Everything you are looking for is available with our product http://www.ChatNox.com
We could talk further if you can come on our website for a chat and discuss. You can also write to me nicole at chatnox dot com.
To answer your questions, FYI -
Reports on how many chats we receive daily - Yes
Reports on what time of the day we receive the most chats - ...
Product search/comparison via Google Shopping. Just scan/speak/snap and you can search Googles database for the product. You can see the prices among Google Shopping partner retailers along with ratings and reviews.
More of a focus on online retailers as opposed to physical retail locations but it tells you if the item is ...
If the merchant supports it PayPal gives exactly what you are looking for with the advantage that the payment method is not shared with anybody - much safer.
You shop for something
Click on Pay with PayPal
PayPal gets a notification that the merchant is asking you for the sum
You input to PayPal your password
PayPal tells the merchant that you have paid, ...
Even though it's not specifically designed for this, TickTick will do what you want. Simply use tags to specify which stores an item is available at.
It does not have any functionality to meet your optional feature (optimizing your shopping).
It is cross-platform, and works on Windows, Android, iOS, and macOS. It also has a good web-app (which is ...
I have heard good words about litecart. It's simple it runs in PHP, HTML5 and jQuery and seems to have faster files and database table to manager than the most common eShop Packages.
Have a look
You can use PrestaShop:
Self-hosted, opensource and free to use commercially
Easy to use
Variety of payment options, including Paypal
Modular (but not all modules all free -> that's how PrestaShop makes money)
mostly written in PHP
support for bank card payment and payment from paypal
tons of other e-commerce features
Pretty active dev community
I would look into PhotoStore as an option,
PhotoStore by KTools (Commercial, starts at $149 - Lifetime updates)
PhotoStore is a complete professional solution for selling your
photography, stock photos, artwork, prints, products, videos and other
digital files. PhotoStore is completely automated including a backend
management area that allows you to add ...
SAP Hybris Commerce
Disclaimer: I am working for SAP
From Hybris perspective 35 000 products is a small shop. Hybris can do everything you want and through extensions you can add functionality. But it has a price tag ;-)
Depending on your future plans this might be something to look at.
Not sure if it would be an option for you to consider, but Drupal (one of the typical alternatives for Joomla), has an impressive Commerce Kickstart" solution which I think would get you pretty far in what you're looking for. Here is a quote about it:
Commerce Kickstart is the quickest way to get up and running with Drupal Commerce. It includes the latest ...
Welll, paypal buy buttons do a bunch of what you want. This is closest to free because:
Simple html web site (use the most basic hosting that works for you)
paypal account has transaction fees, but no monthly fee
To run a real store/cart, you need a hosting plan that supports a real ecommerce system. For example, a bluehost account with zencart or magento ...