Providing digital solutions since 2015 · Clients in India, Belgium, UAE & Qatar
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Software and websites for businesses in India and worldwide
MaricoHDFC LifeDaspan ForexTeevra ImpexRoyal ShippAthlonBiounikemGS Infra Power Solution

What we build

Custom software development services

One team for every kind of business software. Tell us the problem and we'll recommend the right build, whether that's a system for your operations, a portal for your customers or a website that sells.

Custom Business Software

Software built for your exact workflow: operations, approvals, billing, reporting and integrations. You're on this page.

What we can build ↓

ERP Development

One system for inventory, purchase, sales, accounts and production, designed for manufacturers, traders and distributors.

ERP software development →

CRM Development

Track leads, follow-ups, deals and customers in a CRM that fits your sales process, with WhatsApp and email built in.

Ask about a custom CRM →

Web App Development

Portals, dashboards, booking systems and SaaS products that run in the browser on any device.

Web application development →

Website Development

Fast, SEO-ready business websites that turn visitors into enquiries. Our most proven service.

WordPress development
Website development company →

E-commerce Development

Online stores with payments, shipping and inventory connected, built to sell from day one.

Shopify development
Ask about an online store →

Mobile App Development

Android and iOS apps for your customers or your field team, connected to your existing systems.

Mobile app development company →

3D Website Development

Immersive 3D websites and product viewers that let buyers explore products online, as we built for La Decor.

3D website development →

The basics

What is custom software development?

Custom software development is designing and building software for one business's specific processes, instead of buying a ready-made product that everyone uses. It fits your workflow, connects to the tools you already have, and can grow as you grow. You pay once to build it, and it becomes your own asset.

It's the right choice when spreadsheets and generic apps start slowing your team down, when you need systems that talk to each other, or when your process is what makes you different. If a ready-made product already fits, we'll tell you, and that includes our own SMRT products.

At a glance

ServiceCustom software development
We buildBusiness software, ERP, CRM, web apps, websites, e-commerce, mobile apps, 3D websites
ForSMEs and enterprises: trading, logistics, manufacturing, export, finance, education
Based inMumbai, India, serving clients in India and worldwide
EngagementFixed-price project, dedicated team or monthly support
Custom softwareReady-made software
FitBuilt around your exact processYou adapt your process to the product
CostHigher upfront, no per-user licence feesLower upfront, monthly fees per user
Time to startWeeks to monthsDays
IntegrationsConnects to any system you useLimited to what the vendor supports
OwnershipYou own the software and dataYou rent access; the vendor controls changes
Best whenYour process is unique or you've outgrown generic toolsYour needs are standard and you need it now

What custom software fixes

Problems we solve for businesses

Too many spreadsheets

Replace Excel with one system

Move orders, stock, billing and reports out of scattered sheets into one secure system with the right access for each person.

Manual approvals

Automate workflows

Approvals, reminders, invoices and reports that run on their own, with AI where it saves real time.

No live picture

Dashboards & reports

See sales, stock, cash and team performance in real time, on desktop or mobile.

Customers call for updates

Customer & partner portals

Let clients place orders, track shipments and download documents themselves.

Outgrown your software

Rebuild or modernise

Move an old desktop system to the web or cloud without losing your data or your team's way of working.

Proof

We don't just build software. We run our own.

The SMRT suite is business software we designed, built and support ourselves. That product experience goes into every client project:

  • We know what breaks when real teams use software every day
  • Security, backups, user roles and audit trails are standard
  • We plan for updates and support from day one, not as an afterthought
See SMRT products →
SMRT Forex SMRT Inventory SMRT Warehouse

Our work

Software and websites we've built

Jewellery wholesale · Qatar & UAE

Harshad Prime

Onlinestore
2countries

A WooCommerce store for a jewellery tools, machinery, display and packaging wholesaler in Doha and Dubai.

E-commerceWordPressWooCommerce
Visit live site ↗
Diamond exporter · India

Arjiv Exports

Customdesign
GlobalB2B buyers

A custom website presenting an RJC-certified natural diamond manufacturer and exporter to global buyers.

Website
Read case study →
Interior design · India

La Decor

3Danimations
Ongoingmaintenance

An immersive website with multiple 3D animations and interactive elements, maintained by us.

3D websiteMaintenance
Read case study →
Investment banking · India

Unaprime

WordPressElementor
3 citiesMumbai · Bengaluru · Delhi

Corporate website for an investment bank: sectors, team, transactions and insights.

