The fingerprint captures sentence length distribution, lexical choices, signoffs, response patterns, and tone shifts per recipient. It is not the email content itself but a structured representation of the writing style. Pranan generates drafts by sampling from this fingerprint plus the incoming thread context.
What's actually captured
The fingerprint isn't your email content. It's a structured representation of your writing style. We track sentence length distribution: do you write long or short sentences, and in what mix? Vocabulary frequency: which words you reach for and which you avoid. Signoffs: do you use 'best,' 'thanks,' or 'cheers' and in what proportion? Timing patterns: do you reply within an hour or wait until the next day?
The fingerprint itself is a set of patterns, not a copy of your mail. Pranan does store the email content and metadata it needs to classify and draft (see the Privacy Policy), but the voice profile on its own could not be used to reconstruct your emails.
The fingerprint also gets sharper over time. Every email you send adds another data point. By month two of use, drafts feel like muscle memory.
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See sent mail fingerprint in action. 100 drafts a month free.