YouTubers pay monthly for screen recording, captions, clipping and scheduling before the channel earns a cent. One-time tools fix the cost of production at the price of a single video's ad revenue.
The tool this job usually means renting is Iconscout, at $9.99/mo (Unlimited) — roughly $120 a year, every year. Iconforge does the job for a one-time $15 — running locally on your own machine.