The best alternatives to RSSMailer are Publicate, RSS API, and Kill the Newsletter. If these 3 options don't work for you, we've listed over 10 alternatives below.
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AssemblyAI— Speech-to-Text API with superhuman accuracy
Automatically convert RSS, ATOM and JSON-Feeds into a unified, easily parsable JSON Format. Call the API with different Feeds to subscribe to them and your server will receive a webhook whenever there are new entries in a Feed.
RSS3 is an open protocol designed for content and social networks in the Web 3.0 era. Official Reddit: https://www.reddit.com/r/RSS3/ Offical Telegram: https://t.me/joinchat/jhhncmdayvNlMDgx Offical Discord: https://bit.ly/3aSYvPA
SearQ is a REST API that allows users to search for and retrieve information from RSS feeds. Instead of relying on a traditional web crawling method, it leverages the information contained in RSS feeds to present the most relevant and up-to-date results.
Newsstand is a native Mac OS classic application that allows Mac OS 9 and vintage Mac users to read Google News across more than 200 curated topics and 24 countries.
Feedbutler sends the newest posts of your subscribed RSS feeds summed up as a single email to you. So you stay up to date without having to open an extra feed reader.