Education & Reference

Live AI voice translation for Mac and Windows.

Todo lo que necesitas para preparar tu permiso de armas: tests teóricos actualizados, recursos de estudio, guías prácticas y contenido especializado para licencias tipo E y D.

Learn to play musical instruments with step-by-step interactive lessons. Try for free and start playing musical instruments within minutes!

Sign language dictionary that works great as a reference and as a tool for learning.

Learn languages online with Pimsleur's effective language learning programs. Start learning another language in a fun way at your own pace. Sign up today!

Offline English Grammar Checker for macOS (No Subscription)

Solar and heliospheric image visualization tool.

The world's first Flat Earth Simulator for mobile devices!

Master the gender of German nouns through an addictive flashcard-like app that offers insights to common patterns to enhance retention

Visit this site dedicated to providing the tales of Aesop's Fables. Free, online versions of Aesop's fables. Read Aesop's Fables and the morals of the tales

The built-in Translator API lets you translate arbitrary content from a source to a target language. Participate in the origin trial to take the API for a spin.

Transform your business with AI-powered speech and translation tools. Translate text, documents, audio and images into 100+ languages.

A simulation of the Prague Astronomical Clock (Pražský Orloj), configurable for any location on Earth, with user-settable time.

Access 100s of Russian online lessons at RussianPod101. FREE lessons come out every week. You learn Russian fast and start speaking from your first lesson.

Translate your page in real time using Google, Bing or Yandex - FilipePS/Traduzir-paginas-web

S3.Blog - Информационно-справочный блог разработчика. Разработка, администрирование, документация, linux, perl, javascript, bash, shell. S3.Translator

SkySafari 7 Pro simulates over 75 million stars down to 16th mangnitude, 3 million galaxies down to 18th magnitude, and 620,000 solar system objects; including every comet and asteroid ever discovered. And, state-of-the-art mobile telescope control.

The Science Of Accuracy

Stellarium Mobile Plus is the next generation astronomy star map app. It combines a realistic and accurate night sky simulation with a gigantic amount of online imaging and sky objects catalogs.

Translation tool for all your text. Translate easily your text with SYSTRAN translate box

Great tool for learning Chinese. Includes links to Chinese Grammar Wiki. Supports adding words to Skritter.

Free web version of Chinese Characters published by Yale University Press.

How does Tandem work? Download the app for free, find your perfect language partner, and start chatting. Practice with native speakers and get fluent fast.

HelloChinese is the most fun and effective app for beginners to learn Mandarin Chinese. Designed with an interactive gaming approach, HelloChinese helps beginners learn Mandarin Chinese at an accelerated pace, and aids in achieving conversational fluency in no time. It’s rated 4.8+ stars on both App Store and Google Play Store, and gets ranked #1 Chinese learning app in over 100+ countries.