Apptimize

Overview

Apptimize brought web-style experimentation to native mobile apps. Founded in 2013 by Nancy Hua and Jeremy Orlow, its SDK let product teams change interfaces, test variants, personalize experiences, and control feature rollouts without waiting for another app-store release.^[1]

Airship acquired Apptimize in August 2019 to join experiments with cross-channel messaging. The product reached hundreds of millions of app users, but founder Nancy Hua's later post-mortem describes an organization constrained by founder heroics and a “finite game” view of success. The product exit and the founder outcome were not the same story.^[2]

Founding Story

Nancy Hua grew up in a working-class immigrant household, earned a scholarship to MIT, and graduated in 2007 after studying mathematics and writing. She became an algorithmic trader at GETCO in Chicago and New York, where she built models and led a fixed-income quantitative strategies team.^[3]

The career changed after both parents became ill and her mother died from lung cancer. Hua told MIT News, “I tried to think about what needed to happen for me to feel like I was living a fulfilling life,” which led her to leave finance in 2012 and move toward a company of her own.^[3]

Hua met engineer Jeremy Orlow through mutual friends. They focused on a mismatch between the web and mobile. Website teams could ship and test continuously, while native-app teams bundled decisions into releases, waited for store review, and carried the risk of a broken build. Hua argued that apps were “on average terrible” because device fragmentation, small screens, intermittent connectivity, and slow release cycles made improvement difficult.^[1]

Apptimize joined YC S13. Hua put in the first $50,000 before incorporation, then used YC funding to pay consultants. At six months, the company had zero revenue and only two unpaid employees, yet Hua raised $2 million in convertible notes after Demo Day.^[4]

Timeline

• 2012: Hua leaves algorithmic trading and begins exploring a startup.^[3]
• 2013: Hua and Orlow found Apptimize and join YC S13.
• 2013: Hua raises $2 million in convertible notes after Demo Day.^[4]
• 2018: Hua steps down as CEO and writes a private founder post-mortem.^[5]
• March 2019: MIT News reports that customer apps reach about 300 million monthly active users.^[3]
• August 2019: Airship acquires Apptimize for undisclosed terms.^[2]

What They Built

Apptimize put an experimentation and feature-control layer inside native apps. Teams installed an SDK, defined goals and audiences, created variants, and measured conversion, engagement, or retention. A visual editor let non-engineers change layouts, calls to action, and flows. Programmatic tests handled changes that required code, while dynamic variables let teams alter configured values after release.

The platform also managed risk. Feature flags separated code deployment from user exposure, staged rollouts limited blast radius, and instant updates let teams disable or adjust behavior without another store submission. Hua gave VentureBeat the example of customers changing Black Friday deals in real time.^[6]

Apptimize later expanded beyond native iOS and Android into web, mobile web, hybrid apps, OTT, and server-side experiments. It connected with analytics tools and supported code-free event instrumentation. The expansion addressed customers whose journeys crossed channels, but it also moved the company into a crowded market of web experimentation, product analytics, feature management, and marketing personalization.

Airship's rationale was to connect Apptimize's experiments with push, SMS, email, wallet, and in-app messaging. The combined system could test both a product experience and the message that brought a user into it.^[2]

Market Position

Target Customers

Apptimize sold to mobile product managers, marketers, and engineers at consumer brands. The best customer had a large enough audience to run valid experiments and enough release friction that remote control created material speed.