
About
Create professional invoices, quotations, receipts, and more with this intuitive business document app. Supports multiple languages, currencies, and is compliant with Japan's Qualified Invoice System. Offers secure data syncing or offline use.
What's New in EasySeikyu かんたん請求
1.13.2
August 18, 2026
■ New: AI Link (desktop only) ・AI apps such as Claude Desktop can now read your EasySeikyu documents, clients and items. Ask for revenue summaries or a list of overdue invoices in plain conversation. ・Any data change proposed by AI goes into an approval queue. Nothing in your data changes until you review and approve it in the app. ・AI can also draft emails such as payment reminders. It never sends them — review the draft and send it yourself from your own mail app. ・All communication stays on this computer. Your billing data is never sent anywhere. ・Turn it on from Settings > AI Link. ■ Improvements ・Date fields can now be typed directly. Formats like 2026/8/13 and 20260813 are accepted, and unrecognised dates are flagged immediately. ・Closing a document now asks "Keep editing / Discard / Save". You are now warned even if you only entered a number, date, subject or note. ・New items now take the standard tax rate of your configured country. Reordering the item list no longer changes the default. ・You can now select several items at once and add them all to a document. ・On desktop, adding line items now uses a floating panel. Add items one after another while watching the document, and drag them to any position. ・Reworked the first-run setup screens. ■ Fixes ・Fixed the loading spinner never stopping when PDF generation failed. ・Fixed image files being left behind when deleting several items at once.
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プラス年間プラン
プラス機能を年間利用できる、お得な長期プラン
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FAQ
What business documents can EasySeikyu create?
EasySeikyu allows you to create professional invoices, quotations, receipts, purchase orders, and delivery notes. It is designed for ease of use, enabling quick generation of these essential business documents.
Does EasySeikyu support international business?
Yes, EasySeikyu offers multi-language and multi-currency support, making it suitable for international business transactions. It also facilitates international transfers through its bank account management features.
Is EasySeikyu compliant with Japanese invoicing regulations?
Yes, EasySeikyu is fully compliant with Japan’s Qualified Invoice System (Invoice制度) and Electronic Bookkeeping Law. This ensures your business documents meet legal requirements in Japan.
Can I use EasySeikyu offline?
Yes, you can work fully offline with EasySeikyu. Alternatively, you can sync your data securely via Google Drive for backup and access across devices.
How does EasySeikyu handle payments and subscriptions?
EasySeikyu is free to download and use, with optional subscription plans available for enhanced features. The 'プラス' plans offer monthly ($1.99) and annual ($17.99) options.
What are the benefits of the 'プラス' subscription for EasySeikyu?
The 'プラス' subscription likely unlocks advanced features or removes limitations present in the free version. Specific details on these benefits would be available within the app's subscription section.
Does EasySeikyu have ads?
No, EasySeikyu does not contain advertisements. The app focuses on providing a clean and uninterrupted user experience for creating business documents.
How often is EasySeikyu updated?
The latest version of EasySeikyu is 1.9.2, and it was last updated on June 2, 2026. This indicates a commitment to regular updates and improvements.




