EasySeikyu: Invoice & Quote
Invoice, Quote & Receipt Maker
Free · In‑App Purchases
Create professional invoices, quotes and receipts in minutes - fully offline, no account needed, your data stays on your device.
Create professional invoices, quotes, receipts, delivery notes and purchase orders in minutes. No accounting knowledge, no sign-up.
BUILT FOR YOUR COUNTRY'S RULES
Pick your country once - tax names, rates, ID formats and bank fields switch to match:
- UK: VAT number, tax point, sort code
- Australia: "Tax Invoice" title, ABN, GST, BSB
- Germany, Austria & France: VAT ID, supply date, Factur-X / ZUGFeRD e-invoicing (EN 16931)
- Switzerland: MWST rates, UID, Swiss QR
- Japan: Qualified Invoice registration number
Anywhere else, set your own tax label and rates.
WHAT YOU GET
- PDF templates from classic to minimal
- Your own logo, stamp and signature
- Payment QR code from a Stripe or PayPal link
- Client database, reusable items, quote-to-invoice in one tap
- Status tracking, email templates and reports
- Bilingual documents in 8 languages, multi-currency with exchange rates
- IBAN, BIC/SWIFT and intermediary bank details
PRIVATE BY DEFAULT
Works fully offline. All data stored locally with AES-256 encryption. Optional backup to your own cloud storage. Your client and invoice data is never shared.
On iPhone, iPad, Android, macOS and Windows, with real keyboard shortcuts on desktop.
more Improvements
- The Project Name field now tells you clearly whether it is printed on the document.
- Month headings in document lists follow your app language.
- A cleaner membership card in Settings.
Bug Fixes
- For currencies with cents, tax is now calculated to 2 decimal places by default, so the per-rate breakdown and the total always match.
- Fixed several mistranslations in Korean, Vietnamese, Portuguese, Thai and English.
- Korean and Thai: documents now default to English, as PDFs can't display these scripts yet.
1.16.2 2d ago
Bug Fixes
- Fixed a rounding error that could make the tax amount and the total off by one when a discount was applied.
- The per-rate tax breakdown and the summary now always show the same tax amount.
- Fixed the client's department and contact name missing from the PDF templates.
- Fixed a duplicate sample client being created on first launch.
1.16.1 Sep 19
New Features & Improvements
- Modernized UI design with enhanced aesthetics and clarity.
- Improved layout and interaction across document lists, edit screens, and onboarding.
- Performance improvements and bug fixes.
1.16.0 Sep 16
Fixes
- When a document preview could not be generated, the app showed a blank grey area. It now explains what went wrong and offers a Retry button.
- Improved diagnostics for preview failures, so reported problems are easier for us to track down.
1.15.1 Sep 4
A brand-new look
- Every screen has been redesigned. Translucent materials and a reworked information hierarchy make your document, client and item lists readable at a glance.
- Dark mode has been rebuilt. Amounts and status badges were recolored so they stay legible against a dark background.
- List rows now adapt to the window width. On desktop, narrowing the window never drops the amount or the status, and the client name stays readable.
New: Pick your theme color
- Settings > Theme color lets you choose the app's accent from seven colors: Blue, Green, Sky, Emerald, Teal, Indigo and Graphite.
- Light mode and dark mode can be set independently.
- This is separate from the brand color used in your PDFs, so your documents look exactly as before.
Fixes
- Fixed being unable to add a line item from the item list.
1.15.0 Sep 3
New: Default due dates per document type
- You can now set a default deadline for each document type. It appears as "Valid until" on estimates, "Due date" on invoices, and "Requested delivery date" on purchase orders.
- Choose end of current month, end of next month, a number of days after the issue date, or no due date at all - so month-end billing terms work out of the box.
- Previously this setting lived deep inside Business info > Bank account and only affected invoices. It now lives in Settings > Document settings > Default due dates. Your existing setting is carried over unchanged.
- Purchase order PDFs now print the requested delivery date.
- Receipts and delivery notes no longer show a due date field, since they have no deadline.
Improvements
- The dedicated receipt layout now supports dual-currency and bilingual display. Previously it rendered in the primary currency and language even when those options were enabled.
Fixes
- Fixed documents getting mixed up, or the screen turning blank, when two different document types were open in separate tabs on desktop.
- Fixed deleted business profiles still being referenced by existing documents.
1.14.0 Sep 1
■ 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.
1.13.2 Aug 18
■ 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.
