Per-video
Unlock $3.99 = 1 credit. Unlock HD $5.99 = 2 credits. Bound Unlock on a template page unlocks that one video; packs put credits in your wallet for any template.
Packs
4 credits $9.99 (~$2.50/credit) · 10 credits $22.99 (~$2.30) · 20 credits $39.99 (~$2.00). Best value is the 20-pack if you remake often.
Payment
Checkout is PayPal (wallet, guest card, and Apple Pay / Venmo when PayPal marks them eligible on your device). Some regions or mainland CN↔CN PayPal may decline.