PromptSign
Sigstore signing and verification for AI skills and instruction files
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Paying nine dollars once instead of a monthly seat fee is the unusual part, and one shared link lets each colleague drop their own details into the same design.
esigna builds HTML email signatures in the browser for Gmail, Outlook, Apple Mail and others, from around thirty templates you can switch between without retyping your details. Pasting a signature out of a sent message fills the fields for you, free on first use with an account. Paid tiers are one-time rather than subscriptions: nine dollars adds image-based Masthead, Seal and Portrait designs, holiday variants, shared team links and twenty-five saved signatures; twenty-nine dollars adds business cards, social covers and letterhead. Nobody behind it is named.
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