Does this already exist?

If you have international customers who speak other languages, response is lower when you speak to them in English. Solutions like Trustpilot handle that. Have implemented them plus some other methods for international customers in various countries, would be good to know a bit more about your specific requirements and share some tips on a phone call.

The big question that is always a challenge for a marketplace is refereeing between buyers and sellers when there is a conflict. Basically, what processes are in place to make sure there is a resolution if a transaction turns sour between buyer and seller. Ebay, for example, tends to favor the buyer and any loss for the seller is to be viewed as a "cost of doing business." Conversely, Amazon does a bit more with eating some costs themselves if there is an issue. These are gross generalizations about these marketplaces, but in order for a marketplace to succeed it needs to be trusted and liked by BOTH buyers and sellers. Otherwise, each group will continue to look for alternate channels outside your marketplace. Let me know if you would like more insight, specifics or solutions.

I've done this in the past. I find the best way is to do it in person. I made a habit of walking on my downtown street between lunch and asking the local business owners about their challenges of their business. I don't know if there's a number...I think idea extraction should become a part of your daily routine. Here are some questions you can ask: So your business does X? What is your role in the business? What does a typical day look like for you? Can you walk me through the first couple hours of your day? What are the first few things you do each morning? How many customers are you working with a month right now? What’s been your best month? What’s been your worst? What are a couple activities you have in your day that you just don’t enjoy? Getting Deeper Thinking about the last couple days at work, what has been the most challenging part? What do you use excel for in your business?** What is the most expensive problem in your business? What’s a problem that you’ve tried to solve in the past but didn’t work for you? What would you like to do with you mobile phone, but can’t?

The partnership is not likely to pan out well for either of you. Sustainable partnerships need shared visions and goals for both parties, otherwise you are in it for material reasons that can easily dissipate with any sign of trouble. Although it can be much easier and cheaper to partner while starting out, I would not recommend the one you described if they are not taking on costs and risk. For now, I would suggest outsourcing the development and maintenance. It looks like it would surprisingly cost less in the long-run (which normally would be the case for seeking a partnership). Good luck.

Selling any product including "iPhone cases" on websites with high competition like Ebay is surely not an easy mission. There are hundreds of sellers on Ebay and other websites who are already selling cases. If you need to get some sales, you need at least one of the following: 1. High reputation, reviews or feedbacks on the website that you are selling on. 2. The product that you are selling must be unique in some way or simply not found anywhere else. 3. If your products are featured at your own website, then that website of yours must be ranked properly online and marketed decently around social media networks. In your case, a possible approach would be to create your own website to sell your products on or work as an affiliate marketer for other big sellers in exchange for commissions. Depending on your budget, you need to draw the right plan around. If you have a good budget to invest in your business, then creating a website for yourself is a must. Otherwise, you need to rely on other websites and seek to provide unique or special products to get an edge around. Hope that helps!