
Feature Flag Management Built for Developers
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If you only have a few minutes to spare, here’s what investors, operators, and founders should know about DevCycle (W14).
DevCycle was the second act of Taplytics, a Toronto company that began with mobile A/B testing and spent more than a decade controlling what software users saw. In 2022, the team turned that experience into a developer-first feature-flag platform built around the OpenFeature standard.[1]
Dynatrace acquired DevCycle in January 2026 because feature flags were becoming part of observability's control loop. DevCycle could change production behavior instantly; Dynatrace could measure the result. The deal validated DevCycle's pivot while showing why an independent flag dashboard was strategically incomplete.[2]
The company that became DevCycle started as Taplytics. Aaron Glazer led the original business, while Andrew Norris, Jonathan Norris, and Cobi Druxerman are the founders YC now associates with DevCycle. The team joined Y Combinator's Winter 2014 batch and initially sold A/B testing for mobile apps.[3]
Taplytics let a product team change an app experience, split users into cohorts, and measure behavior without waiting for a complete release cycle. By May 2015, it had expanded into analytics and push notifications. Glazer described the ambition as “a full-blown mobile optimization solution” and said the company wanted to “drive higher mobile engagement and higher monetization through the entire user lifecycle.”[4]
The company raised a $2.4 million seed round from YC and a long list of operator-investors, including Alexis Ohanian, Paul Buchheit, Mark Pincus, and Kevin Hale. Glazer said Taplytics had delayed announcing the already-closed round because “we’ve just been putting all of our resources towards product development.”[4]
Over time, the mechanism beneath experimentation became the larger opportunity. Feature flags decoupled deployment from release: teams could ship dormant code, expose it gradually, test variants, and turn it off without another deployment. In March 2022, Taplytics raised $5 million to launch DevCycle as a separate feature-management suite for engineering teams.[1]
DevCycle gave developers a control plane for features already present in deployed code. An engineer wrapped a behavior in a flag, created targeting rules, and exposed the feature to selected environments or cohorts. The team could increase exposure gradually, compare variants, schedule a release, or disable a problem without rebuilding the application.
The platform included SDKs for common languages, centralized flag configuration, real-time updates, permissions, audit logs, experiments, reusable targeting, and integrations with GitHub, Jira, Terraform, Slack, webhooks, and Vercel Edge Config.[6] The product also emphasized flag cleanup, a necessary defense against old branches becoming permanent code debt.
Its decisive design choice was OpenFeature. The CNCF project standardizes the application-facing API for feature flags, separating instrumentation from the vendor that evaluates a flag. CNCF accepted OpenFeature in June 2022 and promoted it to Incubating in November 2023.[5] DevCycle publicly committed to the standard across its supported languages and onboarding in 2024.[7]
That openness reduced customer lock-in, but it also made DevCycle easier to combine with another control system. Dynatrace could consume OpenFeature data and join a flag change to latency, error, or conversion signals without forcing customers to replace every SDK.
DevCycle sold to engineering, platform, and site-reliability teams that released frequently enough to need runtime control. Taplytics had originally addressed product and marketing teams; DevCycle moved the buyer and daily workflow closer to code, CI, and incident response.
Read the complete post-mortem, the rebuild playbook, and the exact reasons DevCycle is still worth studying now.