Great App
Simplified for business needs
Free
In-App Purchases
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About
This app helps freelancers and small businesses create and send professional invoices quickly. It allows clients to pay instantly via payment links and offers features like payment plans, expense tracking, and real-time revenue insights.
✓Instant payment links via Stripe
✓Customizable invoice templates
✓Client payment plans
✓Expense tracking with receipt photos
✓Real-time revenue dashboard
✓Cloud sync across devices
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What's New in Seikyuu
1.0.2
December 10, 2025
Version 1.0.2 (Build 16) Bug Fixes & Improvements: - Fixed session handling that was causing unexpected logouts after app updates - Improved Stripe API key security with user-specific encrypted storage - Added security warning dialog when revealing sensitive API credentials - API keys now auto-hide after 30 seconds for enhanced security - Fixed issue where Stripe credentials could be incorrectly loaded between different user accounts - Optimized database row-level security policies for better performance - General stability improvements
MoreSubscription plans
Seikyuu Pro Month
Unlimited invoices, clients & payment links
$19.001 Month
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FAQ
What is Seikyuu?
Seikyuu is a smart invoicing app designed for freelancers and small business owners to create professional invoices, accept instant payments, and manage expenses efficiently.
How does Seikyuu help me get paid?
Seikyuu allows you to send invoices with integrated Stripe payment links, enabling clients to pay with one click using credit cards globally. It also provides automatic payment tracking.
Can I offer payment plans to my clients with Seikyuu?
Yes, Seikyuu offers a client financing feature that allows you to split invoices into installments and track the payment schedule for your clients.
What are the pricing plans for Seikyuu?
Seikyuu offers a Free Plan with limited features, a Pro Plan at $19.00/month or $190.00/year for unlimited use, and a Business Plan at $49.00/month or $490.00/year with additional features.
Does Seikyuu have ads?
No, Seikyuu is ad-free, ensuring a clean and uninterrupted user experience for managing your business finances.
What devices is Seikyuu available on?
Seikyuu is a universal app and works on iPhone, iPad, and Mac, allowing you to manage your business across multiple Apple devices.
How often is Seikyuu updated?
The latest version of Seikyuu is 1.0.2, and it was last updated on December 10, 2025, indicating regular maintenance and feature additions.
Is my financial data secure with Seikyuu?
Yes, Seikyuu uses bank-level encryption through Stripe certification and is GDPR & PCI DSS compliant, ensuring your data is secure and private.
