ebay estimations
How much would it cost to build an e-commerce website like Ebay?
Ebay is an application that allows every user to signup, provide shipping info, and buy everything they need. If needed, a user can also start selling their own items as well - he just needs to make a couple of photos, set description and price, and he is ready to go!
To help users find products faster, eBay also provides a sophisticated filter and sorting mechanisms, allows a user to add items to a watch list, and so on.
If you would like to create an app similar to eBay - let's figure out how much time it can take, and all the cost to run a website like eBay. If you don't need some of the features - just check those items off, and it will update the estimation.
hourly rate
let's select an hourly rate first:

$45 per hour

Strong middle developers. Way more experience, much better understanding of possible edge cases and weak points in the project, so they can make sure project will be stable and fast.
platforms
select what you target

Registration and Account setup

As with any other app, a user will need to sign up before making purchases.
To save user's time, and increase conversion, the registration process is straightforward - just email, name, and password. However, when a user is ready to make a purchase, they will also need to fill in the details about their payments, shipping address, and so on.
To find the cost of website like eBay, we need to know which features you would like to include. The more features app has - the moe time and costs we will need for its development.
Registration and Account setup estimates
select only features you need
InterfaceLogicBackendTotal (h.)
44412
44614
64414
64414
44210
76417
64414
0077
66416
001111
Estimated time (hours)208
Estimated costs (USD)$9360

Products Search

One of the main parts of the eBay application is a super powerful and customizable search. Products can be searched by categories, by name, description, and so on.
To help a user find the best products even easier - there are sorting options that would help you show newest or cheapest options, and filter, that would help you narrow down the search even more.
The price of cost to build a website like eBay depends on a number of features selected. If you don't need some of them - just exclude them from estimation! It will decrease the price and development time.
Products Search estimates
select only features you need
InterfaceLogicBackendTotal (h.)
76619
64414
4228
64212
62210
2428
4228
Estimated time (hours)138
Estimated costs (USD)$6210

Buying Products

When user found what he needs - he will be able to place his bid, or if possible - buy the product right away.
When done, a user can view products in his cart, or start a checkout process.
The checkout process is very simple: user already can already have shipping addresses, and payments added, so he will only need to select which one he would like to use, add comments to order, and order will be placed!
Buying Products estimates
select only features you need
InterfaceLogicBackendTotal (h.)
116623
64616
4228
64414
117725
64212
44210
64212
76417
64414
Estimated time (hours)263
Estimated costs (USD)$11835

Selling Products

Selling products on eBay is an easy process. Basically, a user needs to fill out all the info about his products: general description, upload photos, provide shipping info, add the price, and make sure everything is fine after.
To simplify the communication, eBay has a chat, where customers can ask questions about products, shipping, prices, and more.
We are almost ready to show you the cost to set up a website like eBay! Just figure out which features you will need, and scroll to the bottom of the page to find the price and development timeframes!
Selling Products estimates
select only features you need
InterfaceLogicBackendTotal (h.)
64414
4408
46414
4408
2204
76619
44210
76417
76417
711725
Estimated time (hours)241
Estimated costs (USD)$10845
Selected platformsiOS and Android
Summary:
Total price for an app similar to Ebay (for both iOS and Android) with a selected set of features would be around $38,250.
Development itself would take 850 hours (or around 26 weeks).
Total Costs
Hourly rate: $45 per 1h.
$38,250
Total Time
850 hours
~26 weeks