Service 01 / 08
Custom Software Development
Arrowbin is a custom software development company for teams that have outgrown off-the-shelf tools. We build software that fits the way you work: cutting out manual steps, connecting the systems you already use, and giving you a platform that grows as you do.
(01)Overview
What is Custom Software Development?
Custom software development means designing and building software around your exact business: your workflows, your data, your users. Arrowbin builds web platforms, internal tools and system integrations for startups and growing businesses, and a usable first version usually takes 6–12 weeks, with you owning all the code.
- 01100%Source code ownership
- 026–12Weeks to a usable first version
- 030Per-seat license fees
Is this for you?
If your team works around its tools, we should talk.
- Teams outgrowing spreadsheets, manual steps or disconnected tools
- Businesses with a workflow no off-the-shelf product fits
- Companies that need their systems to talk to each other
- Founders building a platform they want to own outright
What you get
- 01
Built for your workflow
Software designed around your processes, not a generic template, so adoption is fast and friction is low.
- 02
Scalable architecture
Clean, modular codebases and cloud-native infrastructure that grow from your first user to your millionth.
- 03
Own your IP
You own 100% of the source code, documentation, and infrastructure. No lock-in, no surprises.
- 04
Secure by design
Authentication, role-based access, encryption and audit logging baked in from day one.
(02)The difference
One order, two ways
Today
By hand
00:00
Hi! 10 boxes of A4 paper please, delivered to our main office. Thanks
- Read the WhatsApp message2m
- Retype it into the order sheet4m
- Check stock in another sheet3m
- Make the invoice in Word6m
- Email the invoice3m
- Add it to the courier list4m
- Tell accounts it's paid2m
One order done in 29 minutes, one typo caught late.
With your platform
Built for you
0.0s
Order #1042
Processing10 × A4 paper box · Main office · via WhatsApp
- Order received0.2s
- Stock reserved0.6s
- Invoice created & emailed1.3s
- Courier booked, label printed1.9s
- Accounts updated2.4s
Orders cleared
0
0 orders done while the first was still being typed up.
- By hand
- 73h
- per week
- With a platform
- 1h
- exceptions only
That's about 2 full-time people back on work that grows the business.
Step timings are typical for a small team handling orders by hand. In discovery we time your real process, then build around it.
(03)Deliverables
What we build for you
Six kinds of software we build most often. Many products combine two or three of them.
- +24%1.2k98%
01
Web platforms & dashboards
The live view of your business: numbers, trends and alerts in one place instead of five spreadsheets.
- #1042Approved#1043Pending#1044Approved#1045Review
02
Internal & admin tools
Back-office apps your team actually enjoys: approvals, records, search and bulk actions.
03
Workflow automation
Rules that move work forward on their own: routing, reminders, documents and hand-offs.
04
API & system integrations
Your CRM, ERP, payments and shipping talking to each other, reliably, with no re-typing.
- C:\LEGACY>_
05
Legacy modernization
Old systems rebuilt on a modern stack, migrated in stages so the business never stops.
- ADAdminOPOpsCLClientPTPartner
06
Enterprise & B2B portals
Secure portals for clients, partners and staff, with role-based access and audit trails.
(04)Architecture
Built in layers, built to last
Every system we ship follows the same sturdy shape, so it is easy to change, easy to scale and easy for any good engineer to pick up.
- Documented, so you are never dependent on us
- Tested at every layer before it ships
- Deployed on infrastructure you own
Layer 01
Interface
What your users touch: fast, accessible web apps and dashboards.
- React
- Next.js
- TypeScript
Layer 02
Logic & APIs
Your business rules, workflows and integrations with other systems.
- Node.js
- Python
- REST & GraphQL
Layer 03
Data
A clean data model you own, with backups and reporting built in.
- PostgreSQL
- Redis
Layer 04
Infrastructure
Cloud hosting that scales, with automated deploys and monitoring.
- AWS
- Docker
- CI/CD
Security in every layer: auth · roles · encryption · audit logs
(05)Process
How we deliver
Two-week sprints, each ending with a working demo you can click through and comment on.
- 1
Step 011–2 weeks
Discovery
We map your workflows and constraints, then turn them into a clear scope you can sign off on.
- 2
Step 021–2 weeks
Architecture
We design the data model and the stack the system will run on.
