We currently use two apps across Switzerland:
Depending on the network and region, you either use the PubliBike App or the PubliBike Velospot App
Here you use the PubliBike App
For the regions of Bern, Zurich, Lausanne-Morges, région de Nyon, and Sottoceneri.
Here you use the PubliBike Velospot App
For the regions of Aarau, Aigle, Andermatt, Basel, Biel, Fribourg, La Chaux-de-Fonds, Locarnese-Bellinzonese, Martigny, Monteceneri, Riviera, St. Petersinsel, PSI-Villigen, and the Agglo valais central.