WatrApp — Wędrownicza Watra gathering guide

Wędrownicza Watra is the national gathering of ZHP rovers: at the end of August, patrols aged 15–21 meet for a few days at a forest campsite, in 2023 in Kashubia. The programme was scattered across paper leaflets and Facebook posts, participants kept asking at the office about times and places, and in the field it was hard to find the medical tent or the right workshop spot. On top of that, the campsite had almost no signal, so the information had to be on the phone before anyone needed it. We designed and built WatrApp: an app installed straight from the browser, with no app stores, holding the gathering schedule, the evening programme, descriptions of the optional tents, the staff list, an FAQ and emergency numbers dialled with one tap. The map shows the participant's position, workshop spots, sleeping areas and service points on satellite imagery stored inside the app, so it also works offline. We also prepared an installation guide with short videos for Chrome, Firefox, Edge, Opera and iPhone, so every participant could add the app to their phone on their own. We kept the content up to date until the day of the gathering. Result: about 65% of 500 participants had the programme and map in their pocket, fewer people ended up in the wrong place, and they reached their workshops faster.