JustCall

Gaurav Sharma, a chemical engineer turned founder with two prior exits (most notably selling Hello Society, an influencer marketing platform, to the New York Times in 2015), wanted to build a product that solved a real problem for sales and support teams. The friction point was clear: teams were manually logging calls, reconciling data with CRMs, and losing critical customer interaction history. He wrote the first line of code in September 2016 and launched JustCall on Product Hunt in December 2016. The MVP cost roughly $20k to build—minimal for a SaaS product, even then—and Gaurav was determined to bootstrap from day one.

The Product Hunt launch didn't immediately convert, but it seeded awareness. The first paying customer came in March 2017, three months after launch. The hook was simple: a cloud phone system that integrated with existing CRMs and automated the tedious work of call logging and recording. Gaurav priced it straightforwardly—$25 to $50 per user per month depending on features—and set a unique acquisition strategy: a 70% discount on the first month instead of a free trial. This ensured he wasn't bleeding money on freemium users while still converting prospects to paying customers.

The early sales motion was bottlenecked only by capacity to run demos. Gaurav and the team were doing 200+ demos per month and converting roughly 60% of them. No fancy sales reps with commission structures—just solid inbound interest and solid product-market fit. By the time of this interview, JustCall was onboarding 150 new customers per month at an average contract value of $150/month.

The biggest win was organic growth. Gaurav never spent money on advertising. Instead, he relied on integrations that brought free customers, natural inbound interest, and word-of-mouth. Growth came from two sources: new customer acquisition and expansion revenue. Teams would start with a support use case, expand to sales, and upgrade from $25 to $50 per user. Over the past 12 months, JustCall achieved 106% net revenue retention—adding back expansion revenue faster than churn.

The company's CAC was roughly $150-$200 to acquire a $150/month customer, payback in month two. No need to spend aggressively on growth when you have this math. Churn was healthy: 3% monthly revenue churn (36% annualized), offset by the 42% expansion revenue, yielding that positive 106% NRR.

One year before this interview, JustCall was doing $80k MRR. Now it's at $240k MRR—three times growth in 12 months. The team has grown to 35 people (14 engineers, 8 newly hired for sales and support). With a 60% EBITDA margin on $240k MRR, Gaurav is netting roughly $150k in free cash flow each month. He's disciplined about capital: he had raised $25k in debt from Stripe and was exploring another $50-60k from Clear Bank to fund agency hires, but explicitly rejected venture capital. "We are liking the debt part of it," he said. His thesis: if he can generate ROI greater than the cost of debt, it's free money. He raised enough cash ($250k-$500k) to fund 24 months of salaries and rent, giving him runway to invest in growth without existential risk. By 2020, the plan was to finally spend aggressively on customer acquisition, but only once the foundation was unshakeable. Serving 1,600 customers and processing thousands of calls daily, JustCall had become a quiet, profitable machine.