Nylas
Developer APIs for email, calendar, scheduling and meeting notes, plus hosted inboxes for AI agents.
Marketing & Advertising
168 tools · 62 with a free plan · 69 with a free trial · 82 with an API
168 tools in this group, each with a full profile: what it does, key features, screenshots, and pricing when the maker publishes it.
Thumbnail Test
A/B testing tool that rotates YouTube thumbnails and titles on a schedule and reports which version performs better.
Quaily
Newsletter service for creators that sends posts by email and to chat and social channels, with AI assistance.
Readdle
Maker of productivity apps for iPhone, iPad and Mac covering PDFs, email, scanning, calendars and file management.
Koast
Ad operations platform for Meta advertisers with bulk launching, rule-driven AI agents and an MCP server.
Algrow
YouTube research and creation tool for finding niches and outlier channels and producing faceless videos with AI.
Volumn.ai
AI agents for X/Twitter that write and schedule posts, reply to relevant conversations, find leads and send outreach DMs.
Stanley
AI content assistant that drafts, schedules and posts social media content through a messaging thread.
Arvow
AI SEO platform with agents that write and publish articles, fix on-site issues, build backlinks and track brand mentions in AI search.
Supergrow
LinkedIn content platform that turns AI interviews and existing material into posts, with scheduling and team tools.
Orshot
Template-based API for automated creation of images, PDF files and video, with optional publishing to social accounts.
Circleboom
Social media tools for X account management and multi-platform post scheduling with an AI content generator.