A Magento theme can be either Free or it could be custom designed based upon your desire. There is a great disparity between all magento , let’s focus deeply how both are different from each other .it will help one to decide which one is more effective to their ecommerce website.Down here, I tried to elucidate both of them deeply to make you understand everything in each of them.Free Magento themes;Advantages
1. The first known thing is that, it is free! This is why multiple developers go for it.
2. It is very simple and easy creates your website using it because it doesn’t need to be coded from zero. Very quickly, you can create a website by simply downloading magento theme of your choice and use and that’s all!
3. They all are very compatible with nearly all versions of Magento, therefore need no doubt about their workabilityLimitations
1. Chances are high that the same theme could have been used before for some other website! There are more chances that you can find multiple websites on the internet that have previously used theme that you have picked, which means users of your website may not find it worth to see and might get wrong impression of your website.
2. It is not possible to get it upgraded or customize to adopt the current trends which make it least compatible to work with most recent version.
3. Chances that you might not get any technical assistance in the event of fatal.
Custom Designed Magento Themes;Advantages
1. Get a completely fresh and new concept for your website, good look and feel of your online store! You can add your own creativity in it to make completely unusual and uncommon from the others.
2. Easily customizable and can adopt any changes, which allows you to cop up with every current trends and empowers you to upgrade it as per your needs and deeds!
3. You can get technical support and help in the event of fatal and may get it resolved competently by professionals.
4. SEO compatible!
Limitations
1. More expensive but can be affordable if you hire the right custom software development services.
2. Require time to get it well shaped. Consume a lot of development time.
3. Little bit slower compare to free themes.Subsequently from the discussed themes you can easily choose whether to take free magento or custom designed magento themes.