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@hyochan

Hyo

hyochan
Seoul

👋 Hi, I'm Hyo

I'm an open-source maintainer focused on cross-platform mobile infrastructure. I maintain react-native-iap, expo-iap, flutter_inapp_purchase, react-native-nitro-sound, flutter_calendar_carousel, react-native-masonry-list, and other libraries used by mobile teams across React Native, Expo, Flutter, and Kotlin.

I also created OpenIAP, an effort to standardize in-app purchase APIs and platform behavior across mobile ecosystems.

🚀 What I'm building and maintaining

OpenIAP provides a consistent, scalable foundation for in-app purchases across different platforms, reducing duplicated work and making cross-platform apps easier to ship.

Beyond OpenIAP, I maintain and support open-source packages for:

  • In-app purchases across React Native, Expo, Flutter, Godot, and Kotlin Multiplatform
  • Native audio recording and playback for React Native
  • Mobile UI components, examples, and developer tooling
  • Documentation, issue triage, release maintenance, and migration support

💡 Why sponsorship matters

These projects are infrastructure for real production apps. Keeping them reliable requires ongoing work beyond writing code:

  • Testing real purchase flows across stores, SDKs, and devices
  • Tracking Apple, Google Play, Amazon, React Native, Expo, Flutter, and Kotlin changes
  • Fixing regressions and edge cases
  • Reviewing issues, discussions, and community reports
  • Maintaining documentation and migration paths

Your sponsorship helps keep these libraries stable, actively maintained, and production-ready.

🤝 Sponsorship

If your company relies on these libraries in production, vendor-level sponsorship helps fund long-term maintenance and gives me more capacity to respond to production-impacting issues.

For individual developers, any support is greatly appreciated. It helps keep the ecosystem healthier and more sustainable.

Thanks for being part of the ecosystem ❤️

@hyochan

Reaching this goal allows me to dedicate consistent time to maintaining and improving OpenIAP and related libraries. This includes fixing bugs, improving reliability, handling user issues, and keeping up with platform and store changes to ensure production stability.

Featured work

  1. hyochan/react-native-iap

    In App Purchase module for React Native that confirms OpenIAP

    TypeScript 3,225
  2. hyochan/react-native-nitro-sound

    react-native native module for audio recorder and player with nitromodule!

    TypeScript 957
  3. hyochan/flutter_calendar_carousel

    Calendar widget for flutter that is swipeable horizontally. This widget can help you build your own calendar widget highly customizable.

    Dart 861
  4. hyochan/flutter_inapp_purchase

    Flutter In App Purchase plugin that confirms OpenIAP

    Dart 592
  5. hyochan/expo-iap

    In App Purchase module in Expo that confirms OpenIAP

    TypeScript 351
  6. hyodotdev/openiap

    Meta-backed standardized protocol for implementing in-app purchases across all platforms

    TypeScript 103

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$ a month

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$5 a month

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Support my open-source maintenance work across OpenIAP, react-native-iap, expo-iap, and other mobile libraries.

• Helps keep issues, docs, and releases moving
• Supports small but steady maintenance work

Great for individual developers using these projects.

$25 a month

Select

Name: Community

Support ongoing open-source maintenance more directly.

• Helps sustain OpenIAP and related mobile libraries
• Supports docs, examples, release cleanup, and issue triage
• Keeps the projects available as open-source infrastructure

Ideal for individual developers and small apps that benefit from the ecosystem.

$100 a month

Select

Name: Bronze

Small team sponsorship.

• Company or product name can be listed in project README/sponsor sections (optional)
• Supports maintenance across OpenIAP, react-native-iap, expo-iap, Flutter IAP, and related libraries
• Helps fund documentation, issue triage, and release stability

Suitable for teams using these libraries in production.

$300 a month

Select

Name: Silver

Company sponsorship for teams using these libraries in production.

• Company logo or name can be listed where sponsor sections are available
• Supports cross-platform reliability, documentation, and release maintenance
• Helps maintain compatibility across stores, SDKs, and frameworks

Recommended for teams using OpenIAP, react-native-iap, expo-iap, or related libraries in production.

$500 a month

Select

Name: Gold

Production sponsorship for companies with deeper dependency on these projects.

• Larger recognition where sponsor sections are available
• Supports long-term maintenance, release stability, and platform evolution
• Helps fund compatibility work across stores, SDKs, and frameworks

For companies relying on these libraries in production apps.

$1,000 a month

Select

Name: Angel

Vendor-level sponsorship for companies relying on these projects in production.

• Featured recognition across relevant project sponsor sections
• Priority awareness for issues affecting your platform or use case
• Supports long-term maintenance, compatibility updates, and production stability
• Helps sustain reliable cross-platform mobile infrastructure

Recommended for vendors or companies depending on OpenIAP, react-native-iap, expo-iap, or related libraries.

$2,000 a month

Select

Name: Partner

Production platform support sponsorship.

• Prominent sponsor recognition across relevant project properties
• Priority triage awareness for production-impacting issues
• Supports regression testing, platform updates, and migration support
• Helps sustain long-term compatibility across supported ecosystems

Recommended for companies relying on these projects as production infrastructure.

$5,000 a month

Select

Name: Strategic

Strategic ecosystem sponsorship.

• Top-tier sponsor recognition across relevant project properties
• Priority collaboration on roadmap and platform support planning
• Supports dedicated maintenance capacity and ecosystem expansion
• Helps fund long-term reliability for production-grade mobile infrastructure

Best suited for vendors, platforms, or companies with strategic dependency on these projects.

Please contact before sponsoring at this tier to align expectations.