コスパ良し
使いやすい
Free
In-App Purchases
About
Generate professional invoices, quotes, receipts, and other business documents quickly. Tailor documents to your country's specific tax rules and formats. Works offline with secure local data storage and optional cloud backup.
✓Create invoices, quotes, receipts, delivery notes, and purchase orders
✓Country-specific tax rules and formats
✓Add logo, stamp, and signature
✓Payment QR code integration
✓Client database and reusable items
✓Offline functionality and local data encryption
✓Bilingual documents and multi-currency support
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What's New in EasySeikyu
1.17.2
October 28, 2026
Improvements - Each section of the document editor now shows what is still missing (for example "1 left") and turns into a check mark once everything required is filled in. - Click or tap the client, line items, bank details or another part of the document preview to jump straight to that field in the editor. - The client, your business details and bank details now line up with the input fields, giving the editor a cleaner layout.
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Subscriptions & In-App Purchases
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
$17.991 Year
User reviews
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FAQ
Does EasySeikyu have ads?
No, EasySeikyu is ad-free, allowing for an uninterrupted user experience while creating your business documents.
What countries are supported by EasySeikyu?
EasySeikyu supports specific tax rules for the UK, Australia, Germany, Austria, France, Switzerland, and Japan. For other countries, you can set custom tax labels and rates.
Can I use EasySeikyu offline?
Yes, EasySeikyu works fully offline. All your data is stored locally with AES-256 encryption for privacy and security.
What subscription plans are available for EasySeikyu?
EasySeikyu offers a 'プラス月額プラン' for $1.99 per month and a 'プラス年間プラン' for $17.99 per year, providing access to premium features.
How often is EasySeikyu updated?
The latest version is 1.17.2, and the app was last updated on October 28, 2026. Updates typically address bug fixes and feature enhancements.
What devices can I use EasySeikyu on?
EasySeikyu is available on iPhone, iPad, iPod, and macOS devices, with real keyboard shortcuts for desktop use.
Can I add my company logo and signature to documents in EasySeikyu?
Yes, you can easily add your own logo, stamp, and signature to all generated documents in EasySeikyu to maintain brand consistency.
Does EasySeikyu support multiple languages?
Yes, EasySeikyu supports bilingual documents in 8 languages and multi-currency transactions with real-time exchange rates.
