the end of the period you paid for, then return to the free plan. We don’t give prorated refunds.

Deleting your account cancels a paid plan immediately; the rest of the period can no longer be used and isn’t refunded. To use it until the end of the period, cancel the plan first.

Receipts and invoices

Stripe emails you a receipt for every payment. Download past invoices any time from “Manage billing”.

Account settings

Change your display name and password, set up two-step verification and passkeys, link other sign-in methods, review signed-in devices or delete your account in account settings.

Still stuck? See Troubleshooting or email [email protected]. All help articles →