ReverseBits

Custom software, built for how your business runs.

Spreadsheet running the business? We build the internal apps, system integrations, and legacy modernization that off-the-shelf platforms gave up on. Build-vs-buy math before we quote the build.

Custom software interface illustration

Clientsacross US · UK · EU · UAE

Decadeof custom software engineering

Top Rated Pluson Upwork (both founders)

$6M+saved for clients

Spreadsheets, finally retired

Legacy code nobody's scared of

Integrations that survive Monday morning

Spreadsheets, finally retired

Legacy code nobody's scared of

Integrations that survive Monday morning

Featured work

Custom software we've shipped.

Three engagements, three different shapes of custom software: purpose-built workflow inside an existing platform, vendor consolidation across five systems, infrastructure built when off-the-shelf wasn't enough. Metrics fill in once Dharmesh confirms the numbers.

See all case studies ->
E

ERP Integration

A purpose-built workflow inside the client's existing ERP whose vendor roadmap couldn't match their operations. Custom approval flows, role-based permissions, and an integration layer connecting four downstream systems with full audit trails, without replacing the platform of record.

Approval cycle hours saved per month
+[N]k
Reduction in manual data entry
[X]%
Downstream systems integrated
[Y]

847

Approvals/wk

4

Systems live

01 / 03

How custom software engagements begin

Four situations we recognize by the second sentence.

Most custom software engagements with us start in one of four shapes. If you see yourself below, we have a strong opinion about how the next twelve weeks go.

01

"We have a spreadsheet that runs the business and it's breaking."

The 200-column spreadsheet has six people stepping on each other and an ops lead who can't take a vacation. We don't rebuild the spreadsheet as software; that ships a worse spreadsheet. We map the actual workflow, find the 80% case, and ship something opinionated. 200 columns usually collapse to 14 fields and 3 statuses with real permissions. Django admin or Retool for the back-office surface, six to ten weeks to V1.

Typically ships

  • Workflow audit
  • Data model
  • Role-based permissions
  • Internal app

02

"Our internal tool was built by someone who left two years ago."

Nobody owns the code. Nobody trusts the deploys. Every feature request becomes an incident. The instinct is to rewrite, usually wrong. We audit what the tool does versus what it should do, where the brittle parts are, and what wrap-and-extend costs versus full rebuild. You get the call with the math, not the recommendation easiest to bill. Sometimes the answer is an API layer; sometimes a twelve-week rebuild on a stack your team can hire for.

Typically ships

  • Codebase audit
  • Risk surface
  • Rewrite-vs-extend call
  • Migration plan

03

"We need to connect five systems that don't talk to each other."

The CRM doesn't talk to billing, billing doesn't talk to inventory, every handoff is a person copying numbers. Zapier and Workato cover the simple cases. They hit a wall when retries, idempotency, and audit trails matter. We build event-driven integration layers with a real queue, Composio or custom connectors per system, and observability so you can see what failed and replay it. The point isn't that the systems sync; it's that you can prove they synced.

Typically ships

  • Systems audit
  • Event bus
  • Retry + replay layer
  • Integration dashboard

04

"Our ops team needs something Salesforce or SAP doesn't have."

You bought the platform. It does 60% of what you need. Customizations inside it are slow, brittle, and expensive, and the vendor's roadmap doesn't match yours. We don't replace your system of record; we build the missing 40% as a focused app that integrates cleanly. Salesforce stays the CRM, NetSuite stays the ERP. We own the workflow nobody else handles, then surface it back via embedded UI or API.

Typically ships

  • API integration
  • Custom workflow
  • Permissions model
  • Embedded UI option

Our process

Every layer of the build, shown end to end.

Six stages from scoping to scale. Click through to see what gets produced at each stage and the artifacts you walk away with.

Scope the workflow, lock the build-vs-buy call.

Workflow mapped against what off-the-shelf actually covers: Salesforce, NetSuite, Retool, the internal tools market. End of week one: a build-vs-buy matrix, the systems that need to integrate, a data model sketch, and a cost line per option.

Build-vs-buy matrixWorkflow auditData model sketchIntegration map

Sample artifact

Build-vs-buy matrix

APPROACH

COST

RISK

Build internalHighLow
Buy off-shelfLowMed
Wrap + extendMedLow

Visual mockup - real artifact replaces this in production

Sample artifact

Architecture sketch

Internal app
API layer
Mobile
App DB
Auth + RBAC
Event bus

Visual mockup - real artifact replaces this in production

The Tech Stack We Use

These are our super weapons that help us build a strong structure for your organization!

Tailwind CSS logo

Tailwind CSS

Java Script logo

Java Script

Kotlin logo

Kotlin

React logo

React

Swift logo

Swift

Flutter logo

Flutter

NestJS logo

NestJS

Django logo

Django

Pricing tiers

What it costs.

Three starting points. Real number after a 20-minute scoping call. These are the ranges we work in for custom software builds.

