Research-driven engineering, grounded in real products.

Resku detects possible vehicle collisions using the accelerometer, gyroscope and GPS of an ordinary phone. A single strong reading is never enough. The decision draws on several independent signals: the shape of the impact, rotation, the change in speed, and what the phone and the vehicle do afterwards. It waits for the vehicle to come to rest before it alerts anyone.

Most of the difficulty is in the look-alikes: potholes and speed breakers, a phone dropped or tossed onto a bed, someone sitting down hard. A person on foot struck by a vehicle produces a very different signature from a collision inside a car, so it is detected separately.

Coverage drops out on highways and in the hills, and phones close background apps to save battery. Resku is engineered for both. An alert that cannot be sent waits on the phone and goes out the moment there is signal. Sensors run at full rate only when there is an event to check, and location tracking is built to survive the power-saving behaviour of Android and iOS.

We also map where signal is lost. Phones that take part contribute anonymous coverage readings on a coarse grid, and a statistical model separates genuine no-signal stretches from momentary drops, so the app can warn people before they reach one. The model was first trained on simulated journeys that run the app’s own capture code, and is built to be refitted on real readings.

Detection improves with real data, but crash data is sensitive. With consent, Resku keeps an anonymous summary of each impact it judges: the physics of the event and whether it turned out to be real, without the time, the device or the person.

Summaries leave the phone only after a delay, and the server’s raw event logs are purged on a schedule, so a summary cannot easily be joined back to an individual. This is the data we intend to train future detection models on.

Resku Business is an operations platform for passenger transport operators. At its core, every change, whether a person makes it or software does, passes through typed, validated commands and is recorded. Permissions are enforced in the database as well as in the application.

Rules that differ between countries, such as language, tax and messaging, live in separate packs on a neutral core, so the same system can serve operators in different places. We are designing AI assistance for the platform to work inside explicit limits on what it may do, with people deciding how much it is trusted.

A safety alert is only useful if the person receiving it understands it at once. Resku is available in seven languages, and each notification reaches its recipient in their own language, whatever language the sender uses.

We also prefer plain descriptions to numbers people cannot interpret, and say nothing at all when the evidence is too thin.