http://tweetdig.com
When people ask us what we do, we tell them that we're "like GMail filters, but for Tweets". We let you set up folders and filter tweets based on a range of criteria, including the author, if it's a retweet or if it's from a certain app.
People are signing up but then we're losing them and we don't know why. Any attempt we make to contact people typically ends when they ignore the email. We know that the interface could use some work, but we're a two man startup and neither of us are any good at design, and we can't afford to pay a freelancer to do it at the minute.
What we'd like is if some of you could give us a go and tell us what you don't like about the app. We're up for fixing any issues but without user feedback, we have no way to know what they are.
UPDATE: TheNextWeb explained it far better than I could. http://thenextweb.com/apps/2012/08/17/tnw-pick-day-tweetdig-sorts-tweets-folders-based-rules-stipulate/
UPDATE 2: I'm getting "You're submitting too fast. Please slow down. Thanks". I'll reply as soon as it lets me! Thanks for all the feedback
I just signed up, created one filter and one folder, so haven't spent a ton of time, but here's some initial feedback:
What problem are you trying to solve exactly? Your homepage says "easy Twitter filtering" yet the set up seems a bit complicated. Basically, from what I gather is you're another twitter client competing with Hootsuite, Tweetbot, Tweetdeck - all of which offer tweet filtering - so what is your key differentiator?
I think you're missing a differentiator - I can't find anything with your app that I can't already do with Hootsuite, so what would make me want to use TweetDig instead?
From a UX perspective, I would put Folder/Filter editing directly from the dashboard - an "Add Filter" button on the left side, and Edit option for existing filters (on hover, click, etc..) I had to search to find where to add/edit, and if your user's primary objective is filtering tweets, the ability to add/edit/manage filters should be much more prominent than buried under "Configuration".
You might want to consider looking at "Smarter filtering" with some natural language processing, machine learning, etc...
My biggest problem with saved searches and filters that I use is that often I'll get irrelevant stuff that clogs up those streams but does in fact match my criteria - I would see a ton of value in a twitter client where you can filter smarter - let me "ignore tweets in this 'filter' from this user", etc.. and go beyond simply matching criteria, to curate based on stuff I retweet, stuff I tweet, hashtags I use, etc...
My advice would be to focus on these things:
1. The ultimate problem you are trying to solve, and who has this problem? Find out what's most valuable to them in a solution. 2. User experience (not how pretty the UI is) but put yourself in your users' shoes, and do a walkthrough of your app. What is the objective your user is trying to achieve when they use your app, and are you making it as simple as possible for them to achieve that objective.
Best of luck!