- 3
Step 032-week sprints
Agile build
We ship in short sprints, with a working demo and a feedback loop at the end of each one.
- 4
Step 04Ongoing
Launch & support
We deploy, watch it in production, and keep improving after go-live.
(06)Build vs buy
Off-the-shelf or built for you?
Off-the-shelf is the right call more often than agencies admit. Here is how we help clients decide, honestly.
Fit to your workflow
Off-the-shelf
You adapt your process to the tool
Custom-builtWins
The software follows how you already work
Cost over time
Off-the-shelf
Per-seat fees that grow with every hire
Custom-builtWins
One build cost, then modest upkeep
Ownership
Off-the-shelf
Rented; you leave with an export file
Custom-builtWins
You own the code, data and infrastructure
Integrations
Off-the-shelf
Only what the vendor chose to support
Custom-builtWins
Connects to any system that has an API
Speed to start
Off-the-shelfWins
Same day, if it fits
Custom-built
A usable first version in 6–12 weeks
Competitive edge
Off-the-shelf
Your competitors use the same tool
Custom-builtWins
Your way of working becomes an advantage
Not sure which side you are on? That is exactly what our free discovery call is for. If an off-the-shelf tool fits, we will tell you, and point you to it.
(07)Selected work
Built by us, live today
(08)How we work together
Three ways to start
Start with a scoped build of the tool you need most. Once your team relies on it, move to a team or a care plan.
- Most popular
Project
A scoped build of one system, with a fixed estimate.
Best for internal tools and client portals.
- We map the workflow before quoting
- Fixed estimate for the first version
- A working demo every two weeks
- For growing products
Product team
A team on your platform's roadmap, planned month by month.
Best when the system keeps growing with the business.
- New modules and integrations as needed
- The people who built version one
- Monthly plan, a release every sprint
- After launch
Care plan
We keep the system and its integrations working after launch.
Best for tools your team uses every day.
- Fixes when a connected API changes
- Security and dependency updates
- A health report every month
(09)Guides
Read before you build
- Engineering13 min read
Is Your Vibe-Coded App Production Ready? A 2026 Checklist
Built your app with Lovable, Bolt or Cursor? Use this engineer's checklist to find the security and payment gaps, then decide whether to fix or rebuild.
Read the guide→ - Guides14 min read
How Much Does Custom Software Development Cost in 2026?
Custom software development costs in 2026: price ranges by project type, what drives the number, regional rates, hidden costs, and how to spend smart.
Read the guide→ - Guides13 min read
Custom Software vs Off-the-Shelf: When Building Pays Off
Custom software vs off the shelf for small firms: a 12-point comparison, a five-year cost model with real seat prices, the hybrid route and a checklist.
Read the guide→
Most custom software projects run from $8,000 for a focused tool to $75,000+ for a full platform. What moves the number is scope, the integrations involved and how complex the logic gets. After a short discovery call we give you a fixed estimate, so there are no surprises later.
A minimum viable version usually takes 6–12 weeks. We deliver larger platforms in phases, so you get something usable early and we refine the rest based on real feedback.
Yes. You get full ownership of the source code, the documentation and the infrastructure. There's no vendor lock-in.
Usually, yes. We integrate with CRMs, ERPs, accounting, payment and shipping tools through their APIs, and we can import data from spreadsheets and older databases. If a system has no API, we'll find the safest workaround during discovery.
Buy when an existing product fits your workflow well and per-seat costs stay reasonable. Build when your process is a competitive advantage, when you're stitching several tools together, or when licence fees keep growing. We'll tell you which on the discovery call, even if the answer is to buy.
We monitor the system, fix issues fast and keep improving it through a monthly care plan. You can also take it in-house at any time: everything is documented and you own all of it.
(11)Pairs well with
Often combined with
- Service 05UI/UX DesignWe design the screens and flows first, so the build matches how your team works day to day.
- Service 07Cloud, DevOps & HostingAutomated deploys and monitoring for the system, in place before your team starts relying on it.
- Service 06AI AutomationAdd AI to the workflows the system already runs, like reading documents or sorting requests.
(12)Your move
Let's build
something loud
Tell us which workflow costs your team the most time. We'll come back with a straight answer on scope and cost, usually within a day.


