Real-device testing in your pipeline
Functional and regression testing on real, fully certified devices, reproducible enough to live inside CI/CD.
Pack A · QA & Synthetic Monitoring
Emulators and virtual devices are approximations, and the most protected apps refuse to run on them at all. Flows ship untested, and the first report of a broken payment comes from a user.

Functional and regression testing on real, fully certified devices, reproducible enough to live inside CI/CD.
SMS one-time codes, contactless payments, QR onboarding, BLE pairing: the journeys your users actually perform, tested end to end on real hardware.
Banking and government apps refuse emulators and modified devices, so labs never see them run. On real, fully certified devices they install and run as they would on any user's phone, and QA finally happens.
After release, the same user journeys keep running on real hardware, on a schedule. When a payment or a login breaks, you find out from Sentinel, not from your users.
Point the AI at your app with no script and no help. It explores the way a first-time user would and scores how intuitive the design actually is.
The AI behaves like users at their worst: wrong taps, abandoned flows, nonsense input. Every bug it forces out is recorded with the steps to reproduce it.
Describe a process in plain words, checkout, onboarding, a refund, and the AI walks it end to end on a real device. No scripts, no configuration.
The AI types, taps, and waits like a person, and brings its own synthetic test data. The app under test sees realistic usage, not a robot.

Sentinel is pre-launch. These are the conversations we're looking for.
We're always open to conversations with investors who work in deep tech. Book a meeting and we'll show you where Sentinel is.
We're interviewing practitioners in security, privacy, compliance, and mobile QA. Thirty minutes of your experience will shape what we build.
We work with a small number of teams as design partners, tuning Sentinel against their real apps before launch. Partners are first onto the beta. Slots are limited.
Confirmation code comes from Microsoft. If you don't see it, check your spam folder.
Quark-Z is building Sentinel, a platform that shows you what mobile software actually does by observing it on real devices, invisibly. Founded in Spain, working globally.