Frequently asked questions

The questions people ask before subscribing.

• Does SumTube access my YouTube watch history?+

  No. SumTube touches only the URL and public caption track of the video you explicitly click the summarize button on. It never reads your watch history, subscriptions, or Google account.

• Can SumTube summarize videos without captions?+

  Not today. Running our own audio ASR on videos with no captions would hurt Japanese quality and raise unit cost, so MVP supports videos with at least auto-generated captions.

• How many videos can I summarize per day?+

  Free gives you 3/day, Basic (¥480/month) 30/day, and Pro (¥980/month) is effectively unlimited. Every new account gets Pro-equivalent access for the first 3 days as a reverse trial.

• Can I get a Japanese summary from an English video?+

  Yes — cross-language summarization is a Pro feature. On MVP Basic and Free, summaries are produced in the transcript's own language.

• How do I cancel?+

  Open Settings → Billing and follow the link to Stripe Customer Portal — one click cancels. Paid features remain active until the end of the current billing period.

• Can I issue a qualified invoice (Japanese consumption tax)?+

  Yes. Invoices issued through Stripe Tax include our registered T-number and are eligible for Japanese consumption-tax deductions when used B2B.