The best alternatives to WhatSharer are Captain Share, Groupies, and Contexted. If these 3 options don't work for you, we've listed a few more alternatives below.
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beehiiv— The newsletter platform built for growth | 30-Day Free Trial
Postscript is like Mailchimp for SMS. It allows ecommerce companies to easily setup fully-compliant SMS & MMS marketing. Already live on Shopify & other platforms, Postscript works with thousands of ecommerce merchants, helping them increase sales. Merchants see very high engagement–averaging 95% open rates and 20% click-thru rates.
Porterhouse automates individualized mass iMessage and SMS messaging from your own phone number, right on your computer. Each message is sent individually to each recipient to personalize your text based marketing.
Harry is a tool to schedule SMS to attendees before or after an event on Eventbrite. This tool was made to communicate important information and remind people about events.