Letterby SMS Integration

Yes — Mobile Message integrates with Letterby. Send and receive SMS from the tools you already use.

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✓ 50 FREE SMS credits included when you sign up

Letterby logo
Mobile Message

About the Letterby integration

Letterby powers growth through waitlists and gamification, but the moment a new subscriber joins is your best chance to engage them, and you only get that moment once. Every second that passes without a reply is a second they could be cooling off or looking elsewhere.

When a new subscriber joins your Letterby list, a Zap can send them an instant SMS welcoming them in, setting expectations, or asking them to complete a step. You can reward them, add them to follow-up sequences, or create a record in Mobile Message. When a new reward is unlocked, send a celebration message so they feel the win immediately and stay invested in your game.

This means your subscribers get a sense of momentum from day one. Fresh signups become engaged followers, rewards feel meaningful because they arrive instantly, and your list stays active because every milestone triggers a real moment of connection.
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A Zapier account and subscription is required for this integration. Please view Zapier's pricing page for further information.

What you can automate

Connect Letterby and Mobile Message through Zapier and these run on their own, with no code and no developer.

When A new subscriber joins your Letterby waitlist Letterby · New Contact
Then Send them a welcome SMS immediately Mobile Message · Send SMS
Use this Zap
When A new subscriber joins your Letterby waitlist Letterby · New Contact
Then Add them to your Mobile Message contact database Mobile Message · Create Contact
Use this Zap
When A subscriber unlocks a new reward Letterby · New Reward
Then Congratulate them with an SMS Mobile Message · Send SMS
Use this Zap
When A new subscriber joins your waitlist Letterby · New Contact
Then Add them to a follow-up SMS campaign Mobile Message · Add Contact to List
Use this Zap
1.6¢ per SMS on Your First Purchase

Your first purchase is just 1.6¢ per message at any volume, and credits never expire. Stock up early and enjoy lasting value.

100% Direct-to-Carrier Delivery

Every message goes directly to Australian mobile carriers, never through other SMS aggregators or offshore routes.

FREE Dedicated Number

Get a dedicated virtual number to send and receive SMS messages, at no extra cost! Perfect for two-way SMS messaging.

Everything Letterby supports on Zapier

Any of these can start or complete an SMS automation with Mobile Message.

Triggers 4
  • New Audience — Triggers when a new audience is created.
  • New Contact — Triggers when a new contact is created.
  • New List — Triggers when a new list is created.
  • New Reward — Triggers when a new reward is created.
Actions 9
  • Create Audience — Creates a new audience
  • Create Contact — Creates a new contact with the provided data and triggers your list’s journey.
  • Create Reward — Rewards a user with a certain number of points for a given action.
  • Delete Audience — Deletes an audience by ID
  • Delete Contact — Deletes a contact by ID
  • Delete Reward — Deletes an reward by ID
  • Update Audience — Updates an audience by ID
  • Update Contact — Updates a contact by ID
Show all 9 actions
  • Update Reward — Updates reward by ID

Everything Your Integration Needs

Easy-to-Use Integration
Easy-to-Use Integration

Our SMS platform is simple to integrate with your existing application.

Custom Sender IDs
Custom Sender IDs

Personalise your messages with a branded sender name, improving trust and engagement with your audience.

Real-Time Delivery Receipts
Real-Time Delivery Receipts

Track your message statuses in real time, ensuring complete transparency and campaign effectiveness.

Inbound SMS Handling
Inbound SMS Handling

Receive replies and incoming messages directly into your app for seamless two-way communication.

Letterby + SMS: common questions

Can I send an SMS to someone the moment they join my Letterby waitlist?

Yes. A Zap sends an instant SMS when a new subscriber is added. You can welcome them, ask them to share, or give them the next step immediately.

Can I send an SMS when a subscriber earns a reward in Letterby?

Yes. When they unlock a reward, a Zap sends them an SMS celebrating the milestone. This reinforces their achievement and keeps them engaged.

Do I need technical skills to connect Letterby to Mobile Message?

No. Zapier handles the connection. Authenticate both accounts, set your trigger and action in Zapier, and your automation starts immediately. No code required.

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