No moat. Still in business.

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Posts a Slack alert when Apple or Google approves or rejects your app, or a TestFlight build is ready.

Since 2023

Subscription · Uptime and monitoring · Developers

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An offline iPhone todo list built around a daily plan, with do dates, recurrences, reminders and subtasks.

Focus and productivity · Individuals and families

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Sits in front of your server to receive webhooks from Stripe, Shopify and others, logging each one so missed events can be resent.

Free plan · Developer tools · Developers

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Add-on pack for Contact Form 7 that adds spam blocking, saved entries, redirects, webhooks and payments.

Free plan · Forms and surveys

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A secure portal that requests files from clients, sends automatic reminders and syncs what comes back to your drive.

Since 2019

Free trial · Documents and e-signature

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A free, quick kanban board for tracking bugs, ideas and small projects, which you can also run on your own server.

Free · Projects and tasks

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Phone app that counts the days to birthdays, holidays and anniversaries, with home screen widgets and reminders.

Focus and productivity · Individuals and families

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An API that gives AI agents their own email inboxes to send and receive mail, with webhooks and scanning for prompt injection.

Free plan · Transactional email · Developers

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An API that adds open and click tracking to emails from any provider and sends the events to your app by webhook.

Free plan · Transactional email · Developers

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A Mac terminal manager for developers running several coding agents, showing which session is waiting for input.

Since 2026

Developer tools · Developers

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A small headless CMS for writing and publishing blog posts and media, pulled into your site by API.

Free plan · Website builders · Creators and writers

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Family calendar app for parents, couples and shift workers, with color-coded schedules, shifts, grocery lists and chores.

Free plan · Family and parenting · 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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A native Mac app for developers to set up local mock endpoints, inspect incoming requests and test webhooks and API failures.

Developer tools · Developers

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Dashboard for email sent through Amazon SES showing bounces, deliveries, complaints, opens and clicks, run yourself or hosted.

Free · Transactional email · Developers

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Gives you one fixed webhook URL that forwards Stripe and Paddle events to whichever branch deployment you are testing.

Free plan · Developer tools · Developers

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Gives each AI agent a real email address, and soon a phone number, so it can read mail, reply and use login codes.

Free plan · Developer tools · Developers

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A hosted service that sends your app's webhooks with retries, logs and debugging so developers need not build it.

Free plan · Developer tools · Developers

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A simple to-do and reminder app for phones and tablets with checklists, memos, widgets and sync between devices.

Projects and tasks · Individuals and families

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An API and MCP server that lets AI agents send contracts and collect two-party signatures by email.

Free plan · Documents and e-signature · Developers

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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.

Developer tools · Developers

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A Mac reminders app that shows an animated cat or dog on your desktop when something is due.

Free plan · Focus and productivity · Individuals and families

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Gives static website forms a hosted endpoint that stores submissions, filters spam and sends alerts to email, Slack or Discord.

Forms and surveys · Developers

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One MCP server that gives AI agents hundreds of sourced data streams like weather, markets and releases, with full history.

Developer tools · Developers

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Receives webhooks for your app, retries failed deliveries and keeps a replayable history so no events get lost.

Free plan · Developer tools · Developers

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Sends you new business websites in your market each week, filtered by keyword or tech, with their contact details.

Since 2026

Subscription · CRM and sales · Agencies

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A small self-hosted support desk with chat-style tickets, a customer portal and staff queues, running as one Go binary.

Free · Customer support

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Gives each service a private webhook URL and turns incoming JSON into plain English iPhone alerts, with sensitive fields masked.

Uptime and monitoring · Developers

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Lets merchants invoice in Monero and have customers pay straight into the merchant's own wallet, with APIs and webhooks.

Payments and checkout · Shops and retail

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A Chrome extension that gives you a webhook URL, so automation tools can open links as new tabs in your browser.

Automation and integrations · Developers

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A form endpoint for React, Vue or plain HTML sites that stores submissions, blocks spam and emails or forwards each one.

Free plan · Forms and surveys · 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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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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A JSON API and webhooks that deliver new SEC filings and insider trades to fintech apps and quants.

Free plan · Developer tools · Developers

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Send app events with one HTTP call, then search them and get them delivered to Slack, Discord, Telegram or webhooks.

Free plan · Developer tools · Developers

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A Mac app that puts iMessage, WhatsApp and Telegram chats in one inbox, with reminders and notes on contacts.

Since 2025

Free · CRM and sales · Individuals and families

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Task manager for Mac, iPhone and Android with natural language entry, tags, lists and syncing with common services.

One-off payment · Projects and tasks · Individuals and families

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A habit app based on the Atomic Habits book that helps you start small, track progress and adjust habits.

Free plan · Health and habits · Individuals and families

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Plans home cleaning and upkeep with built-in task lists, reminders and sharing, and handles more than one property.

Home and car · Individuals and families

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An email API that developers use to receive mail on their own domain as JSON, route it and reply in the same thread.

Subscription · Transactional email · Developers

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A private personal CRM that records details, dates and past chats about the people in your life.

Since 2017

CRM and sales · Individuals and families

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A Mac app that floats a reminder note above your windows, with a Pomodoro timer, aimed at people with ADHD.

Free · Focus and productivity · 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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A notes app for Mac and iPhone that puts notes on a timeline and links them to calendar events.

Free plan · Notes and knowledge

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Hosted service that receives, logs and retries webhooks, with a CLI for local testing and a typed SDK.

Since 2024

Developer tools · Developers

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A form backend for developers that adds front-end validation, autoresponders and spam blocking, with a HIPAA option.

Free trial · Forms and surveys · Health and clinics

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An iPhone app for short reminders to yourself or sealed notes to friends that pop up in the Dynamic Island on time.

Since 2026

Free plan · Focus and productivity · Individuals and families

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Uptime checks you set up through an API, a GitHub Action or an AI agent, with alerts when a site goes down.

Free plan · Uptime and monitoring · Developers