LifePulse — Visual Customer Lifecycle Automation That Replaces Your $800/Month HubSpot Workflow Tab
You built a SaaS, and your onboarding is a single welcome email from 2023. LifePulse is a visual event-driven lifecycle automation platform with pre-built templates for every lifecycle moment — signup, day 3 inactivity, trial expiry, churn save — connected to email, SMS, and in-app channels. HubSpot charges $800/month for this. You will charge $49.
Difficulty
intermediate
Category
SaaS
Market Demand
High
Revenue Score
8/10
Platform
Web App
Vibe Code Friendly
No
Hackathon Score
5/10
What is it?
SaaS founders and SMB ops teams burn hours duct-taping Klaviyo to Segment to HubSpot to get basic lifecycle messaging working, and most never finish the setup. LifePulse gives them a visual timeline editor where they map customer events (signed_up, feature_used, payment_failed) to multi-channel message sequences — email via Resend, SMS via Twilio, in-app via a drop-in JS snippet. Pre-built templates for the 15 highest-impact lifecycle moments ship on day one. The event SDK is a single npm install and three lines of code. Buildable in 3 weeks because the complexity is in the UI, not the runtime — a Supabase Edge Function processes events and walks the sequence tree. Segment and Klaviyo prove the demand; the gap is a simple, affordable, visual tool for sub-$1M ARR SaaS teams who are not enterprise.
Why now?
Resend's deliverability API and Supabase Edge Functions make it possible to build a reliable event-driven email and SMS engine in a week in May 2026 — the infrastructure cost that made this a $500k engineering project 3 years ago is now a $110/month bill.
- ▸Visual timeline editor: drag lifecycle events onto a timeline and attach multi-channel messages.
- ▸15 pre-built templates for top lifecycle moments deployable in one click.
- ▸Drop-in npm event tracking SDK: three lines of code to start sending events.
- ▸Real-time sequence analytics showing open rate, click rate, and conversion per step.
Target Audience
SaaS founders and ops managers at sub-$1M ARR companies currently using manual email sequences or overpriced enterprise tools — approximately 80,000 bootstrapped SaaS products on Indie Hackers and Product Hunt.
Example Use Case
Tom, founder of a B2B SaaS with 400 trial users, deploys the day-3-inactivity template in 15 minutes, sees a 12% trial-to-paid lift in 30 days, and saves $600/month versus HubSpot.
User Stories
- ▸As a SaaS founder, I want to visually map a 5-step onboarding email sequence triggered by a signed_up event, so that new users get guided activation messages automatically.
- ▸As an ops manager, I want to deploy a pre-built churn-save SMS template in under 5 minutes, so that I can recover at-risk users without building from scratch.
- ▸As a developer, I want to install an npm SDK and fire events in three lines of code, so that I can connect my app to LifePulse without a multi-day integration project.
Done When
- ✓SDK install: done when developer runs npm install lifepulse-sdk, adds three lines of code, fires a test event, and sees it appear in the LifePulse dashboard within 5 seconds.
- ✓Sequence activation: done when user builds a 3-step sequence, clicks Activate, and the first message fires automatically when a matching event arrives.
- ✓Template deploy: done when user clicks a pre-built template, sees it pre-loaded in the editor, and can activate it in under 3 clicks with no blank fields.
- ✓Delivery log: done when the dashboard shows each sent message with contact name, channel, timestamp, and open status updating in real time.
Is it worth building?
$49/month x 40 customers = $1,960 MRR at month 2. $149/month x 150 customers = $22,350 MRR at month 8. Math assumes 8% conversion on ProductHunt and Indie Hackers launches.
Unit Economics
CAC: $40 via Indie Hackers and ProductHunt organic. LTV: $882 (18 months at $49/month). Payback: 1 month. Gross margin: 84%.
Business Model
SaaS subscription — $49/month for up to 2,500 contacts, $149/month for 10k contacts.
Monetization Path
Free tier: 250 contacts, 3 sequences — hits limit fast for growing SaaS products, driving upgrade.
Revenue Timeline
First dollar: week 3 via Indie Hackers beta outreach. $1k MRR: month 2. $5k MRR: month 6. $10k MRR: month 11.
Estimated Monthly Cost
Supabase: $25, Resend: $20, Twilio: $30 (usage-based), Vercel: $20, Stripe: ~$15. Total: ~$110/month at launch.
Profit Potential
Full-time viable at $6k–$15k MRR. Extremely sticky product — churn is low when lifecycle messaging is embedded in customer workflows.
Scalability
High — add team seats, white-label for agencies, and Slack and webhook action nodes in V2.
Success Metrics
Week 2: 5 SaaS products installed the SDK. Month 1: 15 paying customers. Month 3: less than 6% monthly churn.
Launch & Validation Plan
Post in r/SaaS and Indie Hackers with a working demo of a churn-save sequence. Offer free setup for 10 beta SaaS founders before adding paywall.
Customer Acquisition Strategy
First customer: post 'Show IH: I built a $49/month alternative to HubSpot lifecycle automation' on Indie Hackers and DM 20 bootstrapped SaaS founders with under 1k users. Ongoing: ProductHunt launch, SEO on 'HubSpot alternative lifecycle automation', Twitter/X SaaS founder communities.
What's the competition?
Competition Level
High
Similar Products
Klaviyo (e-commerce focused, not SaaS), HubSpot Workflows ($800/month minimum), Customer.io (powerful but complex and expensive) — LifePulse fills the affordable visual-first gap for indie SaaS.
Competitive Advantage
10x cheaper than HubSpot for the same lifecycle automation, pre-built templates eliminate the blank-canvas problem, and the SDK install is 3 lines versus Segment's 20-step setup.
