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Use cases · For online stores and DTC brands

A thank-you note in every order

When the parcel lands, a letter from you tears open on their phone, by email or from a QR code tucked in the box. Their name, the thing they bought, a photo and a voice note from the founder.

No app for your customers. No card details to start.

What your customers see

Real screens from the product, not mock-ups.

It arrives as an envelope with your name on it, and tears open on their phone.
It arrives as an envelope with your name on it, and tears open on their phone.
Inside, a letter in the handwriting you picked, written to them by name.
Inside, a letter in the handwriting you picked, written to them by name.
A photo of the product they bought, right in the letter.
A photo of the product they bought, right in the letter.
A voice note from you plays from the letter. No app, no account.
A voice note from you plays from the letter. No app, no account.

Your best moment with a customer gets a shipping notification.

They are holding something they chose from you. Today that moment gets an automated "your order shipped", then a review request, then a discount code. A short letter from you, with their name and what they bought, is what they remember and tell a friend about.

Where a letter fits

In the parcelA QR card that opens a thank-you letter as they unbox.
After a first orderA welcome letter from the founder, a few days after delivery.
Repeat customersA note on their third order, or a year after their first.
BirthdaysScheduled a year ahead and delivered at 6 am their time.
Before the holidaysYour best customers, before the rush.
After a reviewA personal thank-you to the customer who wrote about you.

How it works

1

Upload your list

Names, emails, dates and one personal line each, straight from your store export or a spreadsheet.

2

Write it once, make it theirs

Pick the handwriting, envelope and music. Each person's name and line go in on their own.

3

It goes out on the right day

Thank-yous when the parcel lands, birthdays a year ahead, all at 6 am in each person's time zone.

Your customer list in, one personal letter per row out, each on its own date.
Your customer list in, one personal letter per row out, each on its own date.
Or print each letter as a QR code to hand over in person.
Or print each letter as a QR code to hand over in person.
Pick the animation that plays as it opens.
Pick the animation that plays as it opens.
And the envelope they see first.
And the envelope they see first.

Free templates you can copy

Use them as they are, change a line, or paste one into a letter and send it today.

Thank-you note for a first order

Thank you for your order! We packed it by hand in our studio this week, and we hope it arrived looking as good as it felt to send. If anything is not quite right, just reply to this letter and a real person will help.

Note to tuck in the parcel

Hello and thank you! You are holding something we made with a lot of care. We hope you love it. Share a photo with us if you do, and tell us if there is anything we could make better.

Thank-you for a repeat order

Your third order! Thank you for coming back. Customers like you are why we keep doing this. We slipped a little extra in the box to say thanks, and we hope it makes you smile.

Birthday note to a customer

Happy birthday! From all of us at the studio, we hope your day is full of the things you love. Thank you for being part of our story this year.

Thank-you for a review

Thank you for taking the time to review your order. We read every word, and yours made the whole team smile. It genuinely helps a small brand like ours.

Holiday note to customers

Happy holidays! Thank you for choosing us this year. Every order you placed kept a small studio busy and happy. We wish you a restful season and a wonderful new year.

Printed cards versus letters

A printed card, an envelope and a $0.82 first-class stamp add up fast. Move the slider.

Printed card estimated at $1.20 plus a $0.82 stamp (USPS, July 2026). Business is $39 a month for up to 500 letters.

Printed and mailed$0a year
GreetSpark Business$0a year

Pick how you run it

Business
$39 a month

For a store sending up to a few hundred letters a month from a spreadsheet.

  • 500 letters a month, and 500 more for $50 when a month needs it
  • Sent from your own email address
  • Your name on the letter, its page and the email, with ours nowhere on them
  • A spreadsheet in, a personal letter per row out, each on its own date
  • You and 2 colleagues on one account
  • Cancel any time
See the Business plan
Your own platform
Private Deploy
$299 30-day pilot

For a brand that wants letters on its own address, sent automatically when a Shopify order ships.

  • 100 letters to prove it with real people
  • Your own web address, logo and colors on every letter and page
  • Sent through your mail server, with your data on your system
  • Triggered by the tools you already run, from Zapier to a webhook
  • From $349 a month after the pilot
Ask about a pilot

Just trying it? Every account starts with 3 free letters a month. Make one now.

Open a real one. A sample letter, made exactly the way yours would be. Open it on your phone to feel the envelope tear. Open the sample letter →

Questions people ask

Is it really handwritten?

No, and we never say it is. Each letter is set in one of 60 handwriting fonts you choose, on letter paper inside an envelope that tears open on screen. It reads like a handwritten note and arrives in seconds.

Can it go out automatically with every order?

On Business you upload orders as a spreadsheet and each letter goes out on its own date. Private Deploy connects to Shopify Flow, Klaviyo, Zapier or a webhook, so a letter goes out when an order ships, on your own address.

Can I put it in the box?

Yes. Print each customer's letter as a QR code for the packing slip. It opens on their phone as they unbox.

Do they need an app or an account?

No. The letter arrives as a link by email and opens in any phone or computer browser. You can see when each one is opened.

Can I add a product photo and a voice note?

Yes. Add a photo, a voice note of up to 60 seconds and music. On the Business plan letters carry your brand name and no GreetSpark branding.

What does it cost?

You can try three letters a month for free. Business is $39 a month for 500 letters, with 500 more for $50 when a month needs it. Brands that want it on their own platform use Private Deploy.

Send your first one today

Three letters a month are free. No app for anyone, nothing to install.

Create a letter