Vendors often raise prices at renewal, sometimes with language like “then-current list price” or “CPI plus 5%.” A $200/mo tool renews at $216, then $233, and over a few years you can pay far more than you agreed to, without ever explicitly saying yes.
QuietBill records the amount of every charge for each subscription. When a new charge is more than 2% higher than the previous one, it flags a price uplift and, on Team and Business, emails you a side-by-side comparison (“Notion increased from $80 to $96, a 20% uplift”).
Every plan records the price history; the uplift alert email is the Team and Business part.
On the subscription’s detail page, the full price history is shown with the percentage change per charge and any uplifts highlighted. When a renewal-reminder email arrives stating a new price, that gives you a chance to negotiate or cancel before the higher charge hits.