Showing 1–20 of 1,000 ranked alternatives.
Little Marvel Software Inc.
Explore artworks from around the world
Explore artworks from 3,000 artists across 100 countries. Browse paintings, drawings, and other media organized by artist, style, genre, period, and museum. Access concise artist bios, artwork context, dates, and provenance information.
Robb Rutledge
Play experiments, learn about
Answer: allows users to participate in psychology experiments by playing short games. Users answer questions about emotions and behaviors. Data collected helps researchers study factors affecting and mood disorders.
Ahmad Nakore
Learn anatomy, biochemistry, and cardiology
Learn for anatomy, biochemistry, cardiology, embryology, emergency medicine, gastroenterology, histology, internal medicine, microbiology, and neurology. Access for obstetrics and gynecology.
Kevin Lee
Search items, equipment, and survivors
Access comprehensive Risk of Rain 2 guides with searchable content on items, equipment, survivors, artifacts, and challenges. View stats, unlock details, and track progress. Supports dark mode for iOS 13 and higher.
Judy Bowes
Log bird collisions, view data, contribute
Log bird window collision incidents by uploading photos and details. Track reported finds with an account. View maps of nearby collisions and browse public reports. Count and submit collision data for research.
Cloud Nine Development LLC
Diagnose eye conditions and access treatment guides
Provides diagnostic tools for eye conditions. Users can calculate visual acuity, transposition, and glaucoma risk. Features include dry eye disease assessment and diabetic retinopathy severity evaluation. Age to bifocal calculation is also available.
Dominik Gyecsek
Explore , learn, and share knowledge
Access a database of over 100,000 across 60 topics. Search by keywords, topics, or saved items. Save, like, or dislike . Sync saved content across devices. Submit new to the database. Receive random via customizable notifications.
Wikimedia Foundation
Explore articles, search, and read content
Access articles from ’s extensive database in multiple languages. Search for topics, read detailed content, and navigate through categories and related pages. Bookmark pages for later reference and share content via social media or email.
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