Shopify App Store Guidelines
https://shinedezigninfonet.com..../blog/understanding-

Functionality and Performance

User Experience

Security and Privacy

Support and Documentation

Billing and Pricing

Compliance

Essential Features for a Successful Shopify App

https://shinedezigninfonet.com..../blog/top-10-must-ha

Seamless Integration

Customizability

Scalability

Analytics and Reporting

Automation

Multichannel Support

Customer Support Tools

Regular Updates