Rwango

Depoprio Ghost was visiting a Macy's store in Sunnyvale when he noticed small round devices mounted throughout the store—Bluetooth beacons. The realization hit him immediately: he didn't have Bluetooth enabled, so he wasn't receiving any of the deals the store was trying to send him. But he had Wi-Fi turned on. That simple observation became the genesis of Rwango. He asked himself: could he build a proximity marketing device using Wi-Fi protocol instead of Bluetooth?

Launched in 2014, Rwango solved a fundamental problem with existing beacon technology. Most people keep Bluetooth disabled to preserve battery life, severely limiting the reach of Bluetooth-based proximity marketing. Rwango's hybrid Wi-Fi and Bluetooth beacons achieved 10 times greater reach than traditional Bluetooth-only solutions. The beacons themselves were inexpensive ($5-10 devices) mounted discreetly on pillars and high points in retail spaces, with an 80-foot tested range (extensible to half a kilometer with special antennae). The technology worked by detecting Wi-Fi signals from customers' phones and sending them targeted marketing messages—no special app required, just Wi-Fi enabled.

Rwango's acquisition strategy was elegantly simple: they built a website and let product-market fit do the work. When the product was still under development, the team received four inbound leads through their website. These four customers brought with them something massive—500 retail locations that needed the technology. Depoprio later explained the secret: "Customers tell us that they searched for Wi-Fi and they found nobody and we are the only guys in the world who do Wi-Fi based proximity marketing." They had found a blue ocean in a crowded market.

The business model was straightforward: charge retailers $25-30 per location per month, plus $1,000-2,500 setup fees (covering deployment and training on individual instances). By the time of this interview, Rwango was deployed at 500 locations globally and generating around $15,000 in monthly recurring revenue plus additional setup fees. The team had zero customer churn—no locations had been lost, only closed due to the retailers' own circumstances. The 7-person team, all based in India, remained completely bootstrapped with no outside funding. Interestingly, Depoprio was simultaneously CTO of Sustainalize, an AI/ML simulation software company, but focused most of his time on Rwango as "his baby."

By 2018 (approximately), Rwango was profitable and scaling organically. The founder was exploring ICO (Initial Coin Offering) opportunities and blockchain integration to enhance security—particularly relevant given his concern about Wi-Fi vulnerability to hacking in checkout-less retail environments like Amazon's. He was also fielding inquiries from logistics companies and large apparel companies interested in product-level tracking for sustainability and retail applications. At 29 years old, Depoprio was about to marry and remained laser-focused on building a $10M+ company, having worked only three-to-four hours of sleep per night to manage both ventures.