The app is fully the same as ChebyshevTrendPro but based on Yahoo Finance free data feeds only. GoogleFinance intraday data feeds, which provide realtime data for NASDAQ & NYSE executed symbols and for Bombay Stock Exchange, National Stock Exchange of India, Shanghai Stock Exchange, Shenzhen Stock Exchange listed symbols against Yahoo 15-20 minutes delay, not available in that version.

YTrend uses Chebyshev polynomials to create trend lines against Yahoo Finance (intraday/daily/weekly/monthly) stock charts.
The innovative trending method is based on creating polynomials using a modified Gaussian least squares fit that essentially acts as a noise filter, removing random fluctuations from the chart data and finds the real underlying trend.
The main benefit of using this trending method is an almost complete absense of lag, when compared to moving average trends.
Chebyshev Trend Pro includes buy/sell signals. An unique method has developed specially for app to provide these signals.
Trends can also be compared with classical MA, Bollinger Bands, Parabolic SAR & volume indicators, MACD, Chaykin, BB%B, slow stochastics, RSI, CCI & ADX oscillators and more (check v.2 manual appendix #2 at the support site for more details).
Other features include the ability to save stock symbols in a portfolio by groups of interest and adjust the trend dates, moved crosshair & Fibonacci retracement.
You can try Chebyshev's trend, a free version of the app, to test before making a decision to purchase YTrend.
As stock data is sourced from the Yahoo Finance website, only stocks available on the website can be trended in the app.
A data connection is required to access the Yahoo Finance website, however the app will perform best if a WiFi internet connection is available.
If you are interested in charting against realtime data for NASDAQ & NYSE executed symbols and for Bombay Stock Exchange, National Stock Exchange of India, Shanghai Stock Exchange, Shenzhen Stock Exchange listed symbols check ChebyshevTrendPro app please.

What's New

Version 2.8.5

iCloud support is added at last! Now you can prepare groups of symbols on one device, export them to iCloud and import to any other iPhone or iPad!

Ratings and Reviews

best so far


I cant put into words how much more relaxed I feel now that I have an app that will pick up a change in the market trend. I was tought these same statistical methods in college but it had never been feasible to try to use them with just a calculator before. Now instead of trying to take into account the VIX and the news and technical indicators etc. I can just ride the trends in the market. I would like to see the app develop a really cool interface also.

Liked it before. Now not working


I liked it a version ago, so much that I bought the in-app super-signal upgrade. This version has stopped working altogether. It shows a chart but no trend signals. Note that I rely on Asian data, but it doesn't work on index data or the sampled American IT stocks (which you supplied) either, or American ETFs. FX seems ok, but I don't use that. Basically, whatever you did last time, broke it.

Does not adjust prices for splits!


I put in TEL symbol and I looked at a weekly chart, which showed a dramatic drop in January and a very compressed (useless) ticks after that. I checked Yahoo's site (which provides data to this app); sure enough, there was a 3:1 split in January. Graphing of non-adjusted prices does not make any sense (tables with numeric figures are used for that).
Please fix this ASAP!


7.1 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© Igor Vlasov
In-App Purchases
  1. SuperSignal! $2.99
  2. Fibonacci Bollinger Bands $0.99
  3. X-Wave Elliot Indicator $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like