# Seikyuu — Invoice & get paid instantly

> Elegant invoicing and payment app for freelancers and small businesses. (iPhone/iPad app by Carlos Ramirez.)

- Source: https://appshunter.io/ios/app/seikyuu/id6753657899 (this page in markdown: same URL + `.md`)
- Developer: [Carlos Ramirez](https://appshunter.io/developer/1844215160)
- Category: Business, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 28 MB
- Languages: American English
- Released: 2025-12-08
- Data updated: 2026-07-02
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/seikyuu/id6753657899/reviews.md

## What is 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: info@creativitech.co

By downloading, you agree to our Terms of Service and Privacy Policy.

## Key features

- Instant payment links via Stripe
- Customizable invoice templates
- Client payment plans
- Expense tracking with receipt photos
- Real-time revenue dashboard
- Cloud sync across devices

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Seikyuu Pro Month | $19.00 | per month |
| Seikyuu Pro Year | $190.00 | per year |
| Seikyuu Business Year | $490.00 | per year |
| Seikyuu Business Month | $49.00 | per month |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/seikyuu/id6753657899/reviews.md

### 5/5 — Great App

*2025-12-09*

Simplified for business needs

## Frequently asked questions about Seikyuu

### 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.

## Version history (last 3 releases)

### 1.0.2 — 2025-12-10

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

### 1.0.1 — 2025-12-09

Bug Fixes & Improvements

  • Fixed an issue that could cause loading errors on some screens
  • Improved session handling for a more stable experience
  • General performance and stability improvements

### 1.0 — 2025-12-08

No release notes.

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## More apps by Carlos Ramirez

- [IronMail](https://appshunter.io/ios/app/ironmail/id6760423579)

All apps by Carlos Ramirez: https://appshunter.io/developer/1844215160

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-02.*