Ten million sales and counting - those were the great numbers of Samsung fans who scooped up the Galaxy S4 only four weeks after its global release date.

While downright beautiful and powerful, the GS4 is hardly a perfect machine and its flaws could somehow distract users from relishing the handset's brimming features.

GS4 tools, however, are readily available out there not only to complement its strengths but also to fill in the voids created by a few of Samsung missteps. And most of them are free.

The Jelly Bean Keyboard app

Google's Jelly Bean 4.2.2 boasts of a very functional smartphone keyboard that has the best auto-correct features to date, that is according to BGR News. However, Samsung would want the world to know that the GS4 is mainly Galaxy breed to it removed the stock Android typing companion.

Those who find the Samsung alternative as mediocre and want to revert to the raw Android tapping experience are in good fortune. Thanks to the Jelly Bean Keyboard that is downloadable for free via the Google Play Store.

This is the closest that you can get to vanilla Android, BGR said, and the best part is no purchase is required to again enjoy one of the best that Google offers, even within Samsung's imposing environment.

Snapdragon BatteryGuru from Qualcomm

Most GS4 makes will be powered by Qualcomm's Snapdragon CPU so the company figured why not deploy a companion app that is designed to optimise the chips' raw power while ensuring efficient mobile device energy use.

BatteryGuru is simple to use and can be configured to behave in exactly the same manner a user deals with his or her phone. Tweak the settings to only activate apps and handset functions such as Wi-Fi connection when needed only and users can be assured that no battery juice is wasted. The software is available for free, also from the Play Store.

The GS4 Wireless Charging Kit

The last of the tool list comes from a UK seller named CloveUK, which is set to sell a Wireless Charging Cover and Wireless Charging Pad by June, according to Gotta Be Mobile. For British buyers, the products will be sold at £29.16 and £41.66 but no word yet on what will be the tag price for international or Aussie customers.

Samsung has promised that the GS4 wireless charging tool would come out shortly after the gadget is released. Yet those who are eager to enjoy the convenience of recharging their smartphones minus the annoying spaghetti wires can snap up this kit starting next month.