Anyone with an Android smartphone or tablet version 4.0 or higher can download the Instabridge app for free from Google Play Store, and anyone with an iPhone or iPad iOS9 or newer can download the Instabridge app for free from App Store.
When a WiFi has been shared publicly on the Instabridge platform, anyone with the app who is within reach of that WiFi is able to connect to it.
Anyone is welcome to join the Instabridge community and share, test and update public WiFis on the platform. Being part of the community is free and by being an active member of the community you start collecting points within the app.