How fast can you ship an MVP?

21 calendar days from kickoff to production deploy on the 21-Day MVP path. Custom Software builds run 6 to 26 weeks depending on scope.

How much does an MVP cost?

21-Day MVP from $5,000 USD. Custom Software Development from $11,000. AI Development from $7,000. Final quote depends on scope and integration count.

What stack do you use?

Default stack: Next.js, TypeScript, Node.js, Python, PostgreSQL, AWS, Stripe, Clerk, OpenAI, Anthropic Claude.

What services does Parallel Loop offer?

Three service lines: 21-Day MVP Development (from $5,000), Custom Software Development (from $11,000), and AI Development and AI Agents (from $7,000). Within these, 11 specialised service pillars including mobile app development, ecommerce, automation, CRM integration, cloud DevOps, and enterprise solutions.

How is the 21-Day MVP different from Custom Software?

The 21-Day MVP is productised with fixed scope, fixed price, and fixed 21-day timeline. It fits single-workflow products with off-the-shelf integrations. Custom Software is bespoke, sprint-based, and runs 6 to 26 weeks for products with multiple workflows, regulated scope, or enterprise integrations.

What stacks do you support?

Default stack: Next.js, TypeScript, Node.js, Python, PostgreSQL, AWS, Stripe, Clerk, OpenAI, Anthropic Claude. We can work in Java, .NET, Go, Ruby, PHP, Swift, Kotlin where the existing landscape requires it.

Do you offer AI development separately?

Yes. AI Development and AI Agents is a separate service line covering chatbots, generative AI, machine learning, computer vision, NLP, and AI consultation. From $7,000 for a chatbot MVP up to $35,000+ for a custom AI platform.

What is included in pricing?

Working software, full source code, CI/CD pipeline, staging plus production environments, runbook, monitoring setup, dual on-call cover for 2 weeks post-launch. We do not charge separately for architecture, design, or QA. They are part of every engagement.

Can you handle compliance and security?

Yes. We build HIPAA, PCI DSS, SOC 2 Type II, GDPR, ISO 27001, NERC CIP, IEC 62443 architecture where the build requires it. We do not issue audit certificates. We build the architecture and evidence collection that supports your audit firm.

Do you offer maintenance after launch?

Yes. Maintenance retainer from $2,200 per month. On-call cover, dependency upgrades, small features, security patching. SLA-backed. We do not require a retainer to do a build; we offer it as an option.

How fast can you start?

Typically 2 to 4 weeks from scoping call to kickoff. We do not double-book the team.

What is the average engagement length?

21-Day MVP: 21 calendar days. Custom Software: 6 to 26 weeks. AI Development: 4 to 20 weeks. Maintenance retainers run month to month.

How do I know which service line fits?

Book the free 45-minute scoping call. 30 minutes on your build, 15 minutes on which path fits. We tell you at the call if your build does not fit our service lines.

What exactly do I get for $5,000?

A live production app: user accounts, Stripe payments, one core workflow built properly, an admin panel, monitoring, and a deploy pipeline. Plus the repo, all accounts in your name, and a written runbook. It's a real product, not a demo.

100%. Repo, hosting accounts, Stripe account, and IP all transfer to you on day 21. We keep nothing.

What if my idea is too big for 21 days?

We'll tell you on the free call. That's the point of it. Bigger builds (two-sided marketplaces, regulated products, heavy integrations) get a separate quote and a realistic timeline, usually 6–16 weeks. And sometimes the honest answer is trim the scope and launch sooner.

Who actually builds it?

A three-person pod: a product lead, a senior full-stack engineer, and a designer. The same delivery lead you meet on the scoping call runs your build. No handoffs to a rotating bench.

What stack do you build on?

Boring and proven: React or Next.js, Node, Postgres, Stripe, deployed on AWS or Vercel. No exotic frameworks. Any developer you hire later can pick it up in an afternoon. That's deliberate.

