✉ LetterPress
All local — you own everything
✍ Compose Newsletter
Draft > Review > Schedule > Send
✍ Draft
👁 Review
📅 Schedule
📨 Send
0 words Auto-save: off
📄 Newsletter Templates
Tap any template to load it into the editor. Make it yours.

💡 Pro tip: Tap a template, customize it, then Save Draft. Your version lives in your Archive forever.

🤖 AI Writing Assistant
Your voice, amplified -- not replaced

Quick Tools

👥 Subscriber Management
0 subscribers -- your list, your data, always exportable
0
Total
0
Active
0
VIP
0
New (30d)
NameEmailTagsJoinedOpens
📅 Send Schedule
Plan your sends. Consistency builds audiences.

Upcoming

📅

Nothing scheduled. Compose a newsletter and schedule it from the workflow.

Set Recurring Schedule

▶ Publication Workflow
Your production pipeline. Every newsletter moves through Draft, Review, Schedule, Send.
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✍ Drafts
0
👁 In Review
0
📅 Scheduled
0
📨 Sent
📰

Your newsroom is quiet

Compose your first newsletter and it will appear here, moving through Draft, Review, Schedule, and Send.

📈 Analytics
Real numbers. No vanity metrics.
0
Total Sent
0%
Avg Open Rate
0%
Avg Click Rate
0
Growth (30d)

Subscriber Growth

Performance by Newsletter

SubjectSentOpensClicksDate
📚 Archive
Your complete publishing history. Search, reuse, or re-send any edition.
📜

The filing cabinet is empty

Every newsletter you compose lives here forever. Start writing and your archive builds itself.

🎨 Branding
Your newsletter, your look -- every detail customizable

Brand Identity

Live Preview

📨 Email Delivery
Connect your own sending service -- you control the pipe

Delivery Provider

Delivery Status

No sends yet.

📂 Export
Your content, any format, any platform

Export Current Newsletter

📄
HTML Email
Paste anywhere
📝
Plain Text
Universal fallback
🗒
Markdown
Blog-ready
🗎
PDF
Print / archive
💾
JSON
API / backup
📧
Substack
Import-ready

Bulk Export

Export your entire archive, subscriber list, analytics, and branding as a single backup file.

🔒 Provenance Ledger
Every export, send, and publish is SHA-256 stamped. Your content, proven yours.

No content stamped yet. Export or publish to create your first provenance certificate.

🌐 Syndicate Hub
Publish everywhere from one place. Your content, their platforms.
Beehiiv
API v2 -- POST /publications/{pubId}/posts
Not connected
Kit (ConvertKit) v4
API v4 -- POST /v4/broadcasts
Not connected
Mailchimp
API v3 -- Create campaign, set content, send
Not connected
Ghost
Admin API -- POST /posts/ then PUT to publish+send
Not connected
Substack
No API -- clipboard copy + open editor
Manual
Webhook
POST your newsletter to any URL
Not connected

Syndication Log

No syndications yet. Connect a platform and publish.

⚡ Visual Automations
Drip sequences and triggers -- Flo helps you build them

Active Automations

⚡

No automations yet. Create a welcome drip sequence to start.

Drip Sequence Builder

📋 Forms & Landing Pages
Embeddable signup forms + standalone landing pages

Embed Form Builder

Preview

Embed Code

Landing Page Builder

🎁 Referral Program
Turn readers into ambassadors
0
Total Referrals
0
Active Referrers
0%
Conversion Rate

Reward Tiers

⭐
3 Referrals
Shoutout in next newsletter
🏆
10 Referrals
Exclusive bonus content
💎
25 Referrals
Free product / merch

Referral Link Setup

Leaderboard

SubscriberReferralsTier
🎁

No referrals yet. Enable the program and add the referral block to your newsletters.

🔬 A/B Testing
Test everything. Trust data, not guesses.

Create Split Test

Test Results

🔬

No tests yet. Create one to start optimizing.

📡 RSS & Smart Segments
Auto-import content + intelligent audience segments

RSS Feed Import

📡

Add an RSS feed URL to import content.

Smart Segments

Auto-group subscribers by behavior. Use segments for targeted sends.

All Engaged (opened 3+) Cold (no opens 30d) New (last 7d) VIP Referred

AI Image Generation

Generate header images for your newsletters. Uses your configured AI endpoint.

🎙️ Audio Narration Studio

Turn your newsletters into podcasts. Pick a voice, add music, narrate everything.

🗣️ Voice Library

Connect your own ElevenLabs, Google, or Azure voice IDs

⚙️ Narration Settings

1.0x
50%
75%

🎵 Music Themes

Add background music or mood to your narration. Mixes automatically.

🔇 25% 🔊

🎬 Generate Narration

Turn your current newsletter into audio. Uses your selected voice + music theme.

No newsletter selected 0 words
Estimated duration: --

📚 Audio Library

No narrations yet. Generate your first one above!

📡 The LetterPress Network

Every newsletter becomes a spoken episode. Every creator adds to the feed. The podcast grows itself.

0
Creators
0
Episodes
0
Listeners
0
Channels

Latest Episodes

Browse Channels

Discover Creators

🎤 Your Podcast Profile

📋 Auto-Publish Settings

Every newsletter you send can automatically become a podcast episode.

📊 My Episodes

📇 Universal Platform Index

Every paid newsletter outlet -- scraped, mapped, and loaded. One dashboard for the entire ecosystem.

