Tenth Floor Labs

Build — Web Apps & Custom Software

Web Apps & Custom Software Built Around How You Work

We build web apps, SaaS products, customer portals and internal dashboards for founders and growing businesses. It suits teams stuck on spreadsheets, or with an idea to test fast. The code, cloud and accounts are in your name, and you talk directly to the engineers.

Mon–Sat · 9am–8pm IST
Starting from
₹1.25L
one-time
Timeline
6–20 weeks
typical
After launch
Support & hosting management from ₹15k/mo (optional)
Maulik Gupta, Founder & Lead Engineer
Maulik Gupta
Founder & Lead Engineer · you'll talk to me

Sound familiar?

Signs you need custom software

  • Our whole business runs on Excel sheets and WhatsApp groups.
  • Ready-made software does 70% of what we need and we hack around the rest.
  • We have a SaaS idea but need a working product to show investors or first customers.
  • Our team re-types the same data into three different tools.
  • Our clients want a login to see their orders, reports or documents.

Built for

Startup founders building an MVP or SaaS productFintech, lending and accounting businessesEd-tech companies and coaching institutesLogistics, manufacturing and distribution businessesAgencies and service firms needing client portalsOperations teams replacing spreadsheets with a real tool

What we do

What's included in Web Apps & Custom Software.

01

MVP Development

A working first version in about 6 weeks. Just enough features to get real users and learn what to build next.

02

SaaS Development

Sign-up, subscriptions, billing, user roles and multi-tenant setup, so each customer gets their own secure space.

03

Custom Web Application Development

Software shaped around your exact process: quotes, approvals, inventory, bookings, or anything you run today on sheets.

04

Customer & Partner Portals

A secure login where your clients, dealers or students see orders, reports, invoices and documents in one place.

05

Admin Dashboards & Internal Tools

Clear dashboards with the numbers your team checks daily, plus tools to approve, assign and track work.

06

API Development & Integrations

Connect your software with Tally, payment gateways, CRMs, WhatsApp and other APIs so data flows without re-typing.

Pricing

Transparent packages. Fixed quotes.

Your final quote is fixed after a 20-minute call — no surprise bills.

MVP

₹1.25L
about 6 weeks
  • Core feature set for one main user type
  • Login, roles and basic admin
  • Responsive web app that works on phones
  • Cloud hosting set up in your name
  • Error tracking and backups
  • 30 days of free fixes after launch
Get this quote
Recommended

Product

₹5L
10–12 weeks
  • Multiple user types and permissions
  • Payments or subscription billing
  • Reports and dashboards
  • Email and WhatsApp notifications
  • Two to three third-party integrations
  • Staging and production environments
Get this quote

Platform

₹10L+
14–20 weeks
  • Multi-tenant architecture with custom branding per tenant
  • Deep integrations (ERP, Tally, CRM, banking APIs)
  • Audit logs and fine-grained access control
  • Background jobs and data pipelines
  • AI features where they add real value
  • Load testing and monitoring
Get this quote

Ongoing costs after launch

No surprises: here's everything you may pay every month, stated upfront.

With us

Support & hosting management from ₹15k/mo (optional)

See all ongoing plans
Paid to third parties, at cost, no markup

Cloud hosting ₹2k–20k/mo, depending on usage

  • —Cloud hosting and databases (AWS, Google Cloud, Render, Supabase or similar), billed to you at cost.
  • —Domain name: about ₹800–1,500 per year.
  • —Email, SMS and WhatsApp sending charges from the provider.
  • —Paid APIs or AI model usage (for example OpenAI or Anthropic), billed by the provider.
  • —Payment gateway fees per transaction.

Want a quick estimate for your exact project? Try the cost estimator.

Process

From first message to launch.

Clear stages, a live preview link every week, and payments tied to milestones you approve.

  1. Step 011 week

    Discovery and fixed quote

    We map your process, users and must-have features. You get a written scope, fixed quote and milestone plan.

  2. Step 021–2 weeks

    Design and data model

    Screens, user flows and the data structure behind them. You review a clickable prototype before we build.

  3. Step 033–16 weeks

    Build with weekly releases

    Working features go live on a preview link every week, so you can test with your team as we go.

  4. Step 041 week

    Launch and handover

    We move real data, train your team and hand over code, docs and all accounts. Free fixes for 30 days.

Technology

Tools we trust.

Next.jsReactTypeScriptGoPythonFastAPINode.jsPostgreSQLRedisDockerAWSSentry

Our promises

Working with us is low-risk.

Fixed quote

A clear, fixed price after a 20-minute call. No surprise bills.

Pay in milestones

Projects: 40% to start, 30% on design approval, 30% at launch.

You own everything

Code, domain, ad accounts, WhatsApp number and data — in your name.

Weekly previews

See real progress on a live link every week, not just status updates.

30 days of free fixes

Anything not working as agreed after launch, we fix at no cost.

Talk to the builder

No account managers. You speak with the engineers doing the work.

FAQ

Questions, answered.

How much does custom software cost?+

An MVP starts at ₹2.5L. A fuller Product build is about ₹5L. Multi-tenant platforms with deep integrations start at ₹10L. The main cost drivers are the number of user types, integrations, and how complex your rules are.

Should I build custom software or buy a ready-made tool?+

If a ready-made tool fits 90% of your needs, use it. We will tell you so. Custom software makes sense when your process is your edge, when you pay for many tools that don't talk to each other, or when you are building a product to sell.

How long will an MVP take?+

Most MVPs launch in about 6 weeks. A Product build takes 10–12 weeks, and a Platform 14–20 weeks. We release working features every week, so you can start testing early.

Who owns the code and the data?+

You do. The code repository, cloud account, domain and database are in your name from day one. We document the system so any competent team can take it over later.

Can the software grow as my business grows?+

Yes. We use proven tools like PostgreSQL and Go or Python, and design the data model carefully from the start. We have built multi-tenant platforms where many brands run on one codebase.

What are the running costs after launch?+

You pay hosting, database and any paid APIs directly at cost. For an early-stage product, this is often a few thousand rupees a month. We estimate it upfront and choose tools that keep it low.

What support do we get after launch?+

30 days of free fixes after launch. After that, most clients keep us on a monthly plan for new features and upkeep. You can also move it to your own team with our handover docs.

Let's scope your project.

One message is enough. You'll speak directly with the engineer who builds your system — and get a fixed quote, not a sales pitch.

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