Build & Ship

Build & Ship articles from RaftLabs, practical write-ups from engineers who built these things.

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Text-based interviews converted to automated phone calls

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Manual invoice OCR across 40+ gas stations

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SuperValu & Centra loyalty platform with receipt validation

1,062 users in 4 weeks

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Multi-carrier shipping hub for Indonesian eCommerce

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product leader reviewing marketing automation platform architecture for HubSpot alternative build

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How to Build an App Like HubSpot

HubSpot's full suite costs $24,000-$60,000 per year for a 10-person team. A custom HubSpot-like platform costs $100,000-$180,000 to build. Here is what goes into it, what breaks first, and when the math works.

developer building a job portal application with search and candidate filtering interface

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How to Build a Job Portal Like Indeed

Building a job portal costs $35,000–$120,000 depending on scope. Here is what it actually takes to ship one that works, from resume parsing to search relevance to Google Jobs indexing.

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How to build an app like Instacart: Grocery delivery architecture explained

Instacart connects shoppers with grocery stores -- but it doesn't own the inventory. The shopper goes to the physical store, picks the items, and delivers. That three-way model (customer, shopper, retailer) creates unique technical challenges that pure-play delivery apps don't face.

Smartphone displaying a photo social feed interface

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How to Build an App Like Instagram: The Product Architecture Behind Social Photo Platforms

Instagram built a billion-user social network on top of a simple idea: photos with filters. If you are building a social platform -- niche community, brand-owned social, vertical social for a specific industry -- you do not need Instagram's scale. You need the right social mechanics for your specific audience. Here is how to build them.

Gamified quiz platform interface showing a live leaderboard, multiple choice question with countdown timer, and participant score cards

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How to Build an Interactive Learning App Like Kahoot

Kahoot has 350M+ users and $0-$24 per presenter per month in pricing. Corporate training companies, conference organizers, and EdTech startups build branded alternatives when they need white-label, LMS integration, or question types Kahoot doesn't support. Here is what it takes.

E-commerce marketing automation dashboard showing revenue attribution, customer segments, and SMS and email flow builder

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How to Build an App Like Klaviyo

Klaviyo costs $1,700+/month at 100K profiles. Building a custom alternative takes 18-22 weeks and $200K-$280K. Here is the full architecture, from event streaming to predictive analytics.

Developer working on an insurance app interface with policy management dashboard on screen

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How to Build an App Like Lemonade

Building an insurance app like Lemonade costs $180K–$280K and takes 18–22 weeks on the MGA path. Here is the quote engine, claims flow, policy data model, and the regulatory choice that determines everything.

Professional networking app interface on a laptop screen

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How to Build a Professional Network App Like LinkedIn: The Architecture Guide

LinkedIn owns professional networking. But niche professional communities -- vertical networks for healthcare workers, legal professionals, engineers in a specific domain -- are a different product that LinkedIn does not serve well. Here is what it takes to build one.

Smartphone showing a ride-hailing app map interface

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How to Build an App Like Lyft: What Operators Actually Need to Know

Lyft built a ride-hailing business in a market Uber already owned by winning on driver experience. If you are building a regional ride-hailing platform, the lesson is the same: the driver side determines whether your platform works, not the passenger side. Here is what to build and what to skip.

Email marketing dashboard showing campaign analytics and subscriber management

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How to Build an App Like Mailchimp

Building a Mailchimp alternative takes 14-18 weeks and $150K-$220K. The hard part is not the UI. It is email deliverability. Here is the full architecture.

Maintenance technician using a tablet to scan a QR code on industrial equipment in a factory

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How to build an app like MaintainX: CMMS and maintenance management software breakdown

MaintainX raised $50M+ and charges $16-$115 per user per month. A maintenance team of 20 pays up to $28,000 per year. Manufacturers and facilities groups with 100+ assets build custom. Here is what that build involves, what it costs, and when it wins.

Gym studio management app on tablet showing class schedule and member bookings

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How to Build an App Like Mindbody: The Studio Owner's Guide

Mindbody charges $139-$599/month. A chain of 5 studios pays up to $36,000 a year. At 10 locations you're looking at $100K+ annually. Here's how to build the platform you actually own.

product manager reviewing project management platform architecture for Monday.com alternative build

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How to Build an App Like Monday.com

Monday.com costs $9-$19 per seat per month. A custom project management platform costs $90,000-$170,000 to build. Here is what makes it harder than it looks, where the complexity compounds, and when building your own makes financial sense.

Smart TV displaying a streaming platform content grid

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How to Build an App Like Netflix: OTT Platform Architecture for Product Teams

Netflix spent 15 years and billions of dollars building a streaming platform optimized for every device, every network condition, and every taste. You are not building Netflix. You are building a focused OTT platform for a specific content category, audience, or geography. Here is what that actually requires.

Restaurant reservation app on mobile phone with table booking interface

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How to Build an App Like OpenTable: Restaurant Reservations and Two-Sided Marketplace Architecture

OpenTable is a two-sided marketplace connecting restaurants and diners. The product looks simple -- pick a date, pick a time, book a table. Under the hood, real-time inventory locking, restaurant shift management, and the supply-side chicken-and-egg problem make it one of the harder marketplaces to build.