Which questions should I ask to an e-commerce web developer to compare it to another one to know which one is better?

Yes. https://docs.woothemes.com/document/configuring-woocommerce-settings/

Usually Programmers are only slow when they don't know how to solve a particular problem. So they will spend a lot of time researching and a lot of trial & errors to solve a problem. It is important that before you engage a programmer on a project, you break down the entire project into simple, easy to understand modules. Let him give you an estimate of how many hours he will require to complete each of the modules. Example: a typical site will have a login module, registration, My account, profile etc. So let him estimate how much he will require to do the login. You can go even detail here. (e.g. how much extra time if you were to implement Facebook/Twitter Login?). Once he start developing, track his progress closely and make sure he is following his given timeline. If he goes over his budgeted time on a module, talk with him and see what went wrong. It is often seen that they may be wasting their time on something very insignificant that you may have asked him to implement, but you can totally go by without it too. So by understanding what is taking longer time, you will be able to prioritise things better. You definitely need some tools to get this done. Google Spreadsheet or Excel works just fine. But if you don't mind spending a few bucks there are many agile project management tools that you might look into. Here is a list, google them all and sign up for trials: * AgileZen * Agile Bench * Assembla * AssiTrack * Blossom * Basecamp * Breeze * DoneDone * Eidos * Fogbugz * GreenHopper * Jugggla * Kanbanpad * Pivotal Tracker Or the reason why he is slow can be purely non-technical. Sometime your developer may don't share the same level of enthusiasm as you about the idea that you are working on. They often don't often see the "bigger picture" (since you don't share everything with them explicitly). If you can somehow get them excited about what he is a part of, it will work like a drug :) He will work day and night without questioning you. But you need to work equally as hard as him. The moment he sees that you are the boss and he is just the guy doing work for you -- his mentality will shift from being part of something to being the low paid developer. Ultimately its all about motivation and making him a part of your venture. After all he deserves it, if he is really playing a crucial role in the entire development.

A generalized question can only get a generalized answer. The most significant accomplishment is validating that the product you have built is a fit with your target market. This is demonstrated primarily by engagement (the people who sign-up or who previously visited, continue to return) and secondarily by growth, ideally based on word-of-mouth or viral growth but effectively converting paid traffic is a great second prize. Other significant accomplishments include: Not running out of money Recruiting and retaining great talent who believe in the founders' vision. Your loved ones not thinking you're as crazy as they thought you were a year ago. I'm happy to talk to you in a call to give you more specifics about what you want to set as your goals more specific to your startup.

Apple specifically precludes anything that can't be delivered via the app from using in-app purchases. So you're free to tie a credit-card to services and real-world fees (think Uber) without paying Apple any transaction fees. Here's Apple's documentation on what they support (and don't allow) for in-app purchases. https://developer.apple.com/in-app-purchase/In-App-Purchase-Guidelines.pdf Happy to help in any way I can. I run a mobile-based startup myself.

Take the # of hours it takes you to do it and charge $50/hour. That's the price. Eventually you can charge $100/hour but that will require a bigger customer. If the customer is small < $1M in gross sales per year - charge $50/hour If the customer id medium < $1-5M / sales - charge $75 Over $5M - charge $100 The challenge you'll face is clearly defining the expectations and handoff so that you're not stuck doing stuff that you can charge for and always getting interrupted from past customers.