Marmalead might be a bit more popular than PushCrew. We know about 1 link to it since March 2021 and only 1 link to PushCrew. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Pushcrew.com — Push notification service. Unlimited notifications up to 2000 Subscribers. - Source: dev.to / almost 3 years ago
I don't use any of the paid online services, like Marmalead, for SEO keywords but hopefully others will contribute their experience. Source: almost 2 years ago
OneSignal - Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.
Sellzone - Sellzone is the web-based platform, designed and produced by Semrush, that provides the tools to run the store and sell the products on Amazon successfully.
iZooto - Engage your mobile and desktop web users with intelligent web push notifications.
Sale Samurai - Sale Samurai is a web-based platform that provides the tools to manage the SEO of your e-commerce brand.
Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.
EtsyHunt - Backed by lots of top Etsy shop ideas, EtsyHunt builds tools that make Etsy SEO, products research, Etsy listing and tag optimization easy. Get it for free now!