What happens after day 21?

30 days of bug fixes are included, free. After that most founders take a light support retainer or a v2 build, but there's no lock-in. You have the code, the accounts, and a runbook; anyone can take over.

MVP development · Fixed price · Fixed date

From $5,000. Your MVP, live in 21 days.

No six-month timeline. No $50K invoice. No disappearing dev team. A working product taking real payments on a date we put in the contract.

Book a free scoping call →

You'll talk to the delivery lead, not a sales rep. 30 minutes. Zero obligation. If your idea doesn't fit 21 days, we'll tell you on the call.

2 build slots open for kickoffs this month.

Book this week → scope locked in 48 hours → live by .

21CALENDAR DAYS

$5,000STARTING PRICE

$14M+RAISED BY OUR FOUNDERS

100%CODE OWNERSHIP

Get started in 60 seconds

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Miss day 21? You get every dollar back.

Money-back guarantee, written into the contract, not the fine print.

Watch · 60 seconds

See how a 21-day build actually runs.

The whole playbook: scope lock, Friday demos, day-21 handover, from the person who runs your build. No slides.

Why scope-lock on day 2 is what makes the date real
What you get on day 21 (repo, accounts, runbook)
How the money-back guarantee works

01: Sound familiar?

Every founder we work with has one of these stories.

The slow burn

"Three months turned into nine."

The agency kept billing. The launch date kept moving. The market moved on.

The money pit

"$40,000 gone before a single customer."

Custom everything, no deadline, and an invoice that grew faster than the product.

The ghost

"My developer just… disappeared."

Half-finished repo, no documentation, no handover. Starting from zero, again.

We built the 21-day playbook to make all three impossible: fixed scope, fixed price, and a launch date in the contract, with your money back if we miss it.

02: How it works

Three steps. Twenty-one days.

Step 1 · Today

Book a scoping call

30 minutes with the delivery lead. You leave with a fixed quote and an honest answer on whether your idea fits 21 days.

Step 2 · Day 0–2

We lock the scope

One page. One core workflow. Signed by both sides. After day 2, nothing moves. That's why nothing slips.

Step 3 · Day 21

You go live

Production deploy. Payments on. Code, accounts, and runbook handed over. Your first customer can sign up that day.

Start with the free call →

Built on this playbook. Live today.

Live on day 21MyPandaPlanTax planning platform

Consumer tax-planning platform with a full calculation engine, scoped, built, and launched on schedule.

Read case study →

AI in v1GetLemAI compliance platform

AI compliance product with a grounded context layer and audit log, shipped as a 21-day AI-feature MVP.

Read case study →

Mobile · iOS + AndroidWowbeenSocial video review

Social video review app with upload, ranking, and social graph, through App Store review and live.

Read case study →

Full library on the case studies page →

04: In their words

Founders on the 21-day sprint.

4.9 average on Clutch. Real founder outcomes from fixed-scope MVP builds.

★★★★★

I'd been quoted $45K and four months by two agencies. Parallel Loop shipped in 21 days for $5K and we had paying users in week one. I kept waiting for the catch. There wasn't one.

Founder, B2B SaaSUnited States

Clutch

★★★★★

The scope lock felt strict at first. By day 10 I understood it's the reason they actually hit the date. Every agency should work like this.

Founder, marketplace startupUnited Kingdom

Clutch

★★★★★

Demo every three days, no surprises, and on day 21 the product was live and taking Stripe payments. We raised our pre-seed off that build.

CEO, fintech toolSingapore

Clutch

★★★★☆

One integration got bumped to the day-22 list, which stung for a moment. But the core product shipped on time and worked. They were honest about trade-offs from the first call.

Founder, logistics SaaSAustralia

Clutch

★★★★★

After a developer ghosted me mid-build, I was burned out on outsourcing. This was different: a real process, a real deadline, and I own every line of code.

