3B App vs CarCostTracker

3B is a contactless smart-school solution for student payments, attendance, and monitoring. Using NFC bracelets, AI-powered attendance, and integrated digital platforms, 3B connects students, parents, teachers, and schools in one ecosystem, enabling secure payments, real-time attendance tracking, student monitoring, communication, and greater visibility for parents.

Know what your car really costs. CarCostTracker keeps fill-ups, maintenance, repairs, insurance, registration, parking and other vehicle expenses in one clear place. Add odometer readings, locations, notes and receipt photos. Dashboards and detailed analytics reveal totals, trends, cost per mile, fuel economy and useful monthly reserves. The app is offline-first: your data stays locally on your device, and no account is required. JSON import and export keep you in control of your backup. Free includes one vehicle, unlimited entries and essential analytics. A single CarCostTracker Plus purchase unlocks multiple vehicles, advanced analytics, planning tools and local receipt recognition—no subscription.