SubSentryNever Forget to Cancel a Free Trial Again
Detects subscription checkout keywords and bookmarks cancellation reminders before you get hit with unwanted recurring charges.
Client-side security • No registration required • Free tier included
Why choose SubSentry?
Built to solve real workflows without clutter, tracking, or unnecessary overhead.
Automated Detection
Scans checkout pages for recurring subscription terms and alerts you before you finalize payment.
1-Click Bookmark
Save the service, expiration date, and direct cancellation link in one click inside the extension popup.
Timely Alerts
Get notified before trials transition to full billing so you can cancel or keep the service deliberately.
Private & Local
Lightweight page keyword scanner; zero browsing history or payment details are recorded or uploaded.
Transparent & Fair Pricing
Get started immediately on the free tier with zero lock-in.
Free Tier
Always free for everyday use
- Keyword detection on SaaS checkouts ("free trial", "renews at")
- 1-Click bookmarking of service name, signup date, and manage URL
- Central dashboard to track up to 3 concurrent free trials
- Quick direct link to unsubscribe pages
Pro Tier
For power users and teams
- Unlimited tracked trials & recurring subscriptions
- Google Calendar & Apple Calendar reminder sync
- Email alerts 48h and 24h prior to trial expiration
- Bank statement match & recurring expense detector
SubSentry is powered by StoryPulse
StoryPulse is the smart platform for authors and creators. Split manuscripts, collect chapter-by-chapter reader heatmaps, and write stories readers love.