No moat. Still in business.

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An iPhone app that takes Japanese learners from beginner to fluent with one new sentence per flashcard and spaced review.

Since 2015

Courses and learning · Individuals and families

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Builder for conversational forms and surveys with logic, offered in the cloud or as a WordPress plugin.

Since 2018

Free plan · Forms and surveys

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Generates searchable API docs from C++ code and Markdown pages, with optional hosting, for C++ teams.

Since 2021

Developer tools · Developers

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Helps students sort courses, tasks, class schedules, flashcards and files into colour-coded folders.

Free · Focus and productivity · Individuals and families

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A note app for desktop and phone that records and transcribes, then answers questions using your own notes.

Since 2026

Notes and knowledge · 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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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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Make your own flashcard decks and review them on a spaced repetition schedule in the browser.

Since 2015

Free plan · Courses and learning · Individuals and families

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A browser extension that saves and highlights words you look up on web pages, then drills them with flashcards.

Since 2020

Free plan · Courses and learning · Individuals and families

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Note app for students that builds flashcards, quizzes and summaries from notes and PDFs with spaced repetition.

Since 2021

Free plan · Courses and learning · Individuals and families

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Drag and drop builder for contact, survey, registration and payment forms, with a free plan without response caps.

Free plan · Forms and surveys

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Flashcard app that uses spaced repetition so learners review hard cards more often, with sync between devices.

Courses and learning · Individuals and families

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Describe a form in plain text and get questions, logic and design drafted for you, then edit it, free with unlimited responses.

Since 2024

Free plan · Forms and surveys

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Build online forms and surveys with conditional logic, payments, PDF generation and offline filling, with a free plan.

Free plan · Forms and surveys

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Flashcard app for iPad and iPhone where students draw, type or add images to cards and review them with spaced repetition.

Since 2024

Courses and learning · Individuals and families

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A study app for students with spaced repetition flashcards, made from notes and PDFs, and scheduled around your calendar.

Free plan · Courses and learning · Individuals and families

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Builds forms and quizzes from a prompt, PDF or pasted text, with scoring, logic, payments and embeds for businesses.

Since 2024

Forms and surveys

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Open-source form builder for surveys, quizzes and lead capture with conditional logic, hosted or on your own server.

Since 2024

Free plan · Forms and surveys

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Students turn class notes or a PDF into a practice test that marks itself and explains each question they got wrong.

Since 2024

Free plan · Courses and learning · Individuals and families

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Build step-by-step forms for surveys, leads and quizzes, with logic, webhooks and unlimited responses on the free plan.

Free plan · Forms and surveys

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Flashcard maker that schedules reviews by spaced repetition, with dictionaries and text to speech for language learners.

Since 2024

Free plan · Courses and learning · Individuals and families

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Persian-language online form and quiz builder with calculations, payments, SMS alerts and reports.

Free plan · Forms and surveys

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Learn to read Arabic with alphabet lessons, graded stories and flashcards that schedule reviews around your memory.

Since 2026

Free plan · Courses and learning · Individuals and families

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A language app that translates words offline, saves them to your own tagged word list and helps you review them with flashcards.

Since 2025

Courses and learning · Individuals and families

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A reading and study app that lets you clip from books and papers, link the clips in mind maps and review them as cards.

Courses and learning · Individuals and families

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WordPress form builder for contact forms, surveys, quizzes and calculators, with entries shown as listings or directories.

Free plan · Forms and surveys

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A WordPress form builder for contact, order and signup forms, with payments and conditional logic built in.

Forms and surveys

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A language app where a partner or friend fills in words, audio and sentences for you to study, on iPhone and Android.

Since 2025

Courses and learning · Individuals and families

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Builds WordPress forms in the block editor, Elementor or Bricks, including multi-step, calculator, payment and login forms.

Forms and surveys

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A WordPress plugin for building multi-step contact, payment, survey and registration forms by drag and drop.

Free plan · Forms and surveys

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Hover over Chinese text in any Mac app to see pinyin, meanings and sentence breakdowns, and save words as flashcards.

Since 2026

Free plan · Courses and learning · Individuals and families

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A drag and drop form builder plugin for WordPress, sold once through CodeCanyon.

One-off payment · Forms and surveys

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Students upload slides or notes and get practice quizzes and spaced-repetition flashcards made from them.

Since 2025

Free plan · Courses and learning · Individuals and families

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Drag and drop form builder for WordPress sites, with calculations, email alerts and paid add-ons for payments and CRMs.

Free plan · Forms and surveys

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A drag-and-drop WordPress form builder for contact, payment and feedback forms, with templates and conditional logic.

Free plan · Forms and surveys

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A flashcard app that makes study cards from your PDFs, articles and photos and schedules reviews so you remember them.

Since 2026

Free plan · Courses and learning · Individuals and families

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Learn English words from books you are reading, with ready-made flashcards, quizzes and a word bank.

Since 2025

Free plan · Courses and learning · Individuals and families

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An app for learning Japanese with an AI tutor, speaking roleplays, kanji, quizzes and a personal study plan.

Since 2026

Free plan · Courses and learning · Individuals and families

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Learn Japanese or Korean by tapping words in YouTube videos, manga and books, with flashcards that track what you know.

Since 2025

Free plan · Courses and learning · Individuals and families

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Save new words from what you read or watch, get AI definitions and examples, then review them with FSRS flashcards on Apple devices.

Since 2025

Free plan · Courses and learning · Individuals and families

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Connect Claude or ChatGPT so they turn what you read into flashcards, then review them on any device.

Since 2026

One-off payment · Courses and learning · Individuals and families

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Turns notes, PDFs or images into flashcards you can study online, share by link or print.

Since 2025

Free · Courses and learning · Individuals and families

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WordPress plugin for building contact, survey, quiz and payment forms with drag and drop and ready-made templates.

Free plan · Forms and surveys

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Records lectures and meetings on Mac or iPhone, transcribes them locally and turns them into notes, flashcards and study sheets.

Free · Notes and knowledge · Individuals and families

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A WordPress plugin for building contact, registration and quiz forms by dragging fields, with entry viewing and spam protection.

Forms and surveys

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A free WordPress plugin adding dozens of Gutenberg blocks and patterns for layouts, animations, tabs and simple forms.

Free · Website builders

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A reading app for language learners that imports books, articles and videos, translates words and sends vocabulary to Anki.

Since 2026

Free · Courses and learning · Individuals and families

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Turns PDFs and notes into flashcards you can review and edit, then export to Anki, Mochi or SuperMemo.

Since 2026

Subscription · Courses and learning · Individuals and families