Public simulators
Calculate what Warren could help you save.
Try a quick estimate before creating an account. Each simulator shows the opportunity; Warren turns it into a real action plan once you register.
Tax optimisation
Pillar 3a tax savings simulator
Estimate how much Swiss income tax you could save by contributing to Pillar 3a this year.
Calculate now →Daily banking
Banking fees simulator
Compare your current account costs with a lean Swiss banking setup based on how you actually use your account.
Calculate now →Mobile plan
Phone subscription simulator
Find the kind of Swiss mobile subscription that fits your data, roaming, and network needs.
Calculate now →Home connectivity
Internet subscription simulator
Estimate whether your home internet package is oversized, underpowered, or priced about right.
Calculate now →Housing costs
Rent reduction simulator
Estimate whether a Swiss reference-rate change could justify asking your landlord for a lower rent.
Calculate now →Home purchase
Mortgage affordability simulator
Estimate a sustainable purchase price from income, equity, interest rates, and Swiss affordability rules.
Calculate now →