CrewSense

Managed IoT backend for construction PM: APIs + webhooks ready in seconds.

Score: 8.2/10MGEasy BuildReady to Spawn
Brand Colors

The Opportunity

Problem

Solo founders building construction project management tools cannot integrate IoT sensors for real-time site monitoring without a development team.

Solution

CrewSense hosts your construction IoT sensors with pre-built APIs/webhooks that plug into any PM SaaS. Solo founders add endpoints like /site-temp without managing servers or polling. Includes data storage, querying, and basic analytics.

Target Audience

Solo founders building SaaS tools for construction project management

Differentiator

Fully managed backend-as-a-service for construction IoTβ€”dev-free APIs vs. self-hosted chaos.

Brand Voice

supportive

Features

API Instantiation

must-have18h

One-click generate REST APIs for your sensors.

Webhook Endpoints

must-have15h

Auto-forward sensor data to your PM app.

Data Storage

must-have20h

Retain 30+ days of readings with queries.

Query Builder

must-have16h

SQL-like queries for historical data.

Basic Analytics

must-have14h

Trends and averages out-of-box.

Role-Based Access

nice-to-have10h

Share APIs with team.

Data Retention Controls

nice-to-have8h

Custom storage periods.

Advanced Queries

future20h

Joins across sensors.

Total Build Time: 121 hours

Database Schema

users

ColumnTypeNullable
iduuidNo
emailtextNo

accounts

ColumnTypeNullable
iduuidNo
user_iduuidNo
nametextNo

Relationships:

  • β€’ user_id references users(id)

sensors

ColumnTypeNullable
iduuidNo
account_iduuidNo
typetextNo

Relationships:

  • β€’ account_id references accounts(id)

data_points

ColumnTypeNullable
iduuidNo
sensor_iduuidNo
metrictextNo
valuefloatNo
timestamptimestampNo

Relationships:

  • β€’ sensor_id references sensors(id)

API Endpoints

POST
/api/accounts

Create IoT account

πŸ”’ Auth Required
POST
/api/[accountId]/sensors

Add sensor

πŸ”’ Auth Required
GET
/api/[accountId]/data/:sensorId

Query data

πŸ”’ Auth Required
POST
/api/webhooks/[accountId]

Configure webhook

πŸ”’ Auth Required

Tech Stack

Frontend
Next.js 14 + Tailwind + shadcn/ui
Backend
Next.js API + Supabase
Database
Supabase Postgres
Auth
Supabase Auth
Payments
Stripe
Hosting
Vercel
Additional Tools
Supabase Realtimepg_cron

Build Timeline

Week 1: Setup and accounts

22h
  • βœ“ Auth
  • βœ“ Account/Sensor models

Week 2: Data ingestion

28h
  • βœ“ Sensor polling
  • βœ“ Storage

Week 3: APIs and queries

32h
  • βœ“ REST APIs
  • βœ“ Query UI

Week 4: Webhooks/analytics

28h
  • βœ“ Webhooks
  • βœ“ Basic charts

Week 5: Payments/flows

20h
  • βœ“ Stripe
  • βœ“ Onboarding
Total Timeline: 5 weeks β€’ 130 hours

Pricing Tiers

Free

$0/mo

1k data points/mo

  • βœ“1 account
  • βœ“Basic APIs

Pro

$17/mo

100k data points/mo

  • βœ“5 accounts
  • βœ“Webhooks
  • βœ“Analytics

Enterprise

$49/mo

1M+ data points/mo

  • βœ“Unlimited
  • βœ“Custom SLAs

Revenue Projections

MonthUsersConversionMRRARR
Month 1459%$69$828
Month 628013%$787$9,444

Unit Economics

$14
CAC
$320
LTV
4.5%
Churn
91%
Margin
LTV:CAC Ratio: 22.9xExcellent!

Landing Page Copy

IoT Backend for Your Construction PM SaaSβ€”No Servers Needed

Instant APIs & webhooks for sensor data. Focus on your app.

Feature Highlights

βœ“Managed polling
βœ“Query anywhere
βœ“Webhook delivery
βœ“Analytics incl.
βœ“Solo-founder friendly

Social Proof (Placeholders)

"'APIs ready Day 1.' - CrewPM Maker"
"'Handles scaling effortlessly.'"

First Three Customers

Join Construction SaaS Discords, offer beta access to PM tool devs. Run targeted LinkedIn ads to 'solo founder construction software'. Provide white-glove onboarding for first 3.

Launch Channels

Product Huntr/constructionLinkedIn GroupsHacker News

SEO Keywords

construction iot apimanaged iot backend saassensor webhook servicepm iot endpoints

Competitive Analysis

Usage
Strength

Realtime DB

Weakness

No IoT sensor focus

Our Advantage

Construction-optimized with easy APIs

Thingsboard

thingsboard.io
Self-host or enterprise
Strength

IoT platform

Weakness

Heavy setup

Our Advantage

Zero-ops for solos

🏰 Moat Strategy

Network effects via shared sensor best practices and integrations.

⏰ Why Now?

5G edge computing lowers latency; $10B construction IoT market by 2025.

Risks & Mitigation

technicallow severity

High data volume costs

Mitigation

Tiered storage + compression

financialmedium severity

Supabase bills spike

Mitigation

Monitor + pass-through pricing

Validation Roadmap

pre-build3 days

Landing page + waitlist

Success: 50 signups

growth30 days

Affiliate program

Success: 20% MoM growth

Pivot Options

  • β†’General BaaS for IoT
  • β†’Analytics-only
  • β†’White-label for PMs

Quick Stats

Build Time
130h
Target MRR (6 mo)
$800
Market Size
$4000.0M
Features
8
Database Tables
4
API Endpoints
4