Solo founder, consumer appUnited States

Email after launch

★★★★★

The free scoping call alone was worth it. They told me half my feature list didn't need to exist for launch, and they were right.

Founder, healthtech pilotCanada

Clutch

05: The honest comparison

Your three options, side by side.

	21-Day MVP	Typical agency	Freelancer
Price	From $5,000, fixed	$30K–$100K+	$8K–$25K, open-ended
Timeline	21 days, contractual	3–9 months	"It depends"
Scope creep	Locked day 2	The business model	Common
If the date slips	Full refund	You keep paying	You keep waiting
Code ownership	100%, day 21	Usually, eventually	Depends on contract
Team	Product lead + senior dev + designer	Rotating juniors	One person, one skillset

06: Fit check

We're not for everyone. Check before you book.

The 21-day sprint fits if

You have one core idea you need real users on in weeks, not quarters
Your first-version budget is $5K–$15K
You can give feedback within 48 hours. The timeline depends on it
You'd rather launch at 80% and learn than polish at 100% and guess

It doesn't fit if

V1 needs HIPAA, banking, or other regulated compliance. That's a custom build, not a sprint
Every decision goes through a committee. 48-hour feedback loops break
You want the full 3-year vision in version one
Pixel-perfection matters more to you than a launch date

Not sure which side you're on? Book the call anyway. We'll tell you in the first ten minutes, and if we're not the right shop we'll point you to one that is.

07: Pricing

Fixed prices. Agreed before kickoff.

50/50 payment terms. The number we quote is the number you pay.

Start here (free)

Scoping call

30 min with the delivery lead
Fixed quote within 48 hours
An honest "no" if it doesn't fit

Book the free call →

21-Day MVP

From $5,000

Auth, payments, one core workflow
Admin panel + production deploy
100% code ownership on day 21
Money-back guarantee

Scope my build →

For post-launch cover

MVP + paid pilot

From $7,000

Everything in the 21-Day MVP
4 weeks of on-call senior dev
Bug fixes + small features

Scope my build →

For AI products

MVP + AI feature

From $10,000

Everything in the 21-Day MVP
RAG or chat layer on your data
Usage-based billing built in

Scope my build →

Other builds: Mobile MVP (iOS + Android) from $8,000 · Two-sided marketplace from $12,000 · Post-launch retainer from $3,000/mo

08: Before you ask

Fair questions.

Yes. 21 calendar days from kickoff to production deploy. Scope locks on day 2, and anything new becomes day-22 work. That discipline is the whole trick. If we miss the date, you get a full refund. We've paid out twice in 47 builds.

PARALLEL LOOP

“

FOUNDER NOTE

We started Parallel Loop after watching founders burn six months and $60K on products nobody wanted. 21 days isn't a gimmick. It's the discipline we wish someone had given us.

Nabeel S.Founder & delivery lead, the person on your scoping call

09: Next step

Scope your MVP this week.

Tell us what you're building. You'll get a fixed quote within 48 hours of the call, or an honest reason why not.

30-minute call with the delivery lead, not sales
Fixed quote in writing within 48 hours
Money-back guarantee on the 21-day date
You own 100% of the code
Book today and go live within 23 days of kickoff

Book a free scoping call →

Prefer to skip the form? Book straight into the calendar →

Use the form in the hero to get a Calendly link by email, or book directly above.

From $5,000. Your MVP, live in 21 days.

Get started in 60 seconds

Who we've built for.

See how a 21-day build actually runs.

Every founder we work with has one of these stories.

Three steps. Twenty-one days.

Book a scoping call

We lock the scope

You go live

Built on this playbook. Live today.

Founders on the 21-day sprint.

Your three options, side by side.

We're not for everyone. Check before you book.

The 21-day sprint fits if

It doesn't fit if

Fixed prices. Agreed before kickoff.

Scoping call

21-Day MVP

MVP + paid pilot

MVP + AI feature

Fair questions.

Scope your MVP this week.