Sisters Launch Coaching App

Maria and Anastasia are instructors at the Hayden Lake Junior Golf Academy.

Two sisters from Hayden Lake, Idaho have used their professional golf expertise to create an innovative app designed to take a golfer’s game to the next level.  

Goach, which is derived from “golf coach,” was designed with the aspirational mantra, “Your fastest route to lower scores,” and created with the mission to drop one million strokes from the game of golf. 

Using artificial intelligence and advanced analytics, Goach helps golfers achieve their goals in a simple, understandable way.  

“Goach is your personal coach that follows your every round, evaluates every part of your game and creates a personalized training plan for you to reach your scoring goal,” said Maria Kostina Angel, Goach co-founder and golf instructor/coach at Hayden Lake Country Club.  

The mobile app, two years in the making, was developed by Maria and her sister Anastasia Kostina, along with David Angel, a software engineer. Maria and Anastasia both played golf collegiately at Washington State University and professionally on the LPGA’s Futures Tour (now called the Epson Tour).  

Anastasia (left) and her sister Maria (right) both competed professionally on the LPGA Futures Tour, with Anastasia also playing on the Ladies European Tour. Anastasia also played for the Washington State University women’s golf team, serving as captain her senior year. In 2022, Anastasia was inducted into the WSU Athletic Hall of Fame. Both sisters now give golf instruction at Hayden Lake (Idaho) Country Club.

“Playing competitive golf, I learned the importance of analyzing performance and targeted training in an effort to reach my full potential,” said Anastasia, who also played on the Ladies European Tour and is now director of Hayden Lake’s Junior Golf Academy. In 2022 she was inducted into the WSU Athletic Hall of Fame.  

With other golf apps on the market, the trio saw a need for a more user-friendly app to help golfers better understand their game and to learn how to train and practice with purpose.  

“We wanted to build a golf software product that would truly deliver results and lower scores,” said David. “I’ve coupled my passion for both golf and software development to help build Goach.”  

Goach asks users to establish a golf goal and to enter data during each round played. The program is engineered to take less than 10 seconds per hole to log in requested data. Through data entry, the user is then provided with a Goach Report that defines the player’s strengths and highlights areas that need improvement. Goach then runs each report through its proprietary algorithms, analyzing more than 10,000 data points to build a personalized and targeted training plan toward reaching the user’s desired golf goal.  

Goach includes information on more than 30,000 golf courses, with a custom course option. It can be downloaded on the Apple App Store with a 30- day free trial.  

For more information visit  

Contacts: David Angel, Maria Kostina Angel, Anastasia Kostina [email protected], 208-691-0483.