LastCallAbout us
Last updated: July 16, 2026
The Windows tray reminder “LastCall” is developed and provided by the sole proprietorship “Ryusudo”.
| Business name | Ryusudo |
|---|---|
| Location | Shinjuku Dai-7 Hayama Bldg 3F, 1-36-2 Shinjuku, Shinjuku-ku, Tokyo 160-0022, Japan |
| Contact | [email protected] |
| Business | Planning, development, and sale of software |
| Products | LastCall (a Windows tray reminder; Free edition + paid edition) |
| Payment provider | Payments, billing, and receipts for the paid edition are handled by Microsoft (Merchant of Record) for both Microsoft Store one-time purchases and Microsoft Marketplace licenses. |
About transactions: The paid edition is available via the Microsoft Store (one-time) for individuals and Microsoft Marketplace for organizations. Volume licensing, multi-year terms, and custom pricing can be arranged through Marketplace private offers. Quotes can be generated instantly on our quotation page, and payment by invoice is supported via Microsoft billing or a reseller (CSP) — we do not extend credit or trade terms directly. For individual enquiries, please reach out via our contact address.
1Related pages
Terms of Use (license terms)
Privacy Policy
Support policy
Changelog