What Drives the Price
A few factors explain most of the price spread you'll see across numerology products and services:
Format
A single free calculator result, an automated multi-number report you download as a PDF, and a live one-on-one consultation with a practitioner are three very different products. Live time from a real person naturally costs the most, since it isn't reusable the way an automated report is.
Depth and cross-referencing
Calculating one number in isolation is quick and cheap to produce. Cross-referencing several numbers together — Ruling, Destiny, Name, Karmic Debt, Lo Shu Grid — and explaining how they interact takes more content to build and typically costs more than a single-number lookup.
Brand and market positioning
As with most services, price also reflects positioning — a well-known name or a premium presentation can command a higher price for broadly similar underlying calculations, since the maths itself follows the same established systems regardless of who's presenting it.