Please add links to CouchApps (alphabetical order will help avoid duplicates in the long run). You may also be interested in the Couchapp Garden.
A GeoCouch app that provides a browseable map of entries from the Wikileaks Afghan Diaries.
The beginnings of a conversion of the BlueInk CMS to a CouchApp. Currently, it can serve as a view-engine for web pages wearing Mustache templates.
A little couchapp that helps visualizing expenses for my household. Currently in German only. I am working on a branch that uses views and _changes instead of a pure client side implementation with jquery.
Presentation software with a twist. Uses SVG and pan and zoom. Based on Sammy.js.
Brunch-Colors is a simple, addictive color-matching game that was made with Brunch that utilizes such tools as Backbone.js, eco and stylus.
A small UI for bulk editing CouchDB documents.
Spiders the web into CouchDB. Uses a Python script for web spidering. Read the blog post here
Simple Contact Form CouchApp for CouchDB. Includes simple mail spooler.
For doing presentations.
Application Logging tool. Uses a CouchDB backend with a CouchApp-based interface for sorting through log entries and troubleshooting/debugging applications. Leverages schema-less approach to allow log entries to contain structured meta-information to aid in troubleshooting
small app to populate couchdb using data from CSV files
Collaborative 2.5D drawing space.
A TODO tracker that replicates. Run it on your phone, run it on your server, run it on your laptop. Keep them synchronized. Never forget to do that important thing!
A catalog of all the food carts in Portland.
A CouchApp for language learning. Lets you train vocabularies and solve different kinds of games/tests. Has Cucumber tests.
Open source GTD style productivity app. Manage your tasks from bug trackers, pm tools and other online todo lists all in one place. Built with Ext JS 4.
Open source LIst notes. Easy track of your items. Built with Knockout.js.
A real time chat app on a Google Map. Points on a map as a chat rooms.
A new project aiming to bring real-time, CouchDB-powered forums to the masses.
A mobile-centric app to get the pricing information for Magic: The Gathering cards quickly and easily.
A personal Twitter archive.
A social link sharing tool.
A Markdown wiki. This is the wiki you are using right now.
Web-based application to store Processing JS sketches and renderings. Storage and service provided by CouchDB via CouchApp.
A basic CouchApp for inputing info from a form, and listing it in real time. This is the starting point for many other applications, as well as the Evently Guided Hack Video Tutorial.
couchapp generate foo to get your own version, ready for hacking.
A simple Sammy-On-CouchApp (soca) app that plays a random technical lecture or tech talk.
A simple CouchApp Demo that displays sales statistics as a bar graph. It uses the
_changes API together with Evently, so that the sales statistics are updated live (in near realtime).
The vision behind Skim is to develop a tool that can help analyze vast quantities of peer reviewed and community-provided information on metabolites, biochemical reactions and pathways. Heavily under development - may be unstable from time to time.
Whenever a user's computer wakes from sleep, the software takes a picture with their webcam and posts it to their profile on sleepcam.org. Users can like and comment on eachother's pictures.
A blog engine with tagging, Atom feeds, and gravatar comments.
http://github.com/narkisr/snippet-app A Couchdb snippets app with a Couchfuse backend.
A presentation engine. Like Keynote in the browser, but simpler. Uses Sammy.js.
A wiki couchapp. Uses textile as the markup language and has a few macros, templates and support for attachments.
A task tracker. This one got deprecated by Focus. It's got some cool features so it's worth looking at if you are building something similar.
A collaborative maze drawing app.
A real time chat app. One of the first demos of the
A Twitter search archive and real time display. Uses a Ruby backend to import tweets from the streaming API.
A Hacker News http://news.ycombinator.com/ clone built entirely using CouchDB that can be served as a couchapp.
Files attached to List of CouchApps: