The primary difference between the two is "all-inclusive" versus "pay-as-you-go." The Swiss Travel Pass is an all-in-one ticket that offers unlimited travel on trains, buses, and boats throughout Switzerland for a set number of days (3, 4, 6, 8, or 15). It also includes free entry to over 500 museums and covers many mountain excursions (like Mt. Rigi) entirely. It is the best choice for travelers who want maximum convenience and plan to travel long distances daily. The Swiss Half Fare Card costs a flat fee (around 120 CHF) and is valid for one month; it does not give you free travel, but instead allows you to purchase any ticket—including those for mountain peaks like the Jungfraujoch—at a 50% discount. The Half Fare Card is usually more economical if you are staying in one region for several days or doing a "slower" trip with less frequent train travel. In short: the Swiss Travel Pass is for convenience and intensive travel, while the Half Fare Card is often the budget-friendly choice for those willing to buy individual tickets for each journey.