Never pay too much for an item due to bad timing and avoid "fake" deals by checking a history of price fluctuations before buying any item online. MOSC is a mobile app that gives you access to a historical price chart of desired items, helping you to know if the current price is a good deal or not. If the price is higher now than it was last month, consider waiting before finalizing the purchase. As soon as an item is added to your MOSC cart, the tracking of the item starts and you get notified in real time in case of discount. If you add an item already tracked by a member of the MOSC community, you will access its price history. Therefore you could decide to finalize the purchase quickly if the price is in a downward trend, or decide to leave your item in your MOSC cart in order to wait for a price drop if the price is in an upward trend.