Inbox Spy
Competitor email monitoring
Monitor competitor email campaigns without connecting your inbox.
Inbox Spy gives every tracked company a user-controlled tracking address, then files public newsletters, onboarding emails, launches, and promos into a private searchable archive.
Competitor email monitoring using user-controlled tracking addresses. No personal inbox connection.
Latest captures
Search emails
128captured
18companies
7unread
60-second walkthrough
From signup form to searchable proof.
The product flow is simple: create a workspace, add a competitor, copy its tracking address, use that address in a public subscription or trial signup, then review captured emails in the company archive.
- Create a companyAdd the brand or product you want to monitor.
- Copy the tracking addressEach company gets its own address under the Inbox Spy capture domain.
- Subscribe through public formsUse the address for newsletters, trials, webinars, product updates, or promo lists.
- Search and share evidenceReview the captured messages and create visual PDF proof when you need it.
Built for repeatable competitor research.
Add a competitor
Create a company record for the brand you want to study.
Copy its address
Use the generated tracking address for public email flows.
Collect campaigns
Incoming emails are filed into the right archive automatically.
Use the evidence
Search, compare, and share selected examples as PDF proof.
Customer examples
Useful before launch reviews, audits, and planning calls.
Lifecycle marketers
Compare welcome, trial, activation, and winback sequences without forwarding emails around the team.
Product marketers
Track how competitors introduce features, explain pricing, handle objections, and position launches.
Agencies
Keep research for each client separate and share exact campaign examples with clean PDF links.
Exact plan limits
Start free. Upgrade only when your archive grows.
- 3 tracked companies
- 100 tracked emails
- Private email archive
- No public PDF sharing
- 50 tracked companies
- Unlimited tracked emails
- Private email archive
- Public PDF sharing included
- 250 tracked companies
- Unlimited tracked emails
- Private email archive
- Public PDF sharing included
Plain-language compliance
Clear collection boundaries for paid traffic.
Inbox Spy is for public subscriptions and email flows you are authorized to receive. You control the tracking addresses you use. The core workflow does not ask for personal-inbox access, does not bypass access controls, and does not read third-party inboxes.
Use public signup forms and opt-in email flows.
Keep one tracking address per company or signup path.
Share only the selected PDF evidence you choose.
Answers before you create a workspace.
How long does setup take?
Most teams can create a workspace, add a company, copy its tracking address, and subscribe to a public email flow in a few minutes.
Which emails are supported?
Inbox Spy is built for emails sent to tracking addresses you control: newsletters, product updates, free trials, webinar follow-up, onboarding flows, and promotional campaigns.
Does Inbox Spy access my personal inbox?
No. The main workflow uses generated tracking addresses. You do not need to connect a personal inbox to collect competitor emails.
Is the archive private?
Yes. Companies, folders, captured emails, and read state stay inside your workspace. Public PDF links are created only when you choose to share a selected email on a paid plan.
Can I cancel?
Yes. You can downgrade to Basic in the app or contact support. Refund details are available in the refund policy.
What happens after the free limit?
Basic includes 3 companies and 100 tracked emails. Upgrade to Plus or Pro when you need more companies, unlimited tracked emails, or public PDF sharing.
Ready for the first archive?
Create free workspace
Create a free workspace and monitor your first competitor email flow.
Start with one company, one tracking address, and one public subscription.