Email Reset Links Beat SMS OTP for Most SaaS Password Recovery Flows
For most SaaS platforms, an emailed single-use reset link is the recommended default for password recovery, as it keeps the login identifier, recovery channel, and support workflow in one place. SMS OTP may seem faster but introduces added complexity around phone-number verification, regional compliance, number reassignment, and delivery reliability. Developers are advised to model completed recoveries rather than raw message sends when comparing costs across the two methods. SMS should only be added when users genuinely lack email access or when the product already maintains continuously verified phone numbers — not simply because entering a short code feels smoother in a demo. Neither channel is a universal fallback, and the core goal remains safely returning the right person to their account without creating openings for account takeover.
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