Hello Safak
I'm Parag with Sigma Solve. I hope you are doing well!
We have a small team of E-commerce experts that can develop online stores in Shopify, Magento, nopCommerce, 3d Cart, Volusion, BigCommerce, Prestashop, X-cart, Zencart, ASPDOTNETStorefront, Open Cart etc
Also, we build iOS & Android mobile apps both natively & using cross platform tools using PhoneGap, Xamarin, Telerik App Builder etc. We can be your ONE STOP SOLUTION for your business needs.
We deliver all our services with highest work quality at cost effective rates.
We can definitely help you in building a custom app for your store. If you are interested, please contact me at pshah@sigmasolve.net with your requirements. I will be happy to submit our best proposal.
Look forward to hearing from you soon!
Thanks
Parag