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Screenshots

  • Seikyuu screenshot 1
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  • Seikyuu screenshot 3
  • Seikyuu screenshot 4

About Seikyuu

Seikyuu — Smart Invoicing, Get Paid Faster Run your business from your pocket with Seikyuu, the elegant invoicing app for freelancers and small business owners. PERFECT FOR: • Freelancers & consultants • Small business owners • Creative professionals • Service providers CORE FEATURES: GET PAID INSTANTLY • Send invoices with Stripe payment links • Clients pay with one click • Automatic payment tracking • Accept payments globally INVOICING MADE EASY • Create professional invoices in seconds • Track payment status in real-time • Customizable templates with your branding • PDF generation and email integration • Multi-currency support CLIENT FINANCING • Offer payment plans to clients • Split invoices into installments • Track payment schedule CLIENT & EXPENSE MANAGEMENT • Store client information and history • Snap photos of receipts • Categorize and track spending • Export for tax time INVENTORY & DASHBOARD • Manage products and services • Real-time revenue tracking • Cash flow insights and analytics • Visual charts and reports SMART FEATURES • Biometric security (Face ID/Touch ID) • Dark mode support • Cloud sync across devices • Data export (CSV, Excel) PRICING PLANS: FREE PLAN • 1 client, 1 invoice/month, 1 expense/month • Perfect for testing PRO PLAN - $19.00/month or $190.00/year • Unlimited clients, invoices, expenses • Stripe payment links • Client financing • Advanced analytics • PDF generation & email • Save $38/year with annual plan BUSINESS PLAN - $49.00/month or $490.00/year • Everything in Pro • Multi-user access (coming soon) • Advanced reporting & API access (coming soon) • Custom branding • Save $98/year with annual plan Subscriptions auto-renew unless cancelled. Cancel anytime in account settings or App Store. SECURITY & PRIVACY: • Bank-level encryption (Stripe certified) • Your data stays yours • GDPR & PCI DSS compliant • No ads, ever UNIVERSAL APP: One purchase works on iPhone, iPad, and Mac. WHY SEIKYUU? Unlike bloated accounting software, Seikyuu is designed for speed and simplicity. Create invoices in seconds, send payment links between meetings, get paid on the go. GET STARTED: 1. Download Seikyuu 2. Create your account 3. Add your first client 4. Send invoice with payment link 5. Get paid Download now and start for free. Stripe integration allows credit card payments worldwide. Free Stripe account needed (stripe.com). SUPPORT & LEGAL: Privacy Policy: https://www.seikyuu.com/privacy Terms of Service: https://www.seikyuu.com/terms Support: [email protected] By downloading, you agree to our Terms of Service and Privacy Policy.

What’s new

Version 1.0.2 · Updated 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

App privacy

The developer, Carlos Ramirez, reported these privacy practices to Apple.

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Contact Info: Email Address, Physical Address, Name, Phone Number
  • Financial Info: Payment Info
  • Identifiers: User ID

Used for: Analytics, App Functionality

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Looking for apps like Seikyuu? Here are 6 similar apps on the App Store. The highest rated is Payzli Ink (5.0/5), and all 6 are free to download.

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