Quick framing:

Signal is a best-in-class consumer privacy messenger.

Glacier is a secure mobility platform for organizations and high-risk principals.

The difference isn’t “who encrypts better.” It’s what problem you’re solving.

1) Identity & Anonymity Model

Signal

• Identity is tied to a personal phone number.
• Connecting requires exchanging PII.
• Phone numbers are traceable, targetable, and often reused across services.
• Creates preventable opsec risk for principals and staff.

Glacier

• Designed to operate without exposing personal phone numbers or emails.
• Managed identities can be created/administered centrally.
• Teams communicate without swapping PII.
• “No-PII-by-design” is a major advantage in high-risk environments.

2) Organizational Control & Scalability

Signal

• Great for individuals or small groups coordinating informally.