You can check your credit balance in two places.
Top of every screen
Look at the top-right corner of any Foxy screen — your current credit balance is always shown there.
Subscription & Billing page
For a fuller view, open Profile menu → Subscription & Billing. You'll see your current balance, your plan, and your next renewal date.
Running low?
You have two ways to get more credits:
Upgrade your plan via Profile menu → Change plan — better per-credit rate
Buy a top-up pack via Profile menu → Purchase credits — one-time top-up without changing your plan