Opt-In Rate

Opt-in rate is the percentage of people who actively agree to receive marketing when given the choice. On guest WiFi it is measured at the splash page: of everyone who completes the sign-in, how many also tick the (unticked) marketing consent box.

How to calculate it

Opt-in rate = marketing opt-ins ÷ completed sign-ins × 100. It is worth tracking separately from capture rate (how many connecting devices complete the splash page at all): a venue can have excellent capture and a weak opt-in, which usually points at the consent wording rather than the WiFi.

What moves the number

• The value exchange - "Get 10% off your next visit and hear about events first" out-performs a bare "Receive marketing emails".
• Plain, specific copy - guests opt in more when they know exactly what they will get and how often.
• Friction - social login plus a single checkbox beats a long form.
• Trust signals - a visible privacy link and the venue's own branding on the splash page.

Raising opt-in rate without breaking the law

Under GDPR and PECR, consent must be freely given, specific, and unambiguous: the box must be unticked by default, and the WiFi itself should not be conditional on marketing consent, because forced consent is not valid consent. The compliant playbook is to let everyone connect, make the marketing opt-in genuinely optional, and earn the tick with a clear benefit. Venues that do this well typically see a large share of guests opt in anyway - a smaller, consented list that actually opens emails is worth far more than a large list collected on shaky grounds, both for deliverability and for the audit trail.