Gmail and Outlook work differently under the hood, so what's included at each plan differs slightly between them. Pick your inbox below for the exact breakdown.
Gmail detection is passive and needs no OAuth connection, it reads billing emails as you open them, directly in your browser.
| Feature | Free | Pro | Business |
|---|---|---|---|
| Passive detectionDetects billing emails as you open them, no OAuth | Unlimited | Unlimited | Unlimited |
| Manual addAdd a subscription BillSensor hasn't detected yet | Up to 5 | Unlimited | Unlimited |
| Multiple Gmail accountsWorks across u/0, u/1, u/2 tabs simultaneously | Supported | Supported | Supported |
| Feature | Free | Pro | Business |
|---|---|---|---|
| Chrome renewal notification7-day warning, no login required | Unlimited | Unlimited | Unlimited |
| 3-day final notification | — | Unlimited | Unlimited |
| Email renewal alertsRequires free registration | 5 lowest-cost | Unlimited | Unlimited |
| Cancel link included in alert email | 3 lowest-cost | All subscriptions | All subscriptions |
Example: Adobe scores 9/10 largely because of its early termination fee, one of the specific patterns this score exists to flag before you sign up.
| Feature | Free | Pro | Business |
|---|---|---|---|
| Dark pattern score1-10 rating based on verified complaint data | 3 lowest-cost | Full detail, all tools | Full detail, all tools |
| Direct cancel linkIn-extension | 3 lowest-cost | All subscriptions | All subscriptions |
| Price increase detection | — | Toast + email | Toast + email |
| Anomaly detectionFlags charges 20%+ above last known amount | — | Included | Included |
| Post-cancellation monitoringTwo-stage: pre-charge check + immediate alert | — | Included | Included |
Example: if Adobe charges you after a confirmed cancellation, this timestamped record is exactly what you'd attach to a bank dispute.
| Feature | Free | Pro | Business |
|---|---|---|---|
| Cancellation recordsDownloadable, timestamped proof | — | Included | Included |
| Billing history | — | Full history | Full history |
| Personal dashboardSpend summary, renewals, CSV upload | — | Included | Included |
| Cloud sync | — | Included | Included |
| Feature | Details |
|---|---|
| Admin dashboard | Aggregated spend, renewals, and per-member subscription detail |
| Seats | Up to 10, admin included, invite by email |
| Member removal | Removed member reverts to Free tier rules |
Outlook and Microsoft 365 connect through a one-time, read-only Microsoft Graph API scope. Alerts arrive by email only, since there's no passive browser trigger the way Gmail has for Chrome notifications.
| Feature | Free | Pro | Business |
|---|---|---|---|
| Full inbox scanOne-time scan of the last 12 months on connect | Included | Included | Included |
| Re-scan | Manual, "Scan Now" | Automatic, daily | Automatic, daily |
| Feature | Free | Pro | Business |
|---|---|---|---|
| Chrome notification | Not available, no passive trigger for Outlook on any plan | ||
| Email renewal alertsRequires free registration | 5 lowest-cost, unlimited alerts on those 5 | Unlimited, no ranking | Unlimited, no ranking |
| Cancel link in alert email | 3 lowest-cost | All subscriptions | All subscriptions |
| Cancelled slot backfillNext-lowest locked subscription is promoted automatically | Included | N/A, unlimited | N/A, unlimited |
Example: Adobe scores 9/10 largely because of its early termination fee, one of the specific patterns this score exists to flag before you sign up.
| Feature | Free | Pro | Business |
|---|---|---|---|
| Dark pattern score | 3 lowest-cost | Full detail, all tools | Full detail, all tools |
| Direct cancel linkIn-extension | 3 lowest-cost | All subscriptions | All subscriptions |
| Price increase / anomaly detection | — | Included | Included |
| Post-cancellation monitoring | — | Included | Included |
Example: if Adobe charges you after a confirmed cancellation, this timestamped record is exactly what you'd attach to a bank dispute.
| Feature | Free | Pro | Business |
|---|---|---|---|
| Cancellation records | — | Included | Included |
| Billing history | — | Full history | Full history |
| Personal dashboard | — | Included | Included |
| Cloud sync | — | Included | Included |
| Feature | Details |
|---|---|
| Admin dashboard | Aggregated spend, renewals, and per-member detail, with a source tag showing Gmail or Outlook |
| Mixed-provider teams | One admin can oversee members on Gmail and Outlook at the same time |
Free tier requires no payment method, ever.
On Pro and Business, cancel anytime during the trial.
Unconditional, on all paid plans.
Across email marketing, design, CRM, developer tools, and more.
Chrome, Edge, Brave, Opera, and other Chromium-based browsers.
USD, EUR, GBP, INR, and other major currencies, with the correct symbol.
Every feature on this page works the moment you install, no setup call, no configuration.
Add BillSensor to Chrome, free →Free detects unlimited subscriptions but only fully unlocks alerts, scores, and cancel links for your 3-5 lowest-cost ones. Pro removes that cap entirely and adds price increase detection, post-cancellation monitoring, and cancellation records. Business adds up to 10 seats and an admin dashboard on top of everything in Pro.
Mostly, with two differences. Outlook alerts arrive by email only, since there's no Chrome notification trigger for it. And Outlook Free automatically promotes your next-cheapest subscription into an alert slot if one gets cancelled, a mechanic Gmail Free doesn't need since its ranking works slightly differently.
Yes, for your 3 lowest-cost subscriptions. Pro and Business unlock full detail for every subscription, not just those three.
Post-cancellation monitoring. It's the feature most competitors don't offer at all, an alert if a tool charges you after you've already cancelled it.
Seats for up to 10 people and the admin dashboard, which shows every member's subscriptions, spend, and next renewal in one place, with a source tag showing whether each was detected via Gmail or Outlook.