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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A shared POSIX file system for Linux and Mac servers that stores its data in S3 or other object storage, with no storage cluster to run.

Since 2015

Subscription · Developer tools · 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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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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Free desktop app that backs up your encrypted files onto friends' computers while you store theirs in return.

Since 2021

Free · Security and passwords · Individuals and families

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Tracks stocks, crypto, property and private investments across brokers, with returns analysis and data encrypted on your device.

Since 2024

Free plan · Money and budgeting · Individuals and families

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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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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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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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Self-hosted notes and checklists app that keeps everything as Markdown files on your server, with kanban boards.

Free · Notes and knowledge · 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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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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Stores encrypted passwords, crypto keys and instructions and releases them to your chosen people if you stop checking in.

Since 2024

Free plan · Security and passwords · Individuals and families

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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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Backs up files on Windows PCs and Macs as encrypted, versioned copies to a cloud account or disk that you own.

Free trial · Security and passwords · Individuals and families

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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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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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Encrypted storage and sharing of environment secrets for dev teams, with audit logs and a command line tool.

Since 2026

Free plan · Security and passwords · Developers

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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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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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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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An iPhone, iPad and Mac app that sends files of any size as end-to-end encrypted links that recipients open in a browser.

Since 2026

Something else · Individuals and families

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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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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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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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Copy text, links or files on one device and paste them on another, with end to end encryption.

Since 2025

Free plan · Focus and productivity · Individuals and families

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A Mac clipboard history app with a Touch ID lock, encrypted history, text grabbing from images and reusable snippets.

One-off payment · Security and passwords · Individuals and families

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A desktop app on top of rclone to browse, sync, mount, encrypt and back up files across 70 plus cloud storage services.

Since 2025

Free plan · Something else

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Sends passwords, keys or files through encrypted links that delete themselves after being opened or after a set time.

Free · Security and passwords

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Encrypted budgeting app for individuals that sorts money into pockets and warns which day a balance will go negative.

Since 2026

One-off payment · Money and budgeting · Individuals and families

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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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Encrypts your internet traffic and routes it through community-run devices, a peer-to-peer alternative to a normal VPN.

Security and passwords · Individuals and families

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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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Password manager that keeps encrypted credentials on your own devices, with you holding the keys, across phone and desktop.

Security and passwords · Individuals and families

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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