Request signature via SMS or WhatsApp

WhatsApp and SMS delivery are available on our paid plans. Availability may vary by region and messaging provider. You can view the exact options included in your plan directly inside the Sign.Plus dashboard.

No. Recipients can open the secure link and sign from any device—no account, app, or login required.

Both WhatsApp and SMS delivery are supported in most countries worldwide, though availability may differ based on local carrier rules or regional messaging restrictions. If either channel is unavailable, Sign.Plus lets you switch to an alternative instantly.

Absolutely. You can choose a different delivery channel for each recipient and resend through another method if someone hasn’t responded. WhatsApp, SMS, and email work together to increase completion rates and reduce turnaround time.

Yes. Recipients receive a secure, unique link that opens their document in Sign.Plus—not within the messaging app itself. All documents are encrypted, fully auditable, and protected by industry-standard compliance, including legally binding eSignatures.

Upload your document in Sign.Plus, add your recipients, and choose WhatsApp or SMS as the delivery method. Your signer will receive a secure link they can open and sign instantly from any device—no account or app required.