Beehiiv

API Ready
HTML BlocksSchedulingAnalyticsSegments
Free - $99/mo
POST /v2/publications/{pubId}/posts | Bearer auth

Kit (ConvertKit) v4

API Ready
BroadcastsSequencesTagsCommerce
Free - $59/mo
POST /v4/broadcasts | Bearer auth

Mailchimp

API Ready
CampaignsAutomationsSegmentsA/B Tests
Free - $350/mo
3-step: create → content → send | Basic auth

Ghost

API Ready
PostsMembersNewslettersTiers
$9 - $199/mo
POST /posts/ → PUT with newsletter slug | JWT auth

Substack

Clipboard Fallback
PostsPaid SubsNotesPodcast
Free (10% of paid)
No public API -- clipboard copy + open editor

Webhook / Custom

Webhook
Any EndpointCustom HeadersJSON/HTML
Self-hosted
POST to any URL with custom payload

Buttondown

API Ready
EmailsSubscribersTagsMarkdown
Free - $29/mo
POST /v1/emails | Token auth

Revue (Legacy)

Sunset
ArchiveImport Only
Discontinued
Twitter shut it down -- import/archive only

MailerLite

API Ready
CampaignsAutomationsFormsSites
Free - $18/mo
POST /api/campaigns | Bearer auth

Campaign Monitor

API Ready
CampaignsJourneysSmart Email
$9 - $149/mo
POST /api/v3.3/campaigns | Basic auth

Sendinblue / Brevo

API Ready
EmailSMSWhatsAppCRM
Free - $65/mo
POST /v3/emailCampaigns | api-key header

AWeber

API Ready
BroadcastsSequencesLanding Pages
Free - $29/mo
POST /1.0/accounts/{id}/lists/{id}/broadcasts | OAuth 2.0

Add Custom Platform

🔑 Single Identity Layer

One signup. One identity. Accounts created and synced everywhere automatically.

Master Publisher Profile

Display Name: Your Newsletter Name

Email: you@example.com

Bio: Newsletter creator, writer, human.

Avatar:

Connected Accounts

One-Click Account Creation

Enter your API keys once. LetterPress auto-provisions your publisher profile on each platform.

🤖 Autopilot Mode

Fully automated newsletter generation. Flo writes, schedules, and publishes while you sleep.

Autopilot OFF

Next Scheduled Runs

Enable Autopilot to see upcoming schedule

Autopilot Queue

No newsletters queued. Enable Autopilot to start generating.

💰 Cross-Platform Monetization

Unified payment and subscriber management across every platform.

$0
Monthly Recurring Revenue
0
Total Paid Subscribers
0
Free Subscribers
$0
Avg Lifetime Value

Subscription Tiers

Free $0/mo 0 subscribers
Supporter $5/mo 0 subscribers
Premium $15/mo 0 subscribers
Founding Member $50/mo 0 subscribers

Revenue by Platform

Beehiiv $0.00 0 paid
Kit $0.00 0 paid
Ghost $0.00 0 paid
Substack $0.00 0 paid
Stripe Direct $0.00 0 paid

Connect Payment Provider

🛡️ Compliance + Verification

Platform rules, formatting requirements, and identity verification -- all handled automatically.

Beehiiv Compliance

✓HTML blocks format
✓Image size < 5MB
✓Unsubscribe link present
!Physical address required

Kit Compliance

✓Broadcast HTML valid
✓Subject line < 150 chars
!Confirmed opt-in recommended

Mailchimp Compliance

✓Campaign format valid
✓From name matches account
✓Permission reminder set
✓CAN-SPAM footer

Ghost Compliance

✓JWT token valid
✓Newsletter slug configured
!Member import verified

CAN-SPAM / GDPR

✓Physical address in footer
✓Unsubscribe mechanism
!GDPR consent checkbox
!Data export capability
✓No deceptive subject lines

Email Deliverability

!SPF record configured
!DKIM signing enabled
!DMARC policy set
✓No spam trigger words

Identity Verification Status

Email Domain Not Verified
Sender Identity Not Verified
CAN-SPAM Compliance Partial
GDPR Compliance Not Set Up

📈 Scalability Model

How your newsletter empire grows with users and platforms.

6
Connected Platforms
+2 available to add
0
Total Subscribers
Across all platforms
0
Newsletters Sent
This month
0
Active Automations
Running now
100%
Local Uptime
No server needed
$0
Monthly Infrastructure Cost
It runs on YOUR machine

Platform Growth Roadmap

Phase 1: Core Platform (v1.0)

Rich editor, templates, AI writer, scheduling, subscribers, analytics, SMTP, export

Phase 2: Distribution + Flo (v2.0)

Syndicate Hub, Flo AI co-editor, automations, forms, referrals, A/B testing, RSS, PWA

Phase 3: Infrastructure (v2.0+)

Universal Platform Index, Single Identity, Autopilot, Monetization Sync, Compliance, Scalability

Phase 4: Enterprise (v3.0)

Team workspaces, multi-newsletter management, white-label, API access for custom integrations

Phase 5: Ecosystem (v4.0)

Marketplace for templates/automations, community features, ad network, sponsorship matching

The LetterPress Advantage

ConvertKit costs $348/year. Mailchimp costs $240/year. Beehiiv costs $588/year.
LetterPress costs $59. Once. Forever. You own it.

F
Flo CastleberryYour AI Co-Editor
Hey sugar! I'm Flo, your co-editor. I can write, edit, brainstorm, manage your list, or just chat. What's on your mind?