Igor Vlasov today released Chebyshev Trend Pro 1.2.1 for iPhone, iPod touch and iPad users. The application is a recent launch that depicts the true story of a Yahoo Finance stock trend. A complete absence of lag acts as a noise filter, removing all of the random fluctuations and showing only the real, underlying trending. Users are able to view a stock’s S/R line, buy and sell signals, trend comparisons and more. The app also allows the grouping of symbols and adjustment of trend dates.