Sparks are credits for Ask. One Spark pays for one answer after your daily included allowance, or for an answer on a retained Free Account that has no included allowance.
A Spark Pack costs $12 USD internationally or ₹840 INR for eligible India purchases, for 39 Sparks as a one-time purchase. Purchased Sparks never expire and balances add together. Your first qualifying paid membership also receives 3 welcome Sparks, once per account. They are separate from daily included answers, which reset each UTC day and do not accumulate.
Open Membership → Sparks to check your balance and available purchase options. Ask also shows your current allowance or Spark cost before you send. A pack does not change your membership or remove daily capacity limits.
Connection requests, direct messages and saving a chart do not cost Sparks. Saving charts has its own account limit.
Purchase availability: New purchases are briefly paused. The pricing page shows the current catalog, not an available checkout. Existing balances and billing controls remain available; the app shows which actions you can use.