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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Open-source backend for app builders with auth, databases, storage, functions and hosting, run in the cloud or on your own servers.

Since 2021

Developer tools · Developers

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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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An Android app that keeps your two-step login codes in an encrypted vault, with backups and import from other apps.

Free · Security and passwords · Individuals and families

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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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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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Free offline notebook app that keeps notes on your device with themes, PDF export and one-click backups, no account required.

Free · Notes and knowledge · Individuals and families

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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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Dashboard for agencies to update, back up, scan and monitor many WordPress and Joomla client sites from one place.

Free plan · Uptime and monitoring · Agencies

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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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A self-hosted panel for running game servers in Docker containers, for friends' groups or hosting companies.

Free · Developer tools · Software companies

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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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Runs and manages databases on Kubernetes, covering provisioning, scaling, backups and upgrades for platform teams.

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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Drop-in Redis replacement that aims to halve memory use, with a trial mode to test savings on your own data.

Free trial · Developer tools · Developers

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Connect your cloud servers and deploy, back up and manage WordPress, PHP and Node.js sites from a single dashboard.

Free plan · Developer tools · Agencies

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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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Deploys Docker Compose apps from GitHub to your own Linux servers on each push, with domains, logs and backups.

Developer tools · Developers

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Hosted app backend with database, user login and generated REST and GraphQL APIs, so developers skip running servers.

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

Free plan · Email marketing

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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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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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Hosts PocketBase backends with deploy on push, backups and custom domains at a flat price, for indie developers and freelancers.

Since 2026

Subscription · Developer tools · Agencies

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Self-hosted platform that deploys apps and databases from Git onto your own servers, with HTTPS, logs, backups and monitoring.

Since 2025

Developer tools · Developers

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WordPress plugin that schedules site backups, stores them off site and moves sites between hosts or to staging.

Free plan · Website builders

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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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Self-hosted dashboard that lets agencies update, back up, secure and report on all their client WordPress sites.

Free plan · Uptime and monitoring · Agencies

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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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Backs up WordPress sites off server as changes happen, with one click restores, staging copies and host migrations.

Subscription · Website builders

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A control panel for your own server that deploys apps from Git, runs databases and handles SSL and backups.

Developer tools · Agencies

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WordPress plugin that makes staging copies, backups and restores, and moves sites to another server.

Website builders · Agencies

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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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Dashboard for agencies and freelancers to update, back up, monitor and report on many WordPress client sites at once.

Subscription · Uptime and monitoring · Agencies

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Edit your WordPress site's .htaccess file from the admin area, with backups, a test step and ready-made snippets.

Free plan · Developer tools · Agencies

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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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Backs up your servers, Postgres, MySQL and MongoDB databases, Docker volumes and Kubernetes on a schedule into S3 storage you control.

Free plan · Developer tools · Agencies

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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