BillSensor

BillSensor is a Chrome extension that helps you take control of your SaaS subscriptions by detecting billing emails and alerting you before any charge hits your account. With support for over 61 popular SaaS tools, BillSensor acts as your billing command center, ensuring you never get blindsided by unexpected renewal charges again.

How It Works

The setup is simple and privacy-focused. Install the Chrome extension with one click, and BillSensor begins monitoring your billing emails automatically. For Gmail users, the extension reads billing emails passively as you browse, with no account connection or OAuth required. Outlook and Microsoft 365 users connect once via the extension popup to enable a full billing history scan, surfacing subscriptions you may have forgotten about entirely.

Key Features

• 7-Day Renewal Alerts: Receive browser notifications and email alerts a week before any SaaS renewal, giving you time to cancel before being charged.

• Post-Cancellation Monitoring: Mark subscriptions as cancelled and get warned if a billing email arrives after cancellation, protecting you from continued charges.

• Price Increase Detection: Get alerted when a tool charges more than usual, with any significant spike automatically flagged as suspicious.

• Dark Pattern Detection: Each SaaS tool is scored based on their billing practices, with high-risk tools flagged and direct cancel links provided.

• Cancellation Records: Generate timestamped proof of cancellation as HTML or PDF to dispute unauthorized charges with evidence.

• Billing History: Track your complete SaaS spend history, with every detected subscription and charge logged for easy reference.

• Privacy First: No Gmail connection required for passive detection. Email content is read locally and never leaves your device. No data is ever sold.

Who It's For

BillSensor is perfect for freelancers, small business owners, marketing teams, and anyone who subscribes to multiple SaaS tools. If you've ever been charged for a subscription you forgot to cancel, or discovered charges months after cancelling, BillSensor gives you the visibility and control you need.

Why BillSensor Stands Out

Unlike other subscription trackers that require OAuth access to your inbox, BillSensor's passive Gmail detection means you never have to grant permission to read your emails. The dark pattern scoring system helps you identify which SaaS companies use aggressive billing tactics, while the comprehensive dashboard gives you complete visibility into your subscription landscape. With automatic detection, proactive alerts, and evidence-based cancellation records, BillSensor is the most complete solution for managing your SaaS spending.