Inbox Tuner

Email sequences, tuned for Primary

Email sequences that land in Primary.

Describe what you sell, or pick a proven formula. Inbox Tuner writes your sequence in your voice, from your facts, and checks every email for the Promotions tab before you send it.

No sign-up, no DNS changes, no access to your inbox.

Promotions

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Primary

Mira from Pottery Lab

Your first bowl, and one question

Hi Sam, thanks for grabbing the glazing guide. Quick question: is it centering the clay that gets you, or the glaze?

Here's the class I mentioned: the glazing class.

Example. Same offer, same link; written the way you'd write to one person.

Try it now, free

Get the plan for a whole sequence and your first email written in full, or check an email you already have.

The plan for every email, plus email 1 written in full. About 30 seconds. No sign-up.

Built on real tests

We built it for our own emails first

At AlgoCademy our welcome email kept landing in Promotions. Changing single lines didn't fix it. Rewritten as a personal note that asked readers where they were stuck, with the same offer and the same link, it reached Primary in 4 of 4 test sends. Inbox Tuner is the tool we built to do that for every email, and then for whole sequences.

How it works

  1. Pick a shape. A proven formula like the Soap Opera Sequence, a 10-email welcome series or a partner promotion, or let us plan one toward your goal.
  2. We write it as you. In your voice, from what you tell us and the page you link. No invented testimonials, numbers or deadlines.
  3. We check every email for Primary. Instantly for the wording, and in the full version by sending it to real Gmail inboxes and reading the tab, then fixing what lands in Promotions without losing its point.

Formulas

Soap Opera Sequence

A story told over 5 days, each email ending on a hook for the next.

  1. Set the stage
  2. High drama
  3. Epiphany
  4. Hidden benefits
  5. Urgency and call to action

Welcome and nurture (10 emails)

Trust first, a reply, the origin story, then the reasons to buy.

  1. Welcome
  2. Quick question
  3. Origin story
  4. Problem and solution
  5. Paradigm shift
  6. Analogy story
  7. Sacred cow
  8. 80/20
  9. Objection handling
  10. Future pacing

Partner promotion (5 emails)

Emails a partner or affiliate sends to their own list about your product.

  1. Priorities hook
  2. Secret revealed
  3. Humorous reasons
  4. Contrarian credibility
  5. Last call

A sequence you admire

Paste a company's emails, or forward them to us. We keep the structure and timing and write yours in your words. Their wording is never copied.

In the full version

Pricing

One time, no subscription: you pay for what you need. Founding prices, while the full version opens.

One email

1 email ยท A welcome email, a launch email, or one you already have that lands in Promotions.

$39founding price, then $49
  • Written in your voice, or yours fixed
  • Tested in real Gmail inboxes, and fixed if it lands in Promotions
  • Up to 10 changes and 5 re-tests in 30 days
  • Ready to paste into any email tool

Short sequence

5 emails ยท A Soap Opera Sequence, or a partner promotion.

$129founding price, then $179
  • Every email written in your voice
  • Tested in real Gmail inboxes, and fixed if it lands in Promotions
  • Up to 30 changes and 10 re-tests in 30 days
  • Ready to paste into any email tool

Best value

Full sequence

10 emails ยท A 10-email welcome and nurture series, or any formula.

$199founding price, then $299
  • Every email written in your voice
  • Tested in real Gmail inboxes, and fixed if it lands in Promotions
  • Up to 50 changes and 20 re-tests in 30 days
  • Ready to paste into any email tool

30-day money-back guarantee on every package, no questions asked. The full version opens soon: reserving costs nothing, and we'll email you when yours can be made, at the founding price.

For comparison, a 5 to 7 email sequence from a copywriter typically costs $600 to $1,800, or $1,800 to $5,000 from a specialist (Stealth Agents, 2026). Want it done for you, with sales measured? Tell us about your list.

Questions

Do I need to change DNS or connect my email account?

No. The free tools and the full version work from your text alone. Later you can connect your email tool if you want tests sent from your own domain, but you never have to.

Can you guarantee my emails land in Primary?

Nobody can guarantee where Gmail puts an email in your readers' inboxes: it also depends on your sender and your readers. We test the wording in our own Gmail inboxes and show you the result. If an email still lands in Promotions there, we keep rewriting it, or refund you.

Will it invent things about my product?

No. It writes only from what you tell us and the page you link. If you don't give a testimonial, number or deadline, the emails won't have one.

Is it right for shop sales?

Sale emails belong in Promotions, and people look for them there. Inbox Tuner is for emails that really are personal: welcomes, stories, lessons, launches, check-ins.

What happens to what I paste?

It's sent to Anthropic's Claude to check or write your emails, kept for 30 days so you can come back to your preview, and never shared or sold. Anthropic doesn't use API data to train its models by default. See Privacy.

Talk to us

Questions, a done-for-you sequence, or a partnership. We read every message.