For (1 keyword, 1 location) x 1 search = 1 search, one search credit will be consumed. Eg: For 2 keywords and 3 locations will consume 6 search credits.
Yes you can export advertisers data and related search team data.
No we do not provide free plan. You can try out 7 day free trial which provides 300 search credits.
No unused credits will be carry forwarded every month.
You can try out 7-day trial which provides 300 search credits. All subscriptions are non-refundable. PPC Ad Insights does not offer prorated refunds for mid-subscription cancellations or downgrades.