Custom software development for businesses that have outgrown spreadsheets
Off-the-shelf tools make you change how your business works. Custom software does the opposite. AppZex designs and builds web apps, mobile apps and internal business systems around your exact process, so your team works faster, your data lives in one place and you own the product.
What we build
Custom Software Development solutions
Internal business systems
Operations, inventory, order, job and workflow management systems built around your process.
Customer portals
Secure portals where your customers book, pay, track orders and download documents.
SaaS platforms
Multi-tenant software you can sell to other businesses on subscription, with billing built in.
Dashboards & reporting
Live dashboards that pull data from your systems so decisions are based on real numbers.
Integrations
Connect payment gateways, WhatsApp, accounting tools, ERPs and third-party APIs.
Legacy modernisation
Rebuild slow, outdated software on a modern, secure, cloud-hosted stack.
Deliverables
- Requirement workshop & written scope
- UI/UX design in Figma
- Web and/or mobile application
- Admin panel
- Cloud deployment (AWS or your provider)
- Full source code ownership
- Documentation & team training
- Post-launch support & maintenance
Ideal for
- SMEs replacing spreadsheets
- Startups building an MVP
- Enterprises needing an internal tool fast
- Agencies outsourcing development
Technology
- Next.js
- React
- Node.js
- TypeScript
- React Native
- Python
- MySQL
- PostgreSQL
- AWS
- OpenAI & Claude APIs
Process
How your project will run
- 1
Share your idea
Fill in the quote form or message us on WhatsApp. Tell us what you need, in plain words. No technical spec required.
- 2
Free consultation & fixed quote
We get on a call, map your process and send a written scope, timeline and fixed price, usually within 48 hours.
- 3
Design & build with weekly demos
You see real progress every week and give feedback as we go, so the final product is exactly what you expected.
- 4
Launch & ongoing support
We deploy, train your team and stay on for fixes, improvements and new features as your business grows.
How much does custom software development cost?
It depends on scope. A focused internal tool or MVP typically starts from a few thousand US dollars, while a full platform with web, mobile and integrations costs more. After a free consultation we send a fixed quote with milestones, so you know the total before we start.
How long does it take to build custom software?
Most MVPs and internal tools go live in 4 to 10 weeks. Larger platforms are delivered in phases, with a usable first version early and weekly demos throughout.
Do I own the source code?
Yes. For custom projects the source code and intellectual property are handed over to you once the project is paid for.
Do you work with international clients?
Yes. We work with clients around the world over video calls, WhatsApp, email and shared project boards, with flexible working hours that overlap with your time zone.
What happens after launch?
We offer support and maintenance plans covering bug fixes, security updates, hosting management and new features.
Related guides
How Much Does a CRM Cost? Subscription vs Custom-Built Compared
What a CRM really costs: subscription pricing tiers, hidden costs like implementation and integrations, custom CRM build costs, and a 5-year total cost comparison to help you choose.
Customer Portal Development: Features, Costs and How to Build One
Why businesses build customer portals, the features that matter, security basics, typical costs and timelines, and a step-by-step plan to launch a portal that reduces support work and keeps clients longer.
ERP for Small Business: Do You Really Need One (and What Should It Cost)?
A practical guide to ERP for small and mid-sized businesses: what an ERP actually does, signs you need one, off-the-shelf versus custom, module priorities, costs, and how to roll it out without disruption.
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Learn moreLet’s talk about your custom software development project
Tell us what you need. We reply within 24 hours with a clear plan, timeline and a fixed quote. No obligation.