WebsiteWordPress
Visit live site ↗

See all 22 client websites →

How we work

How we build your software

1
Discover

Free consultation

We map your process, users, goals and budget.

2
Plan

Scope & prototype

A written scope, fixed quote and a clickable prototype before any code.

3
Launch

Test, train & go live

QA, data migration and team training.

4
Support

Maintain & improve

Monthly support, updates and new features.

Custom Software Development Company in Mumbai process at Over & All Tech: 1. Free consultation, 2. Scope & prototype, 3. Test, train & go live, 4. Maintain & improve
How we build your software: 4 steps, explained by Over & All Tech.

Pricing

How pricing works

Every project is different, so we do not publish a single price. After a free 30-minute call we send a fixed quote with the scope, milestones and timeline in writing.

Fixed quote, no surprises

Scope, deliverables and price are agreed in writing before any work starts.

Pay by milestone

You pay as each agreed stage is delivered and approved, not everything up front.

What changes the price

The number of pages or features, integrations, content and design work, and the support you need after launch.

Get a Free Project Estimate

Technology

Technologies we use

Frontend

HTML/CSS/JSBootstrap

Backend

PHP

Data & cloud

MySQL

Outside India?

Offshore software development from India, done openly

We've delivered for clients in Belgium and across India. You get the cost advantage of an Indian team, with the communication and paperwork you'd expect at home.

Time-zone overlapDaily working hours overlap with Europe
English, in writingWritten scope, weekly reports and shared boards
NDA & IPNDA before we talk; IP transfers to you on payment
Pay in your currency

Client feedback

What our clients say

“

Talented and bright-minded team of engineers. Their on-time service is what makes them the best.

Salman ShaikhHR, Marico India
“

A really nice team of young, enthusiastic people who are always ready to solve your problem on time.

Saeed ShaikhDirector, Sahulat International Consultancy
“

Great team and responsive. A very nice experience building a website and a relationship with Over & All Tech.

AkhileshFounder, Spartans Multi Services

Watch

Watch software we have built

Real demos from our YouTube channel.
Complete CRM and Billing with Inventory Management System
SMRT Forex and Accounting ERP: demo
Medical Training: Suturing Practice in Virtual Reality on Meta Quest 3

Google reviews

What clients say about us on Google

Rated 4.7 out of 5 from 39 reviews on our Google Business Profile.

I am very happy and satisfied with this software. It was all beyond my expectations. Y'all completed it before due period. Thank-you so much😊

Deepa YelveGoogle review

If you are looking for website development or custom software solutions in Mumbai, this is a great company to work with. Their pricing is reasonable and the quality of work is impressive.

DesiGameVerseGoogle review

Company’s seamless development process allows one to create software faster, better and cost efficiently. Strong team collaboration and communication with clients!

Saba KaziGoogle review

Read all reviews on Google ↗

FAQs

Custom software development: common questions

How much does custom software development cost in India?

After a free call we give you a fixed quote with milestones, so the price doesn't change unless the scope does.

How long does it take to build custom software?

We deliver in milestones, so your team can start using the most important features early while the rest is built.

Should I buy ready-made software or build custom?

Buy ready-made if your process is standard and you need it quickly. Build custom if your process is unique, you need several systems connected, or per-user licence fees are adding up. In the free call we'll tell you honestly which fits, even if it's an existing product.

Do you work with clients outside India?

Yes. We work with clients in Europe and across India, with overlapping working hours, written scopes, weekly updates and an NDA on request.

Are you a software development company in Mumbai?

Yes. Over & All Tech is a software development company based in Mumbai, Maharashtra, founded in 2015. We meet Mumbai clients in person when useful and work with everyone else online.

Can you work on software someone else built?

Yes. We can review, fix, maintain or extend existing software after a short code review to understand how it's built.

Do you provide support after launch?

Yes. We fix issues found after launch and offer ongoing maintenance for updates, security, backups and small changes, so your software keeps running smoothly.

Get in touch

One step away from your idea to product

Not sure what you need yet? That's fine. Tell us about your idea and we'll help you work out the best way to build, launch or grow it.

Schedule a Free Call

Tell us when suits you and we'll call you for a free 30-minute chat. We'll listen, answer your questions and suggest next steps.

Send a Message

Prefer to write? Tell us about your idea. A short note is enough.

+ Add project details (optional)

WhatsApp or Call

Want a quick answer? Message or call us directly.

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