How does the WhatsApp side actually work under the hood?

Snaptide integrates with the official WhatsApp Cloud API — the business-grade channel, not some unofficial automation that risks getting numbers banned. When you publish an album, it messages the guests who registered with their phone numbers. The important detail for photographers is cost: every WhatsApp message costs Snaptide about ₹0.85 to deliver, which is why the whole thing runs on a credits system rather than being unlimited.