Starter

$25k

/ project

Internal app on existing data, Retool or Django Admin layer with role-based permissions. 6-10 weeks to V1.

  • Internal app / back-office layer
  • 1-2 system integrations via API
  • Role-based permissions
  • Postgres backend + audit logs
  • Monitoring + crash reporting
Choose Starter
Most popular

Growth

$60k

/ project

Full custom internal platform with integrations across 3-5 systems and workflow automation. Compliance evidence packaged.

  • Full custom application
  • 3-5 system integrations + event bus
  • Workflow automation
  • SSO + role-based access control
  • Compliance evidence packaged
  • 12-18 weeks to launch
Choose Growth

Custom

Talk

For legacy modernization, enterprise integration platforms, or regulated- industry rebuilds with ongoing partnership.

  • Legacy modernization or full rebuild
  • Enterprise integration platform
  • HIPAA / SOC2 Type II prep
  • Multi-region deployment
  • Dedicated team allocation
  • Long-term partnership engagement
Contact us

Listen to what our clients have to say about us…

These are the words that keep us going even an extra mile!

Just got email from the client thanking everyone! You guys have done fantastic job, Kudos for delivering this timely.
Karan Shah, CEO @ Dreambits
Karan Shah
Founder & CEO, Dreambits
London, UK
Just got email from the client thanking everyone! You guys have done fantastic job, Kudos for delivering this timely.
Undoubtedly, quality of work is amazing, considering the timelines the delivery has been great and no doubt the support has been consistent and great. We would prefer to have you as our partner going forward as well.
Biplob Barik, CEO @ Citrus Freight
Biplob Barik
CEO, Citrus Freight
Bangluru, India
Undoubtedly, quality of work is amazing, considering the timelines the delivery has been great and no doubt the support has been consistent and great. We would prefer to have you as our partner going forward as well.
Dharmesh has been an incredible asset to our team. His work is phenomenal, and I will definitely continue to work with him. He listens and acts on all feedback.
Valerie Feghali
Valerie Feghali
Creator, WellnessVault
California, USA
Dharmesh has been an incredible asset to our team. His work is phenomenal, and I will definitely continue to work with him. He listens and acts on all feedback.
It was a great experience working with reverseBits team. The team is very knowledgeable and helpful. Looking forward to work in future too
Arjun Shinojiya, Founder @ Tibicle
Arjun Shinojiya
Co-founder, Tibicle
Ahmedabad, India
It was a great experience working with reverseBits team. The team is very knowledgeable and helpful. Looking forward to work in future too
Tapan and his team at reverseBits did a fabulous job for the challenging job that we gave them. The learning curve was pretty steep, but under Tapan's leadership, the project was delivered successfully. Anyone looking to work with Tapan and the team at reverseBits, just go for it! They are great!
Avinash Sah, Creator of Oxyproxy, Founder @ IpMonk
Avinash Sah
Creator, OxyProxy
Mumbai, India
Tapan and his team at reverseBits did a fabulous job for the challenging job that we gave them. The learning curve was pretty steep, but under Tapan's leadership, the project was delivered successfully. Anyone looking to work with Tapan and the team at reverseBits, just go for it! They are great!

Frequently Asked Questions

The questions clients ask every time. Answered in full so you can make a confident decision.

Ask a Question ->

A Figma specialist designs with system thinking, not just visual craft. They use Variables and design tokens so colours and spacing update globally from one change. They build components with Auto Layout so designs behave like real responsive CSS. They configure Dev Mode so developers get annotated specs without needing to ask. A generic UI designer uses Figma as a drawing tool. A Figma specialist uses it as a product engineering tool that happens to produce beautiful output.

For ops leaders and CTOs mid-decision

Build it, buy it, or wrap it? Get the decision guide.

The first call every custom software engagement starts with. The framework includes three-year cost projections, vendor-lock scenarios, and the cost of customizing the off-the-shelf option until you've effectively built it twice.

  • ->When buying off-the-shelf wins, with specific criteria
  • ->When custom build pays for itself within 18 months
  • ->When wrap-and-extend beats both
  • ->One-page decision tree you can run in 30 minutes

One email, the PDF attached. No drip sequence, no sales follow-up.

TODO - Genuine PDF resource to be authored before going live

PDF - 6 pages

Build it, buy it, or wrap it?

The Custom Software Decision Guide - 2026

Three ways to work with reverseBits

Pick the path that matches where you are.

Different buyers need different first steps. No push to a sales call before you're ready.

Soft - just exploring

Get the build-vs-buy decision guide

A 6-page PDF on the first call every custom software engagement starts with: buy, build, or wrap-and-extend, with three-year cost projections.

Download the guide

Mid - ready to explore

Book a 20-min custom software scoping call

Tell us the workflow that's breaking. Six-question qualifier first so we use the time well.

Book a scoping call

Now - ready to start

Start a project

Share your brief or system map. Proposal back within one business day, including a named partner.

Send us your brief