More or less both platforms have similar features, however they differ in some key aspects.
Shopify: 2% on every transaction by Shopify+ 2% Payment Gateway Fees (Usually Razorpay). (~₹4000 / lakh)
Infobahn: Only 1% – 2% Payment Gateway Fees (Usually Razorpay), No Additional Transaction Fee by InfoBahn. (~₹1500 / lakh)
Shopify: Shopify uses a proprietary software, meaning if you ever wanted to leave Shopify you can take your data but not your website. So you will have to re-create your entire website from scratch and re-upload all your products to a new platform.
InfoBahn: InfoBahn uses WordPress & WooCommerce which means you can take control of your entire site software (codebase). This is especially helpful when you want to built very specific and custom features by hiring a developer. Though a moderate fee is applicable but having that option is important for the future of your business.
Both services manage the technical aspects like maintenance, security et cetera for you.
Shopify: Shopify offers 7-9 free themes and about 90 paid themes usually costing you $89 to $200/Year.
InfoBahn: Since Infobahn uses WordPress you can use any free or paid WordPress theme on your website. Average cost of premium WordPress theme is $59/Year. For most stores the free themes are usually sufficient.
Both platform offer all essential features such as Inventory Management, Staff Accounts, Order Management, et cetera.
Shopify: While more or less the features are the same, you have to buy additional extensions for COD rules, reports & analytics & returns management.
InfoBahn: COD rules, reports & analytics and product returns management come as core features with all plans. Since InfoBahn uses WooCommerce, WooCommerce has 3 times more extensions than Shopify.
Apps / Extensions
While both Shopify and InfoBahn E-Commerce offer free & paid extensions the pricing could be significantly differ.
Shopify: The cost of Paid Shopify Apps could range between $5 – $99 per month. A lot of widely used extensions fall in the range of $15 – $25 per month.
InfoBahn: Since InfoBahn uses WooCommerce the cost of WooCommerce extensions could range between $20 – $300 per year. A lot of widely used extension fall in the range of $39 – $99 dollars per year.
Shopify: The basic Shopify plan starts at ~₹2200 ($29) per month + ~4% Per Transaction
Summary: ~₹2200 + ~₹4000 per lakh
InfoBahn: The basic InfoBahn plan starts at ₹1249 per month + ~1.5% Per Transaction
Summary: ~₹1250 + ~₹1500 per lakh
In addition to that Shopify extensions are more expensive than InfoBahn (WooCommerce) extensions.
Shopify is a good software but it could be expensive in the long run, in terms of transaction fee, premium themes and shopify apps.