Water is one the most important sources of survival for living creatures on earth. But the amount of water available for drinking is only 1% of total water bodies available on earth. Solar still is one such technique of water purification by the use of naturally available sunlight or solar energy. Though this method has various advantages, its major issue is low productivity. The simple solar still gives yield of only 2.5 to 5 liters per m2 area per day when maximum amount of solar radiations are received. Hence integrating solar still with external devices such flat plate collectors, solar ponds, focusing mirrors, concentrating collectors etc. can help to improve the distillate output. In this review paper, detailed review of solar still integration with flat plate collector is discussed with the aim to increase its productivity or fresh water yield.