I guess you are not even listening to yourself. You are talking abut predicting the future like it is some kind of skill any human being should have. No one knows what the future holds or what the market is capable of in the next minute.
To answer your question, there is no tool to predict the future price of anything. You can only find tools with which you can use to blend with the trend.
There is no way to predict the future price of bitcoin or altcoins. We can not predict the market situation so the price become unpredictable. Just use our knowledge to make the speculation so we will able to decide it wisely.