Work out subscription renewal date instantly with clear inputs, formula shown and shareable results.
Billing cycle length determines both the renewal date and the true annual cost. A four-weekly cycle bills 13.04 times a year rather than twelve, so a 12.99 charge costs 169.39 annually instead of 155.88 - an 8.7% premium that is easy to miss on a monthly-looking subscription.
Next renewal
renewal = last renewal + cycle length
Annual cost
cost = price x (365.25 / cycle days)
Because there are 13 four-week periods in a year, not 12. The headline price looks monthly but bills an extra time annually.
Usually 15-20%, but they remove the option to cancel mid-term, so the saving is really a discount for locked-in commitment.