From idea to live productin weeks, not months.
Senior engineering paired with AI speed. We ship production-grade, revenue-ready software with 100% source code ownership.
Trusted by 12+ founders across B2B & creator tech
Turnaround
7–21 Days
Codebase
100% Yours
QA / Auth
Production
02 · Self-Qualification
Built specifically for your situation.
Whether you have Figma files ready, a client to fulfill, or an urgent idea to test, Existify gives you a senior engineering team in your corner.
Stuck on Backend, Auth, or Stripe?
You have Figma mocks or a frontend prototype ready, but hit a wall wiring up secure authentication, database models, webhooks, and billing.
Need a Real MVP Without Burning Runway?
Traditional agencies quote $25,000+ and 4 months of meetings. No-code tools produce brittle prototypes that can't scale past 50 users.
Want to Offer Dev Work Without Hiring?
Clients demand custom web apps and client portals alongside your designs, but unreliable freelance developers put your client relationships at risk.
Blocked by 6-Month Internal Dev Backlogs?
You need to validate a new internal tool or spin-off product fast, but internal bureaucracy, security queues, and IT backlogs stall your momentum.
Recognize your situation? Stop losing time on the wrong development path.
01 · The No-Brainer Comparison
The high cost of the wrong development path.
Why wait 4 months with an agency or burn weeks hitting the no-code ceiling? See why founders choose the Existify sprint model.
Traditional Agency
Expensive, sluggish, and bloated with meeting overhead.
DIY No-Code / AI Prompting
Fast to start, but hits an impossible technical wall.
Existify Sprint
Senior engineering precision powered by curated AI speed.
AI builders generate fragile UI prototypes. Existify ships scalable, revenue-ready software with 100% code ownership.
03 · The Speed & Architecture Moat
How we ship in days when others take months.
We are not a slow agency, and we are not a fragile no-code studio. We are senior engineers who use AI for speed — and engineering discipline for reliability.
The Core Moat
"Anyone can prompt AI. We know when to trust it — and when to fix it."
Senior engineering guiding every sprint
The 3-Phase Sprint Execution
Strict 7–21 Day TimeboxStrategy & Scope Freeze
We map the core user flow, database schemas, and integration points. Scope is strictly signed off and frozen on Day 3 so there are zero surprises or delays.
Phase Deliverables
AI-Augmented Production Engineering
Rapid AI generation coupled with senior engineering refactoring. We build clean UI views, Postgres database logic, authentication, and Stripe payments.
Phase Deliverables
QA, Vercel Launch & Handover
Comprehensive end-to-end QA testing, custom domain SSL deployment to Vercel, complete GitHub repository transfer, and a 1-on-1 walkthrough.
Phase Deliverables
We don't learn AI tools on your project.
We've built proven internal workflows using Claude 3.7, GPT-4o, and Cursor. Every sprint leverages optimal models for instant scaffolding, schema generation, and boilerplate — cutting 60% of baseline dev time.
AI generates. Senior engineers review, fix & architect.
AI-generated code has silent failure points: broken auth tokens, N+1 database bottlenecks, unindexed tables, and missing webhook retries. Our senior engineers review every file, eliminating tech debt before launch.
Zero vendor lock-in. 100% yours to scale.
Unlike no-code platforms where your app dies if the service shuts down, you receive the complete, clean TypeScript repository on GitHub with setup documentation. Hand it to any developer or run it yourself forever.
The result: What a normal agency takes 3–4 months to build, and a DIY builder spends weeks trying to prompt correctly — we ship in a structured, validated, production-ready 7–21 day sprint.
04 · Zero Spaghetti Code
The production-grade stack top SaaS companies use.
No throwaway prototypes. No proprietary vendor lock-in. We build on an industry-standard, scalable foundation that your future in-house engineers will love.
Frontend Architecture
Responsive, accessible, lightning-fast interfaces.
Backend & Microservices
Robust business logic, APIs, and background jobs.
Database & Storage
Enterprise relational database with real-time sync.
Auth, Payments & Email
Revenue-generating infrastructure ready from Day 1.
Need a custom or existing stack? We adapt.
Already have an established stack like AWS, Fastify, Firebase, or Python? We can tailor the sprint to fit your exact architecture.
04 · The Process
How every sprint runs
No surprises. No scope creep. Every phase has a clear deliverable and you see progress in real time.
Scope Freeze
Strategy call to define what we're building, what we're not building, and why. Output: signed scope doc and project brief.
Deliverables
Our delivery guarantee — If we don't deliver within the agreed timeline due to our delay, we'll continue working at no extra cost until delivery.
05 · Pricing
Choose your path from
idea to product.
Fixed-scope product sprints designed for founders who want momentum, not months of development delays.
MVP Validation Sprint
starting at
Launch a production-ready MVP and start collecting feedback from real users.
Best For
Outcome
Go from idea to a live product that real users can sign into, use, and provide feedback on.
SaaS Launch Sprint
starting at
Build a scalable SaaS product with a dedicated architecture designed for growth.
Best For
Outcome
Launch a scalable SaaS product ready for customers, payments, integrations, and future growth.
Startup Care
starting at
For startups that have launched and need ongoing improvements, maintenance, and technical support.
Best For
Outcome
Continue shipping with confidence after launch.
Every project starts with a discovery call. Pricing shown represents starting investment levels and may vary based on scope, integrations, and product complexity.
07 · Meet The Founder
Why I built Existify:
Ending the slow agency trap.
Over the past several years, I've engineered scalable web apps, AI integrations, and production backends for startups, agencies, and high-growth products.
Along the way, I watched the exact same painful scenario play out repeatedly: founders would hand $15,000–$30,000 to traditional agencies, wait 4 months through endless discovery meetings, and receive a bloated codebase that was slow and unmaintainable.
Alternatively, they'd try DIY no-code or raw AI generation, only to hit a brick wall the moment they needed secure auth, Stripe billing, or complex database queries.
Existify is the disciplined third option. We pair the rapid code-generation power of modern AI with senior engineering judgment, rigid scope timeboxes, and 100% full source code ownership.
If you have an idea worth testing, let's ship it next week.
Sahil Mondal
FOUNDER & SENIOR ENGINEER
08 · Objection-Handling FAQ
Everything you need to know before starting.
Have a specific architectural requirement or question not covered here?
Have an idea worth testing?
Let's launch it next week.
Skip the 4-month agency wait and fragile no-code trap. Book a 30-minute architecture strategy session to lock in your scope and timeline.