A Gmail extension for creators

Know which sponsorship emails are real.

Sir inspects every brand pitch before you reply: is the sender really the brand, is that “brief” malware, and what do the terms actually say? All of it on your computer — your inbox never leaves your browser.

Join the waitlist Check a pitch now, free

Free for protection · Pro is $7/month or $59/year · 7-day trial, no card

The Sponsir mark: a gold monocle, mustache and bow tie

01 — The problem

The fake sponsorship email is now the #1 way creator channels get stolen.

A “brand” emails you. The rate is great. The brief is a password-protected ZIP, or the contract needs you to “sign in with Google” to view it. One click later an infostealer has your session cookies and your channel is streaming crypto scams.

It hits creators with 5k subscribers and 5M alike, and Gmail’s spam filter waves most of it through because the domain is brand new. Sponsir reads the message you already have open, on your computer, and tells you in one sentence what it is.

02 — What Sir does

Install once. Every pitch is inspected as you read it.

i.

Verifies the sender is the brand.

Domains are matched against the brands named in the email. Lookalikes, punycode, free-mail “brand managers” and mismatched Reply-To addresses are called out on the thread.

ii.

Reads the terms so you don’t have to.

Rate, deliverables, deadline, exclusivity, usage rights and payment terms pulled into a deal sheet, with what’s missing and what to push back on. Ten a month free, unlimited on Pro.

iii.

Keeps every deal on one desk. Pro

Save a pitch to the tracker from the message. Move it from negotiating to paid, get nudged before deliverables are due and when an invoice passes Net 30. Export to CSV any time.

03 — Pricing

Protection is free.
Pay only for the desk.

Free

$0

Forever. No account needed.

  • Sponsor verification on every thread
  • Malware & phishing lure warnings
  • 10 deal-term extractions a month
  • Free web Pitch Checker
Join the waitlist

Pro Most popular

$59/year

Works out to $4.92/month, billed once a year

  • Everything in Free
  • Unlimited deal-term extraction
  • Deal tracker & CSV export
  • Deliverable & payment reminders
  • Up to 3 devices
Join the waitlist

7-day free trial from the extension, no card. Cancel any time · 14-day money-back guarantee.

Prices in USD. Taxes handled at checkout.

04 — Questions

Things creators ask us.

Does Sponsir read my email?

Only on your screen. It runs as a browser extension on the Gmail tab you already have open and analyses the message you are looking at, locally. There is no server, no Gmail API access and no OAuth “read all your mail” permission to grant. Nothing is uploaded.

How is this different from Gmail’s own spam filter?

Gmail catches known bad senders. Sponsorship scams use freshly registered lookalike domains and clean-looking archives, so most land in the inbox. Sponsir understands the context — that an email claiming to be NordVPN isn’t from a NordVPN domain, or that a “brief” shouldn’t be a password-protected ZIP.

Will it work with a Google Workspace address?

Yes. Workspace uses the same Gmail interface, so Sponsir works on you@yourbrand.com exactly as on @gmail.com.

What about Instagram or TikTok DMs?

Not at launch. Paste any DM into the free Pitch Checker and you get the same analysis. In-app DM support is on the roadmap.

Can a real brand be flagged by mistake?

Yes — that’s why the badge says Unverified rather than Scam unless the signals are unambiguous (lookalike domain plus a malware-style attachment, for example). You can mark a sender as trusted; that choice stays on your device.

Which browsers?

Chrome and Edge at launch (any Chromium browser that can install from the Chrome Web Store). Firefox is planned.

Who makes this?

House of Arqam Ventures LLC — the team behind Manila Mail Manager, a local-first Gmail extension used to find and cancel subscriptions. Sponsir is built on the same privacy-first engine.

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