If you mean a term to describe something:

Uninterruptible

Perpetual

Unyielding

Unrelenting

If you mean a literal name like an app or service:

Centennial

Inertia

Grav

Mjolnir

Ra

Aegis

Sequoia

These are me just bullshitting and without the context I might be way off the mark, but tossing in ideas in case they help. 😁