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Nothing. WhySoSlow is a personal project — free, with no subscriptions and no in-app purchases. One burakov account works across all your devices.
iOS and Android, phones and tablets, from one account. It’s mobile-only — there’s no desktop or web version, because it’s built to be mounted in a car.
No. WhySoSlow is a follow-map, not a navigator — no destinations, no turn-by-turn. It shows the limit in force and warns about cameras, and otherwise stays out of your way.
Kyiv and the surrounding oblast today, with other regions as downloadable map packs. Once a region is downloaded, everything works fully offline.
So your personal edits (fixed limits and markers) sync across your devices, and so the optional AI advisor can work. The account is free.
WhySoSlow assumes the phone is mounted and charging with the screen on, so it’s tuned for heat, not battery — GPS runs about once a second and the optional camera capture is throttled. It doesn’t run in the background.
Only if you switch the AI sign advisor on. With it off, the camera is never used. Even on, it captures small frames for sign-reading, uploads them, and deletes them from your device after upload.
Limits come from OpenStreetMap plus Ukraine’s implicit defaults; cameras come from the official data.gov.ua dataset enriched with OpenStreetMap. Nothing is perfect — which is why you can fix any limit and add any camera yourself, and your edits always win.
Kilometres per hour, always — it’s built for Ukraine.