Revyl

Revyl is a mobile testing platform that serves as the mobile source of truth for high-velocity mobile teams. It enables engineers, product managers, and designers to run real mobile flows on live devices, capture exactly what happened, and turn every session into shared evidence for the entire team. The core value proposition is eliminating the guesswork from mobile verification by providing a runtime record that proves changes work as intended. By integrating directly into development workflows, Revyl helps teams ship with confidence and avoid costly rollbacks. The platform is designed for teams that need rapid, reliable mobile testing across iOS and Android builds.

The concrete problem Revyl solves is the verification lag that occurs when mobile teams ship quickly but lack runtime proof. Agents and CI/CD pipelines move fast, but mobile apps require real-world testing on actual devices to catch issues. Bugs, reruns, and scattered evidence compound every sprint, making "what broke?" the most expensive question a team can ask. Flaky checks force engineers to debug the test rather than the app, and late bugs pull product and design into hotfixes and rollbacks. Revyl addresses this by providing a central source of runtime evidence that reduces the drag on team velocity.

The first major feature is Live Device CLI, which gives agents live mobile environments directly from the command line or MCP. Users can spin up cloud device sessions in seconds, install builds, hot reload, tap, type, swipe, screenshot, and verify changes while development is still moving. This enables immediate verification without waiting for manual testing cycles. The CLI provides a real-time WebRTC stream with low latency, allowing engineers to interact with the device as if it were in their hands. This feature is crucial for teams that need to validate changes on real builds quickly.

The second major feature is Agentic Mobile Testing, which allows teams to define end-to-end mobile workflows in natural language. Users describe steps like "tap Where to? and enter SFO Airport" and the system executes them on iOS and Android builds. Each step is grounded with pixel coordinates, type commands, and assertions, catching regressions with replayable evidence. The agent provides a detailed log of each action, including device logs and timing. This makes it easy to create automated tests without writing complex scripts, enabling broader coverage across flows.

The third feature group is Replayable Evidence, which captures every detail of a test or session: screenshots, video, logs, action traces, AI reasoning, and shareable reports. After a run, the entire team can inspect what the agent saw and did, understanding exactly why a step passed or failed. This evidence is stored with the session and can be replayed later for debugging or compliance. The combination of visual and textual data makes it easy to pinpoint issues without reproducing them manually.