Options traders buy or sell crypto at a predetermined time frame and a specified price. This means that knowing when the price of a selected coin has reached an all-time high or low can be an important signal for either selling or buying more of that coin. CoinMarketAlert gives you an app that allows you to receive a notification whenever a coin surpasses an all-time high or low. You can even go as far as setting the alerts to be received in your mail within the past 24 hours, 7 or 14 days.