Innovative trends + professional data feeds in the palm of your hand. Don't miss another day of gain!

The power of original Chebyshev Trend Pro bestseller is doubled by pro IEX data feed now. Data sourced directly from AMEX,BATS,NASDAQ,NMFQS,NYSE,NYSE ARCA,NYSE MKT,OTCBB,OTCMKTS,PINK,SHE,SHG,Cryptocurrencies.
Chebyshev Trend Pro - IEX ed. gives you the real, underlying trends of all the stocks showing in IEX. Save stock symbols in groups, adjust trend dates, get buy and sell signals using different methods, compare with other indicators and even predict future using Fourier extrapolation! Everything you need to keep an eye on your portfolio is here. Click “...More” to learn why you should download this App today!

Fantastic App
“...this app gives me “buy” and “sell” signals that make it so EASY... I’m not a day-trader, I just want to know when to be in the market and when to bail before the hammer comes down! If you follow the buy and sell signals, you will get all of the gains when a stock or mutual fund goes up and none of the losses when it goes down. This app is easy-to-read, easy-to-understand and it will keep you from holding on to a fund in those ugly downturns. Buy this app!”
- Porter

«First positive trend direction program I have seen nicely designed. The signals your program is generating are really trustful.»
- Dieter

Regardless of whether you are professional trader or not, you need to watch the market and make your own decisions about your portfolio. You have a goal and a target and you plan to handle the buying and selling of stocks yourself.
Thanks to Chebyshev Trend Pro - IEX ed., you can keep an eye on those important trends that mean the difference between profit and loss. If a stock or index is listed in IEX, you can quickly and easily see its intraday or historical chart. There is absolutely no lag when compared with moving average trends, and the app’s modified Gaussian least squares fit removes random fluctuations to provide the real picture of how a stock is performing. Other trending is based on Kalman filtering and minimises repainting. And even you can look to the future with prediction based on Fourier extrapolation.
When you download Chebyshev Trend Pro - IEX ed., you’re putting an innovative trending tool on your iPad or iPhone. You can organize your stock symbols into groups and adjust trend dates, too. Scan possibility allows you to cast a glance all stocks' movements in the group.
The app’s data comes directly from IEX, so any symbol listed there is accessible for trending in Chebyshev Trend Pro - IEX ed. You get up-to-date data according to time frame you selected. You’ll always have a pulse on current trends.
If you’re the cautious type, or simply want to kick the Chebyshev Trend Pro - IEX ed. tries before subsciption, simply go ahead and download it for free! If you will like it you can subscribe after 30 days trial period.
So are you as informed about your stocks as you should be? Are you buying and selling at the best times? Find out for sure by downloading Chebyshev Trend Pro - IEX ed. now. Don’t lose another day of gains.

Current version provides subscriptions on monthly basis only.
Title of service is Monthly subscription
• Length of subscription is one month. During this month you will be provided with direct data from IEX.
• Payment will be charged to iTunes Account at confirmation of purchase
• Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period
• Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal
• Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase
• Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable
– A link to the terms of use:
– A link to the privacy policy:

What’s New

Version 1.5

Bug fix: data was not shown on iOS13 devices.

Ratings and Reviews

3.5 out of 5
2 Ratings

2 Ratings

Kitty litter 123 ,

Need improve

please FIX IEX data errors

Edited: on March 26th your 3 hour and 4hour data no longer appearing please fix.. the timeframes from 2-4hr disappear in morning says “ data retrieving error” then you don’t get to see the error go away till afternoon at 4pm

Edit: the lightning scan of tickers stopped working .. March 27th

Update oct 4th 2019 : App stopped functioning all together no more data being provided for charts

App Privacy

The developer, IGOR VLASOV, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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

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