Terms

The rules for using Otowa and what you get when you buy something, in plain words.

Who can use Otowa

Otowa is for people aged 13 and older. Mature content appears only for learners who say they're 18 or older and turn it on. Use it for your own learning, and don't try to break it, copy its content in bulk or get around what's paid for.

What's free and what's sold

Ranks F to D, the first chapter of every realm and everything you need to practise are free. Later ranks, bundles, later realm chapters, episode packs and outfits are one-time purchases, at the prices on the pricing page, in US dollars. There's no subscription and nothing renews.

What you get when you buy

  • A purchase belongs to your account and unlocks on every device you sign in to. You need an account to buy, and you keep what you bought for as long as Otowa runs.
  • Ranks open as they're finished. If you buy a rank or a bundle before all of it is out, the rest unlocks as it arrives, at no extra cost.
  • The Founding Adventurer bundle is sold only until the public launch, or until 1,000 are sold.
  • Shizuku's 18+ outfits are for adults only. They're shown and sold to an account only after you ask us at help@otowa.app and we switch them on. They never appear on kana charts or wallpapers.
  • Payments are handled by Tap Payments. We never see or keep your card details.

Refunds

A full refund within 14 days, for any reason. See the refund policy.

If Otowa changes or closes

We improve lessons over time, so a line or a lesson you bought may change. If Otowa ever closes, we'll tell learners with accounts at least 60 days ahead.

Contact

help@otowa.app. See also the privacy page.

Last updated 9 November 2026.