No moat. Still in business.

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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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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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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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Shows how often ChatGPT, Gemini and other AI assistants mention a brand, and helps write content they will cite.

Since 2023

Subscription · SEO

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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.

Since 2024

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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Build and A/B test pricing tables for your website without code, with Stripe revenue insights.

Since 2024

Free plan · Website builders · Online sellers

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A free desktop Markdown app for researchers and writers, with citations, local files and export to journal templates.

Free · Notes and knowledge · Creators and writers

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Turns a topic or block of text into a finished infographic for blogs and social posts, with no design work needed.

Since 2024

One-off payment · Design and images · Creators and writers

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An editor that helps non-native English researchers draft papers, with grammar fixes and PubMed and Crossref citations.

Since 2024

Subscription · Documents and e-signature · Schools and tutors

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

Free plan · Email marketing

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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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Searches your company's Slack, Drive, GitHub and other tools by permission and answers questions with links to the source.

Notes and knowledge

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Research assistant for buy-side investors that answers questions from filings and your own documents, with a citation on each figure.

Data and spreadsheets

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A Mac app that reads your PDFs with an on-device AI model, so you can ask questions, get summaries and jump to cited pages.

Since 2024

Free · Documents and e-signature

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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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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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Tracks where your brand and competitors show up in ChatGPT, Gemini and other AI answers, and which sources they cite.

Since 2026

Free trial · Marketing and social

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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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Helps researchers search papers and their own files, ask questions across them and write with checked citations.

Notes and knowledge · Individuals and families

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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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Tracks how eight AI chatbots mention your brand and competitors, then ships fixes to your site and ties AI visits to revenue.

Since 2025

Free trial · Website analytics · Online sellers

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Writes blog posts, case studies and white papers in your brand voice, keeping only claims backed by sources you can click.

Since 2026

Subscription · Marketing and social · Agencies

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Browser tool for software teams to resolve git merge conflicts, run a merge queue and manage CODEOWNERS rules.

Since 2026

Free plan · Developer tools · Developers

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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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Watches how ChatGPT, Gemini and other AI tools mention your brand and turns the findings into content tasks.

Subscription · SEO

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Records every AI agent decision in a signed, tamper-evident log so teams can show regulators what their AI did under the EU AI Act.

Since 2026

Free plan · Developer tools · Developers

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A no-code popup tool for shops and websites to collect emails, show offers and win back visitors about to leave.

Free plan · Marketing and social

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Site analytics with split testing that shows which campaign, page or test version led to each sale, for online businesses.

Since 2026

Subscription · Website analytics

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Stores the reasoning from AI coding chats with each git commit and posts it to pull requests for team review.

Since 2026

Free plan · Developer tools · Developers

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A Mac app that runs several AI coding agents side by side in separate clones and chains them to plan, build, review and test.

Free · Developer tools · Developers

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Fixes the mixed content and insecure content warnings a WordPress site shows after it moves to HTTPS.

Website builders

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Runs versioned SQL and Python database migrations with dry runs, history checks and rollbacks, for Python teams.

Since 2026

Free plan · Developer tools · Developers

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Drafts answers to RFPs and security questionnaires from your approved documents, with citations for reviewers to check.

Since 2026

One-off payment · CRM and sales

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Builder for landing and lead capture pages with templates, AI drafts and A/B testing to improve conversions.

Subscription · Website builders

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A PDF reader for researchers that turns your annotations into notes you can send to Bear, Evernote or Markdown.

Free plan · Documents and e-signature · Individuals and families

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Add one script to your site for widgets like local pricing, exit offers and social proof to lift sales.

Since 2025

One-off payment · Marketing and social · Online sellers

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Build a pre-launch waitlist page where signups earn rewards for referring friends, with emails and A/B tests.

Since 2025

Free plan · Marketing and social · Online sellers

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Feature flags for software teams to roll out changes to chosen users, watch error rates and roll back bad releases.

Free plan · Developer tools · Developers

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Cookie consent banners and consent records for websites and apps, so businesses meet GDPR and similar laws.

Free plan · Legal and compliance

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WordPress plugin to A/B test pages, watch session recordings and heatmaps, and track WooCommerce revenue by variant.

Free trial · Website analytics · Online sellers

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Pools GPUs and CPUs from many cloud providers and your own servers so developers can run large data jobs in one place.

Since 2026

Developer tools · Developers

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Gets and renews free Let's Encrypt SSL certificates on cPanel shared hosting without command line work.

Free plan · Security and passwords

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WordPress plugin for publishers to place, rotate, target and schedule ads from any network and track clicks.

Free plan · Marketing and social · Creators and writers

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Builds sales and lead funnels inside WordPress and WooCommerce, with custom checkout pages, upsells and split tests.

Online shops · Online sellers