Amazon Comprehend - Discover insights and relationships in text
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.
FuzzyWuzzy - FuzzyWuzzy is a Fuzzy String Matching in Python that uses Levenshtein Distance to calculate the differences between sequences.
PushBots - Light SDK for mobile push notifications
spaCy - spaCy is a library for advanced natural language processing in Python and Cython.
iZooto - Engage your mobile and desktop web users with intelligent web push notifications.