Decipher OSLog inDecipher OS personalizes from a sheet and sends through your own Gmail - to the contacts who opted in, scheduled to each recipient's timezone, with replies and follow-ups handled for you.
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1,284
12%
41%
0.4%
Q2 partner outreach
sentInvestor update - warm list
scheduledNewsletter subscribers
draft100%
Sent from your own inbox
1-click
Unsubscribe on every email
24/7
Timezone-aware delivery
0
Third-party sending domains
Personal sending, smart scheduling, and reply tracking for the contacts who opted in - without leaving your own Gmail and Google Sheets.
Sent from your own inbox
Every message goes out through your real Gmail, so it reads as a personal note and lands in the inbox - not a promotions tab. No third-party sending domains.
Sheet-native
Your Google Sheet is the source of truth. Pick a tab and columns and go - no CSV exports or imports.
Smart drip scheduling
Send in business hours, in each recipient's own timezone, with daily caps and warm-up built in.
Reply-aware follow-ups
Track replies and bounces, run multi-step sequences, and automatically stop following up the moment a recipient responds.
There is no third-party sending service to erode your reputation. Every message is sent from your own authenticated Gmail, so it arrives in the Primary tab and threads like a message you wrote by hand.
Jane from Acme
Quick question, {{First Name}} - following up on...
No setup project. Sign in and you are running a campaign in minutes.
Connect a sheet
Sign in, point Decipher OS at any Google Sheet, and pick the tab and columns to personalize with.
Write once, personalize all
Compose your subject and body with {{placeholders}}. Add A/B variants and multi-step follow-ups when you need them.
Send from your inbox
Emails drip out through your own Gmail on schedule, in each recipient's timezone, and stop when they reply.
No. Decipher OS is for permission-based email only. You confirm that every recipient has consented before each campaign, and cold prospecting is prohibited in our Terms.
Through your own Gmail account, one message at a time. There is no shared relay or third-party sending domain, so your email comes from your real address.
Yes. Every email includes a one-click unsubscribe header and a clearly visible unsubscribe link, and opt-outs are honored immediately across all of your campaigns.
Only what each feature needs: per-file access to the sheet you select, sending from your Gmail, and reading replies and bounces to your own campaigns. See our Privacy Policy for details.
No. Sign in with Google, point it at a Google Sheet, and you can send your first campaign in minutes.
Connect a sheet, write once, and send from the inbox your recipients already trust.
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