OTP vs Social Login in Captive Portals

Both reduce friction compared to long forms—but they fit different goals.

OTP Login

• Pros: simple, trusted, verified phone; good conversion.
• Cons: SMS cost; phone-number handling obligations.

Social Login

• Pros: richer profile attributes; fewer typos.
• Cons: consent complexity; platform policy changes.

What to Choose?

• Run an A/B test by venue type; optimize for completion and support load.
• Offer a fallback (voucher/help desk) for users without phone or social accounts.