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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Open-source admin panel you point at your app's database to edit records, run custom actions and build SQL reports.

Since 2021

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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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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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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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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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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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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Design dashboards for e-ink screens around your home and keep them updated, run on your own server or Home Assistant.

Since 2026

Free · Home and car · Individuals and families

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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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Self-hosted tool to search, tail and chart logs and set alerts over data already in ClickHouse or VictoriaLogs.

Since 2025

Free · Uptime and monitoring · Developers

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Open-source business intelligence you host yourself, with a Malloy semantic layer, dashboards and an AI data analyst.

Since 2019

Free · Data and spreadsheets · Software companies

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Lets data teams build reports and dashboards from SQL and markdown, with a hosted option and an agent for questions.

Since 2021

Data and spreadsheets · Developers

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No-code database where teams store and share structured data, then add apps, automations and dashboards on top.

Free plan · Data and spreadsheets

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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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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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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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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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Send JSON events from your app with one request, then chart, query with SQL, set alerts and embed dashboards.

Since 2022

Free plan · Website analytics · Developers

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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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A hosted version of Apache Superset for building dashboards, exploring data and embedding charts in your own apps.

Free plan · Data and spreadsheets

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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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Pulls survey answers, reviews and support chats into one place to chart them and code open text into themes.

Since 2023

Data and spreadsheets · Agencies

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Business intelligence tool built on dbt where data teams define metrics once and everyone builds charts, without paying per seat.

Subscription · Data and spreadsheets · Software companies

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

Website builders

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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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BI tool that answers data questions with charts inside ChatGPT, Claude and similar assistants, saved for the whole team to use.

Since 2026

Free plan · Data and spreadsheets

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Feature flags and A/B tests that read results from your own data warehouse, for software product teams.

Free plan · Website analytics · Software companies

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Lets a business build its own analytics store, link the apps it uses, agree on key numbers and ask questions about them in plain English.

Since 2025

Data and spreadsheets

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Upload an Excel sheet and publish it as a searchable, sortable web table or chart you can link to or embed.

Since 2025

Free plan · Data and spreadsheets

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WordPress plugin for building popups and bars with display rules, A/B tests and email signup capture.

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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A self-hosted web workspace for ClickHouse with a SQL editor, dashboards and cluster monitoring, for data teams.

Since 2026

Free plan · Developer tools · Developers

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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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Lets developers record counters and revenue figures in their own database, then chart them and set alerts in a hosted dashboard.

Since 2026

Subscription · Developer tools · Developers

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Builds charts and business dashboards from your data when you describe them in plain English, so you skip writing SQL.

Since 2025

Subscription · Data and spreadsheets

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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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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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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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A desktop app to connect to 30+ databases, write or generate queries with your own AI keys, edit data and build dashboards.

Since 2026

Free trial · Developer tools · Developers

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Feature flags and remote config so software teams can release to user segments, run tests and switch features off fast.

Free plan · Developer tools · Developers

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Connects to your business data and builds charts and dashboards, or replies to data questions asked in plain language.

Since 2025

Free plan · Data and spreadsheets

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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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Builds popups for online stores, such as signup offers, exit discounts and spin wheels, by describing them to an AI agent.

Free plan · Marketing and social · Online sellers

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Build database tables, entry forms, charts and dashboards inside the WordPress admin without code.

Free plan · Data and spreadsheets

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Lets coding agents publish HTML reports and dashboards to a shareable link where people and agents can comment.

Documents and e-signature · Developers