No moat. Still in business.

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Excel add-in for querying tables with SQL, scripting workbooks in C# and building custom Excel functions.

Since 2016

Free plan · Data and spreadsheets · Developers

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Lets teams edit, test and send transactional email templates without code deploys, with A/B tests and analytics.

Since 2014

Subscription · Transactional email · Software companies

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Lets developers and their coding agents see the DOM, console and network of web pages on real iPhones and Android phones.

Since 2020

Free plan · Developer tools · Developers

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Email marketing app for sending newsletters, campaigns and automated sequences, built for teams that write together.

Since 2018

Free plan · Email marketing · Online sellers

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Mac app that logs which apps, sites and documents you use, then helps you turn that into billable time entries.

Free trial · Time tracking · Individuals and families

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To do app that syncs one list across iPhone, Mac, Windows, Linux and the web, works offline and accepts tasks from AI assistants.

Free plan · Projects and tasks · Individuals and families

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Builds websites from ready sections or from a prompt in your AI assistant, with your own domain and many languages.

Free plan · Website builders

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Handles in-app subscriptions for mobile apps, with a paywall builder, price tests and revenue reports for app teams.

Free plan · Payments and checkout · Developers

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An API and MCP feed of live people and company data that sales, hiring and investing tools can query.

CRM and sales · Software companies

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Records visitor sessions on your site and uses AI to point out errors, rage clicks and drop-offs, alongside heatmaps.

Free plan · Website analytics

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Mac app that runs your own AI prompts on selected text, screenshots or voice from any app by keyboard shortcut.

Since 2023

One-off payment · Focus and productivity · Individuals and families

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Copies events between your work, personal and school calendars so you show as busy everywhere, keeping details private.

Free plan · Scheduling and booking · Individuals and families

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Desktop data analysis app where you ask about your data in plain English and get Python code, charts and notebooks run on your computer.

Since 2017

Data and spreadsheets

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An open-source AI coding agent that plans and makes code changes, used from your editor, a desktop app or the terminal.

Developer tools · Developers

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Gives AI assistants and agents authenticated access to over 1,500 apps so they can take actions, with a managed MCP gateway.

Pay as you go · Developer tools · Developers

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A Mac app that gives programmers offline search across 200+ API doc sets, cheat sheets and their own code snippets.

Developer tools · Developers

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Spreadsheet that links to databases and files and lets AI write the formulas, Python and charts for you.

Since 2023

Data and spreadsheets

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A cloud workspace for creating, running and sharing marimo Python and SQL notebooks for data work

Since 2024

Developer tools · Developers

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An API that returns live Amazon product details, prices, reviews and sales estimates for developers building shopping or seller tools.

Free plan · Developer tools · Online sellers

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Feature flag service that lets software teams roll out, test and switch off features in production without redeploying.

Subscription · Developer tools · Developers

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Turn app features on or off and roll them out to chosen users without redeploying, with unlimited team seats.

Free plan · Developer tools · Developers

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One subscription to a catalogue of ready APIs for documents, verification, media and AI tasks, aimed at developers building products.

Since 2023

Free plan · Developer tools · Developers

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Create branded short links and QR codes, track clicks and route visitors by device or country, for marketing teams.

Since 2026

Free plan · Marketing and social

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Lets Claude, Codex or other AI agents tap, type and read the screen on your iPhone or Android phone, or on a rented cloud phone.

Free plan · Developer tools · Individuals and families

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Lets AI agents upload single-file HTML reports and dashboards and share them as clean links instead of raw code.

Developer tools · Developers

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WordPress plugin that pins a floating button to blog posts so bloggers get more clicks on offers and contact links.

Free plan · Marketing and social · Creators and writers

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Lets app and game developers change settings and run A/B tests remotely, without shipping a new build or waiting for store review.

Developer tools · Developers

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Kanban board for developers that hands tasks and their context to coding agents through MCP and VS Code.

Since 2026

Projects and tasks · Developers

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An API that pulls structured data out of web pages using AI, aimed at developers and AI agent builders.

Free plan · Developer tools · Developers

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A shared memory store that lets a team's AI assistants save and reuse knowledge across sessions and tools.

Since 2026

Free plan · Developer tools · Developers

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Build popups, multi-step forms, quizzes and on-site widgets to collect leads and sales from website visitors.

Free plan · Forms and surveys

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Shows different text, popups or redirects to each WordPress visitor based on location, device or behaviour.

Free plan · Marketing and social

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Pulls business listings from Google Maps by keyword and place into lead lists you can export as CSV, Excel or JSON.

Since 2026

Free plan · CRM and sales

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A web workspace where analysts write SQL over market prices, macro series and SEC filings, then chart the results without Python.

Since 2026

Subscription · Data and spreadsheets

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Deploys an app your coding agent built onto one dedicated managed machine with database, cache and backups for a flat monthly price.

Since 2026

Free plan · Developer tools · Developers

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Pick episodes from any public podcasts and publish them as your own shareable RSS feed, for guests, fans and teachers.

Since 2026

Free plan · Podcasting · Individuals and families

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Keeps an ML project's decisions, evidence and next steps in a brief that Claude, ChatGPT or Cursor can load and update.

Since 2026

Free plan · Developer tools · Developers

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Mac app for screenshots and screen recordings that adds auto zoom and backgrounds, and lets an AI agent film demos.

Since 2026

Free trial · Video and audio · Creators and writers

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Connects Google, Meta and other ad accounts to Claude or ChatGPT so marketers can audit spend and build reports.

Since 2026

Marketing and social · Agencies

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A canvas style task board where Claude, Cursor and ChatGPT pick up cards and reply in chat next to your team.

Since 2026

Free plan · Projects and tasks · Software companies

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Open source uptime checks, alerts and public status pages that you or an AI agent can manage, with no charge per monitor.

Free plan · Uptime and monitoring · Developers

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Open-source team email with shared mailboxes that you deploy into your own Cloudflare account.

Since 2026

Free · Customer support

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Design, send and measure email campaigns and push messages, with a WooCommerce plugin for online shops.

Free plan · Email marketing

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Saves what you work out in AI chats as searchable documents that Claude, ChatGPT, Cursor and other MCP tools can read later.

Since 2026

Free plan · Notes and knowledge · Developers

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Describe your business and get a shared database with forms, dashboards and an API that your team and AI assistants both use.

Since 2026

Free plan · Data and spreadsheets

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Replaces private data with tokens that can be restored while AI agents run, so outside models never see it, and keeps a signed record.

Since 2026

Security and passwords · Agencies

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WordPress plugin that records heatmaps, sessions, funnels and form drop-off, storing all data on your own site.

Free plan · Website analytics

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Turns a short product idea into specs such as a PRD, database design, API docs and a sprint plan for development teams.

Since 2025

Free plan · Documents and e-signature · Developers