Shopify payment app

I am looking for a Shopify payment app that can be integrated with PayPal, Stripe or Square. The payment app should have basic (standard) features and be customizable. I have some specific features in mind that I would like to see in the payment app. Ideal skills and experience for this job would include:

- Experience with Shopify payment app development
- Expertise in payment gateway integration
- Knowledge of basic payment app features
- Ability to customize payment app according to specific requirements

If you are confident in your skills and experience, and can deliver a Shopify payment app that meets my requirements, please get in touch.