Future Cost Lens | Future Value & Opportunity Cost

Before you click Buy, see what that money could become. Future Cost Lens is an opportunity-cost reminder designed to help you make more intentional online shopping decisions. When you hover over a product price, Future Cost Lens instantly estimates: What could this money become in 5, 10, or 20 years if you did not spend it today and it grew at your chosen annual return rate? The real cost of a purchase is not always limited to the price tag. You can also enter your monthly income and working hours to estimate how many hours of work a purchase represents. This turns an abstract price into something more personal and easier to evaluate. When you decide not to buy something, select “I decided not to buy” to record the amount as money saved this month. You can then view your monthly progress and the hypothetical future value of those savings directly from the extension popup. Future Cost Lens does not tell you whether you should buy something. It simply helps you see another possibility before you check out. 【Key Features】 1. Instant future-value estimates Hover over supported online prices to see how much the same amount could potentially become over time. 2. 5-, 10-, and 20-year projections Compare the purchase price with its hypothetical compound-growth value. 3. Customizable assumptions Set your preferred asset name, annual return rate, currency, and projection periods. 4. Work-hour cost calculator Estimate how many hours you need to work to afford a purchase based on your income and schedule. 5. Record purchases you avoided Save amounts from items you decided not to buy. 6. Track monthly progress View your total saved amount for the month and its estimated value after 10 years. 7. Disable on selected websites Pause the extension on websites where you do not want it to run. 8. Local-first and account-free All calculations, settings, and records remain in your browser. 【Who Is It For?】 ・Anyone trying to reduce impulse purchases ・People working toward savings or investment goals ・Shoppers who want to understand opportunity cost ・Anyone building more intentional financial habits ・People who want to measure purchases in working hours 【Privacy】 Your shopping decisions belong to you. Future Cost Lens does not upload your browsing activity, product prices, shopping history, income settings, or savings records to any external server. All settings and records are stored locally in your browser. No account is required, and the extension does not track your shopping behavior. 【Disclaimer】 All future-value and compound-growth calculations provided by Future Cost Lens are hypothetical estimates based on assumptions selected by the user. Actual investment returns may be affected by market performance, fees, taxes, inflation, and other factors. This extension does not provide investment advice, financial advice, or recommendations to buy or sell any financial product.