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Please share "Products/Prices Comparison" Website & Mobile app complete project requirements in message board to plan to develop in your budget.
We have already designed & developed many "Products/Prices Comparison" Websites, Android & iOS Mobile apps similar to your requirement in the past. Relevant past work and demo shall be shared upon your response.
We are a team of 100 developers each having an experience of more than 8+ years. We design templates & themes, develop websites, web applications as per the functionality requirement in PHP, Magento, Joomla, WordPress, Opencart and Android & iOS Mobile apps also.
Respond to discuss about your requirements & get demo.
Regards,
Martin