aircart - aircart makes it really easy to sell an ebook, app, design files, album or any digital product you can think of fast and easy and get paid to your bank account, paypal or mobile money account.
Popify App - Boost your conversions using social proof popups
WP Social Proof - Social proof for WordPress Websites
Shopify - Shopify is a powerful ecommerce platform that includes everything you need to create an online store and sell online. Try it free for 14 days.
SocialProofed - SocialProofed is the easy way to embed Instagram feeds, Facebook reviews, and Google testimonials on your website...in just 60 seconds!
WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.