Daryna Kulya

Co-Founder at Quo (formerly OpenPhone). Ukrainian-Canadian in SF. Love exploring new hiking trails.

11 Reasons Why Your Text Message Didn't Get Delivered

Communication, Insights

April 27, 2026

17 Reasons why your text message didn’t get delivered

Unplug for holidays

Communication, Tutorials

November 17, 2025

How to unplug for the holidays without losing customers

How to legally record phone calls

Communication, Tutorials

January 22, 2025

How to legally record phone calls in the US and Canada

How to share a business phone number with your team

Productivity, Tutorials

January 15, 2025

Share phone number: Call and text as a team

How we got our first 1,000 customers

Behind the scenes, Inside Quo, Startup

November 1, 2024

How we got our first 1,000 customers

How to call Canada from the US for free

Tutorials, Work Internationally

October 23, 2024

How to call Canada from the US & how much does it cost?

What is a toll-free number & how do you get one? - OpenPhone

Communication, Insights

July 11, 2024

How to get a toll-free number for your business

How to prepare for YC interview

June 17, 2024

How to prepare for your Y Combinator interview

The best online fax services

Communication, Insights

January 2, 2024

The Best Online Fax Services

OpenPhone 2023 lessons from Daryna

Behind the scenes, Inside Quo

December 21, 2023

Inside Quo: Lessons from scaling a startup in 2023

OpenPhone fifth birthday

Behind the scenes, Inside Quo

May 8, 2023

5 lessons learned in 5 years of building OpenPhone

how to call UK from US by Quo

Tutorials, Work Internationally

February 8, 2023

How to Call the Uk from the US: Step-By-Step Guide

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