GhostSubsEvery subscription leaves a paper trail in your inbox: order confirmations, receipts, renewal notices, price-increase announcements. Gmail's search operators can dig most of it out in ten minutes.
Below are the searches that work, roughly in order of usefulness — and the gaps that make manual search miss things.
Gmail searches that surface subscriptions
- Start with the purchases category. Search category:purchases — Gmail's machine learning already labels most receipts, and this one query surfaces the bulk of them.
- Search receipt language. Try: subject:(receipt OR invoice OR renewal), then "payment received" OR "payment confirmation", then "auto-renew" OR "next billing date". Each phrasing catches different senders.
- Search known billers. from:stripe.com, from:paddle.com, from:paypal.com — payment processors send receipts for thousands of services, and their emails all follow findable patterns.
- Add a date window. Append newer_than:1y to any search to focus on subscriptions that are plausibly still active.
- Record what you find. For each hit: service, amount, cycle (monthly/annual), and last charge date. Anything without a recent charge deserves a statement check before you assume it's dead.
Where manual search falls short
Manual search has three gaps: services that email receipts only as PDF attachments, renewals that don't email at all (common with UPI autopay and some app-store renewals), and the sheer tedium of checking dozens of results against each other.
GhostSubs automates exactly this: it runs wide receipt searches over your Gmail with read-only access, uses AI to identify genuine subscriptions among the matches, and only claims a subscription is active when real charge evidence backs it — with links to the exact source emails so you can verify.
Frequently asked questions
Is it safe to let an app read my Gmail?
With Google's read-only scope (gmail.readonly), an app can read but never send, delete, or modify mail, and you can revoke access at any time from your Google Account permissions page. Check what the app stores — extracted details only is the standard to look for.
Which Gmail search finds the most receipts?
category:purchases — Gmail's own receipt classifier — usually finds the most in one shot. Keyword searches fill in what it misses.
Can I find cancelled subscriptions this way too?
Yes — search "cancelled" OR "cancellation confirmed" OR "subscription ended". Pairing cancellations against receipts tells you what's actually still active.