1.13.1 Aug 15
Improvements & Enhancements
1.13.0 Aug 7
Improvements & Enhancements
1.11.0 Jul 21
support for eu and qrcode
1.10.0 Jul 15
新機能・アップデート情報
- 書類のコピー・変換機能の改善
書類をコピーまたは変換(見積書から請求書など)する際、明細行データが共有されてしまう不具合を修正しました。コピーされた書類はそ
れぞれ完全に独立して編集いただけます。
- PDFスタイルのカスタマイズ強化
PDF上の割引項目にカラー設定を追加しました。また、PDFのフッター表示設定や小数点の表示方法も細かくカスタマイズできるようになりま
した。
- 入力・編集画面の操作性向上
顧客情報や自社情報の入力・編集画面をリニューアルし、よりスムーズかつ直感的に入力できるようになりました。
- Safe Document Copying & Conversion
Fixed an issue where duplicated or converted documents (e.g., Estimate to Invoice) shared item data. Cloned documents are now
completely independent and won't affect each other.
- Enhanced PDF Styling
Added support for custom colors on discount items. You can now also customize PDF footers and configure decimal display
preferences.
- Smoother Input Experience
Redesigned the Client and Business Info entry screens to make typing and managing your details faster and more intuitive.
1.9.9 Jul 4
NEW STYLE FOR receipt
Improvements & Enhancements
1.9.7 Jun 14
Improvements & Enhancements
1.9.6 Jun 10
Improvements & Enhancements
1.9.5 Jun 9
- メンバー情報の画像設定に対応しました。
- 決済画面を非フルスクリーン表示に最適化しました。
- Added support for setting custom images for members.
- Optimized the payment interface to a non-fullscreen display.
1.9.3 Jun 6
Improvements & Enhancements
1.9.2 Jun 2
Improvements & Enhancements
1.9.1 May 29
bugfix and product improvement
1.9.0 May 9
修正内容
・見積書に銀行口座が正しく表示されない問題を修正しました。
・UIの表示を最適化しました。
Bug Fixes & Improvements
・Fixed an issue where bank account information was not displayed correctly on quotations.
・Improved overall UI display.
1.8.9 May 8
▸ ドキュメントページにて、税込価格の表示設定をクイック編集できるようになりました。
▸ You can now quickly edit whether tax-included prices are displayed directly on the document page.
1.8.7 May 6
・商品備考の入力不具合を修正しました。
・設定ページの「書類設定」>「段数処理」に、ルール説明を追加しました。
・設定ページの「書類設定」に「明細行」タブを追加しました。
・「数量がすべて1の場合、数量列を非表示」に対応しました。初期設定はオフで、オンにするとPDFでは数量を表示しません。
・明細行の価格表示設定を追加しました。初期値は「税込価格」で、「税抜価格」も選択できます。
・Fixed an issue with product remarks input.
・Added a rule hint for Row Count Processing under Settings > Document Settings.
・Added a new "Detail Rows" tab under Settings > Document Settings.
1.8.6 May 2
UIの改善
画面レイアウトおよびビジュアルデザインを最適化し、操作性と視認性を向上させました。
商品の一括インポート/エクスポート
複数商品のデータを一括でインポート・エクスポートできる機能を追加しました。商品管理の作業効率が大幅に向上します。
起動速度の最適化
アプリの起動処理を改善し、起動時間を短縮しました。
UI Improvements
Optimized screen layout and visual design for better usability and readability.
Bulk Product Import / Export
Added support for bulk importing and exporting product data, significantly improving efficiency in product management workflows.
Startup Performance
Improved app initialization to reduce startup time.
1.8.5 Apr 29
UIの改善
画面レイアウトおよびビジュアルデザインを最適化し、操作性と視認性を向上させました。
商品の一括インポート/エクスポート
複数商品のデータを一括でインポート・エクスポートできる機能を追加しました。商品管理の作業効率が大幅に向上します。
起動速度の最適化
アプリの起動処理を改善し、起動時間を短縮しました。
***
UI Improvements
Optimized screen layout and visual design for better usability and readability.
Bulk Product Import / Export
Added support for bulk importing and exporting product data, significantly improving efficiency in product management workflows.
Startup Performance
Improved app initialization to reduce startup time.
1.8.4 Apr 28
単位と単価と合計がバラバラで設定は可能になります
1.8.3 Apr 23
Improvements
- The Project Name field now tells you clearly whether it is printed on the document.
- Month headings in document lists follow your app language.
- A cleaner membership card in Settings.
Bug Fixes
- For currencies with cents, tax is now calculated to 2 decimal places by default, so the per-rate breakdown and the total always match.
- Fixed several mistranslations in Korean, Vietnamese, Portuguese, Thai and English.
- Korean and Thai: documents now default to English, as PDFs can't display these scripts yet.
more Version 1.16.2 2d ago
Data Not Collected The developer does not collect any data from this app.