Slybroadcast

Megaphone is a podcast hosting, monetization and ad‑tech platform that provides episode publishing, analytics, dynamic ad insertion and an ad marketplace for publishers and advertisers. The platform was acquired by Spotify in 2020.

StraightText is bulk iMessage sender software offered at straighttext.com. It enables users to send large volumes of iMessage texts to multiple recipients directly from their own phone number and device.

Lob is a direct mail automation platform and print network operated by Lob, Inc. It provides APIs and services for printing and sending letters, postcards, checks, address verification and related mail workflows so companies can integrate physical mail into applications.

Substack is a newsletter publishing platform that can serve as the source for exporting an email list before importing it into another email platform.

Speechify is an AI voice and text-to-speech platform that reads written material aloud and also provides speech-to-text, conversational, and business-focused AI tools. Its SpeechifyAI service offers text-to-speech and realtime voice-agent APIs through a single interface, with streaming synthesis, zero-shot voice cloning from a consented reference clip, SSML-based emotion control, and multilingual output for English, German, Mexican Spanish, French, Italian, and Brazilian Portuguese. The service includes the Simba model family, which the site describes as streaming-native speech models designed to model voice identity, expression, and language for realtime conversation. Speechify was co-founded by Cliff Weitzman, who initially built it to consume written material through audio.