Regulatory Risks
CAN-SPAM and GDPR compliance required — include unsubscribe links in all emails, provide data deletion API, and document data processing in privacy policy.
What's the roadmap?
Feature Roadmap
V1 (launch): email and SMS sequences, 15 templates, event SDK, delivery log. V2 (month 2-3): A/B step testing, Slack action node, contact segmentation. V3 (month 4+): in-app messaging channel, white-label for agencies, API access.
Milestone Plan
Phase 1 (Week 1-2): event receiver, runner engine, and editor ship with 5 templates. Phase 2 (Week 3): Stripe billing, SMS support, 10 beta SaaS installs. Phase 3 (Month 2): 25 paying customers, churn under 7%.
How do you build it?
Tech Stack
Next.js, Supabase, Resend, Twilio, Stripe — build with Cursor for event engine, v0 for visual timeline editor UI.
Suggested Frameworks
React Flow for timeline visualization, Supabase Edge Functions for event processing, Resend SDK for email delivery
Time to Ship
3 weeks
Required Skills
Event-driven architecture in Supabase Edge Functions, Resend and Twilio API integration, React Flow timeline UI.
Resources
Supabase Edge Functions docs, Resend API docs, Twilio SMS docs, React Flow examples.
MVP Scope
app/page.tsx (landing), app/dashboard/page.tsx (sequence list), app/editor/[id]/page.tsx (timeline editor), app/api/events/route.ts (inbound event receiver), app/api/sequences/route.ts (CRUD), lib/runner.ts (sequence execution logic), lib/email.ts (Resend wrapper), lib/sms.ts (Twilio wrapper), lib/db/schema.ts (contacts, events, sequences, steps, deliveries), sdk/index.ts (npm tracking SDK), .env.example.
Core User Journey
Install SDK -> send first test event -> pick template -> customize message -> activate -> see delivery log populate with real sends -> upgrade when contact limit hit.
Architecture Pattern
Client SDK fires event -> POST /api/events -> Supabase Edge Function matches contact to active sequences -> checks current step condition -> calls Resend or Twilio -> logs delivery -> increments step counter -> stores in Postgres.
Data Model
User has many Sequences. Sequence has many Steps (type, delay, message). Contact has many ContactEvents. ContactEvent triggers SequenceEnrollment. Enrollment has many Deliveries (channel, status, timestamp).
Integration Points
Supabase for Postgres database and Edge Functions, Resend for email delivery, Twilio for SMS, Stripe for billing, npm registry for tracking SDK distribution.
V1 Scope Boundaries
V1 excludes: in-app messaging channel, A/B testing on steps, team collaboration, white-label, Slack notifications, mobile SDK.
Success Definition
A SaaS founder installs the SDK, deploys a lifecycle sequence, and sees their first automated message fire against a real user event without any founder involvement.
Challenges
Distribution is the hardest problem — lifecycle automation is a considered purchase, not an impulse buy, and founders won't migrate off HubSpot until pain is extreme. Budget 8 weeks of content and community before paid conversions accelerate.
Avoid These Pitfalls
Do not build the in-app messaging channel in V1 — email and SMS alone cover 90% of use cases and halve build time. Do not underestimate the SDK distribution problem — getting founders to install a tracking snippet requires trust, so open-source the SDK immediately. First 10 customers take 3x longer than expected — invest in community before code.
Security Requirements
Supabase Auth magic link, RLS on all tables scoped to user_id, 100 req/min rate limit on /api/events endpoint, validate event payload schema on ingest, GDPR unsubscribe and deletion endpoint required.
Infrastructure Plan
Vercel for Next.js, Supabase for Postgres and Edge Functions, no file storage needed, GitHub Actions for CI, Sentry for errors — ~$110/month total.
Performance Targets
200 DAU at launch, event processing under 500ms, email delivery latency under 2s via Resend, page load under 2s, no caching needed at launch scale.
Go-Live Checklist
- ☐Security audit complete.
- ☐Stripe billing tested end-to-end.
- ☐Sentry configured and receiving errors.
- ☐Delivery monitoring dashboard live in Supabase.
- ☐Custom domain with SSL configured.
- ☐Privacy policy with CAN-SPAM and GDPR sections published.
- ☐5 beta SaaS founders ran sequences against real users.
- ☐Rollback plan: Vercel instant rollback to previous deployment.
- ☐Launch post drafted for Indie Hackers and ProductHunt.
First Run Experience
On first run: 5 pre-built sequence templates are visible in the dashboard with preview cards. User can immediately open a template, see the full timeline editor pre-populated, and click a Send Test Email button to receive a sample message. No manual config required: Resend test mode delivers emails with no API key entry needed from the user in demo mode.
How to build it, step by step
1. Define event schema: contact_id, event_name, properties JSON, timestamp. 2. Run npx create-next-app lifepulse with TypeScript and Tailwind. 3. Install Supabase JS, Resend, Twilio, Drizzle ORM, Stripe. 4. Build lib/db/schema.ts with all five core entities. 5. Build app/api/events/route.ts that receives events and triggers lib/runner.ts. 6. Build lib/runner.ts that walks sequence steps and fires Resend or Twilio on schedule match. 7. Build timeline editor using React Flow with Step nodes and delay connectors using Cursor. 8. Seed 5 pre-built templates in the DB for first-run experience. 9. Add Stripe $49/month billing with contact-count middleware enforcement. 10. Deploy to Vercel, install SDK in a test app, fire a signed_up event, and verify the welcome email arrives.
Generated
May 23, 2026
Model
claude-sonnet-4-6
Disclaimer: Ideas on this site are AI-generated and may contain inaccuracies. Revenue estimates, market demand figures, and financial projections are illustrative assumptions only — not financial advice. Do your own research before making any business or investment decisions. Technology availability, pricing, and market conditions change rapidly; always verify details independently.