Klaviyo is the best in class email marketing solution for eCommerce. It's powerful because it connects to your store, and you can create awesome customer segments based on past purchasing behaviors, customer preferences, and even future predictions of spending.
Shopify is a commerce platform that allows anyone to set up an online store and sell their products. It's the go-to eCommerce platform for young direct-to-consumer brands. It's ease of use and setup is what's most attractive to merchants, but also the incredibly vast Shopify app store.
Junip is a review app for eCommerce. Junip allows you to share in-depth reviews that leverage photos, videos & custom questions directly on-site. Junip's review solicitations via emails & forms are engineered to convert to help you get the most out of your customers.
Viral Loops is a referral marketing solution for all. They pride themselves on simplicity to setup and their large database of templates based on past referral marketing successes. Viral Loops also offers no-code abilities to create landing pages to promote your referral program.
Sanity.io is the platform for structured content. With Sanity.io you can manage your text, images, and other media with APIs. You can also use the open-source single page application Sanity Studio to quickly set up an editing environment that you can customize.
Nice allows you to show recent orders via pop-ups which increases your conversion rate.