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Lifetime SaaS ROI Calculator

Enter what you currently pay for a SaaS tool per month and the one-time lifetime deal price. We'll calculate your break-even point and total 5-year savings.

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How to use this calculator

  1. 1 Enter your current monthly SaaS subscription cost for the tool you're evaluating (e.g., Notion Pro at $16/month).
  2. 2 Enter the one-time lifetime deal price for the alternative (e.g., $79 on AppSumo).
  3. 3 Set your time horizon — how long you expect to use the tool. Most founders think in 3–5 year windows.
  4. 4 Click Calculate. If the break-even is under 12 months, the lifetime deal is almost always the smarter financial choice.

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