The offer provides 100MB+ of free data per day to users, particularly in Africa, to help browse for free, check social media, and read news.

You do not need this for a modern iPhone or Samsung Galaxy. You need this for:

The old version of Opera Mini, a mere 121 MB in size, was a marvel of engineering back in the day. It promised to bring the full web experience to your pocket, without breaking the bank (or eating up your entire data plan). With its proprietary compression technology, Opera Mini managed to squeeze down webpage data, making it possible to access even the most data-hungry sites on a low-bandwidth connection.

The classic grid of shortcuts that makes accessing your favorite sites instantaneous.

As a 2015 browser, this version will not render modern websites with complex JavaScript, CSS3, or high-definition media properly. It is best used for text-heavy sites, basic navigation, and maximum data saving.