fastwrite.io is an edtech SaaS company building AI-powered writing tools for students. Its platform assists with drafting, editing, and improving academic texts, helping users produce higher-quality work more efficiently.

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HeyNews reads a newsletter's back catalog, learns how its writer actually sounds, and drafts new issues in that voice. It monitors sources across RSS feeds, blogs, Reddit, and social media, scores relevance, and returns a publish-ready draft. The creator reviews and sends every issue; nothing auto-publishes. Native beehiiv API and Kit OAuth integrations, plus archive import from any other platform such as Substack and Ghost. Sold as self-serve plans and as done-for-you newsletters for companies.

MobileAPI.dev is a REST API that provides comprehensive device specifications, images, and pricing data for 30,000+ mobile devices from 200+ brands. It covers smartphones, tablets, smartwatches, and laptops. Features include fuzzy search with match-certainty scoring, autocomplete, manufacturer filtering, and an AI-powered natural-language query endpoint. Free tier includes 200 requests/month. Pro plan at $15/month with 10,000 requests. API key authentication, HTTPS, CORS enabled.