These terms apply to Meteorium ("the App"), provided by Avellsky, and to its subscription, Meteorium Pro.
| Plans | Monthly ¥200 / Yearly ¥2,000 on the Japanese App Store and Google Play; elsewhere, the price your store shows. |
|---|---|
| What it includes | The dust trails of every meteor shower, the IAU MDC observed orbits (real data), forecasts for 2026–2035, and export of images, video and data. The Pro data (about 275 MB) is downloaded after purchase. The paper's published Leonid data can be used without a subscription. |
| Payment | Charged to your App Store (Apple ID) or Google Play (Google account) account when you confirm the purchase. |
| Auto-renewal | The subscription renews automatically for the same period at the same price unless cancelled at least 24 hours before the end of the current period. Renewal is charged within the 24 hours before the period ends. |
| Cancellation | Cancel at any time: on iPhone, iPad and Mac in Settings → your name → Subscriptions; on Android in Google Play → Payments & subscriptions. “Manage subscription” in the App opens the same page. After cancelling you keep access until the end of the current period. |
| Refunds | Handled under your store's policy. |
If you obtained the App from the App Store, Apple's Licensed Application End User License Agreement applies. If you obtained it from Google Play, the Google Play Terms of Service apply.
The App's forecasts are estimates from an orbital model. They do not guarantee that meteors will appear. Please read the confidence class and notes the App shows with each forecast.
See the Privacy Policy.
お問い合わせ / Contact: avellsky@gmail.com