Zinkforge
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A privacy-focused Gmail add-on suite for solo professionals wanting automated follow-up tracking, scheduling, and invoice organization.
What it does
Zinkforge is an independent software studio that builds a small suite of Gmail-native AI tools: Mail2Follow tracks emails awaiting replies and suggests follow-ups, Mail2Cal turns natural-language scheduling phrases into calendar events with travel time, and Mail2Ledger extracts invoice and receipt data into a Google Sheet. The studio emphasizes that it does not read, sell, or train AI models on user email content.
Core features
Mail2Follow: tracks emails awaiting a reply and suggests follow-up timing
Mail2Cal: creates Google Calendar events from natural-language scheduling phrases, including travel time
Mail2Ledger: extracts invoice/receipt data from PDFs, spreadsheets, images, or email text into a Google Sheet
Minimal Gmail permissions with EU-based, GDPR-compliant data storage
Emails processed momentarily and discarded rather than stored or used to train models
Best for
→Making sure sent proposals, invoices, or quotes get followed up on
→Scheduling meetings directly from email threads without switching apps
→Centralizing scattered invoice data from Gmail into a spreadsheet
→Managing client relationships from Gmail without a full CRM