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Detects billing emails in Gmail and alerts you 7 days before renewal charges. Monitors 62+ SaaS tools. No login required. BillSensor detects SaaS billing emails in Gmail and Outlook, and alerts you 7 days before renewal charges — so you're never surprised by an unexpected bill again. Gmail works instantly with no account connection required. Outlook connects via secure read-only OAuth. Works on Chrome, Edge, Brave, Opera, and all Chromium-based browsers. 🔍 WHAT IT DOES • Passively detects SaaS billing emails as you open them in Gmail — no setup, no login, no OAuth required • Connects to Outlook / Microsoft 365 via read-only OAuth to scan your inbox history automatically • Monitors 61+ popular SaaS tools known for dark billing patterns • Alerts you 7 days before renewal charges via Chrome notification • Shows a dark pattern score for each tool — so you know which companies make it hard to cancel, downgrade, or get a refund • Provides a direct cancel link for every detected subscription • Lets you manually add subscriptions that aren't auto-detected (up to 5 on the free plan) • Works entirely in your browser — your email content never leaves your device 🔒 PRIVACY FIRST BillSensor reads billing emails the same way you do — by looking at what's already displayed in your browser tab. There is no Gmail API connection, no OAuth token, and no Google account link involved. • No Google account connection required • Email content is never sent to our servers • All detection happens locally in your browser • We only store the subscription name, amount, and next charge date — never email body content • Strictly read-only — BillSensor cannot send, delete, or modify any emails 💰 PRICING Free — No credit card required • Unlimited passive subscription detection (detects subscriptions one by one as you view receipts) • Up to 5 manually added subscriptions • 7-day renewal alerts via Chrome notification • Dark pattern scores and cancel links Pro — $9/month • Everything in Free • Bulk Inbox Scanning (Coming Soon) — Scan your entire Gmail history instantly instead of opening emails one by one • Email renewal alerts (server-side, so you're alerted even when Gmail isn't open) • Cloud sync and multi-device support • Full billing history • Cancellation records (timestamped PDF proof that you cancelled) Team — $29/month • Everything in Pro • Up to 10 team members • Shared subscription dashboard • Priority support All paid plans include a 7-day free trial and a 14-day unconditional money-back guarantee. Cancel anytime in one click. 🎯 BUILT FOR Freelancers, solopreneurs, small businesses, and digital agencies who pay for multiple SaaS tools and want to stop being overcharged, auto-renewed, or silently upgraded without consent. ⚠️ WHY THIS MATTERS SaaS companies have turned dark billing into a revenue strategy: • Charges that continue after cancellation (Mailchimp, Zapier, and others) • Silent plan upgrades when you add a team member • Renewal emails buried in promotional folders • Cancellation flows with 8 steps and a 30-minute hold time • Annual plans auto-renewed without a reminder BillSensor monitors every billing email in your Gmail and Outlook inbox and gives you advance warning before you're charged. You stay in control. 🛠️ HOW IT WORKS Gmail (passive — no connection required): 1. Install BillSensor — works immediately, no sign-up needed 2. Open Gmail and browse your emails as normal 3. When you open a billing email, BillSensor detects it automatically 4. The subscription is added with the tool name, amount, and next charge date 5. 7 days before the next renewal, you receive a Chrome notification alert Outlook / Microsoft 365 (connected scan): 1. Open BillSensor extension → click Connect Outlook 2. Approve read-only access — BillSensor scans your last 12 months of emails 3. All billing subscriptions are detected and added automatically 4. Same 7-day renewal alerts apply 📋 SUPPORTED TOOLS INCLUDE 61 SaaS tools are currently monitored, including tools across categories such as: • Email marketing and automation • Project management and collaboration • Design and creative tools • CRM and sales • Developer tools and hosting • Video conferencing and recording • Analytics and SEO • Accounting and invoicing See the full list at billsensor.com/tools — each tool includes its dark pattern score based on verified user complaints. 🔜 COMING SOON • Connect Gmail via read-only OAuth for automatic full inbox scan (Pro — pending security assessment) • Multiple Gmail account support • Post-cancellation monitoring — get alerted if a tool charges you after you've already cancelled • Price increase detection — get alerted when a tool silently raises its price Currently supports Gmail (passive) and Outlook / Microsoft 365 (connected scan). --- Payments processed by Paddle. BillSensor is a product of Pratyasha Fashion Galaxy OPC Private Limited, registered in India.