Custom software · New Zealand
Custom software for what your business has outgrown.
When the spreadsheet, the plugins and the manual re-keying stop scaling, the fix isn’t another app subscription — it’s software built around how your business actually works. Tally Digital designs and builds it: custom applications, portals, dashboards and integrations, hand-coded by a senior engineer and yours to own.
In short
What custom software development actually is
Custom software development means building an application around your business instead of forcing your business to fit an off-the-shelf product. In practice that’s a customer or staff portal, an internal tool that replaces a spreadsheet, a quoting or job-management system, a dashboard that pulls your numbers into one place, or the integration that makes your existing tools finally talk to each other. It’s the software layer a website builder or a SaaS subscription can’t reach — and for a New Zealand SME it’s usually the difference between hiring another person to do manual work and having software do it.
What we build
The kind of software we build
Most projects are one of these, or a combination. If it involves logic, data and a workflow your business depends on, it’s in scope.
Customer & staff portals
Secure logins where customers self-serve — quotes, orders, documents, status — or where your team runs the work, instead of everything living in email and shared drives.
Internal tools & dashboards
The app that replaces the spreadsheet everyone’s scared to touch: real validation, a proper database, roles and permissions, and reporting that’s live instead of a Monday-morning export.
Quoting, ordering & job management
Quote-to-job-to-invoice in one flow, with pricing rules, stock and status your team and customers can actually see — wired to Xero so nobody re-keys a number.
API & system integrations
Connect the systems you already run — Xero, inventory or ERP, freight, your CRM, a booking engine — so data moves on its own instead of being copied between tabs by hand.
Custom web apps & SaaS
A full product: multi-tenant accounts, billing, an admin back-end, the lot — built on a modern stack you own, whether it’s an internal platform or something you sell.
Workflow automation & AI
The repetitive, rules-based work automated end to end — and, where it genuinely earns its place, practical AI built into the workflow rather than bolted on for the brochure.
In depth
How to think about a custom build
When off-the-shelf stops being the cheaper option
Off-the-shelf software is almost always the right first move — it’s cheap, fast and someone else maintains it. It stops being cheaper the moment you’re paying per-seat for ten tools that don’t talk, stacking plugins and workarounds to force a platform to do something it wasn’t built for, or employing people to move data between systems by hand. At that point the subscriptions plus the manual labour plus the lock-in cost more than a custom build would — and the custom build is an asset you own rather than a rent you pay forever. The honest test: if a person’s job is mostly re-typing what another system already knows, that’s software waiting to be written.
What a spreadsheet actually costs you at scale
A spreadsheet is a brilliant prototype and a terrible production system. At scale it costs you in ways that don’t show up on an invoice: the hours spent reconciling versions, the quote that went out with last month’s pricing, the order fat-fingered into the wrong column, the one person who understands the macros and can never take leave. Custom software turns those implicit costs into a system — one source of truth, validation that stops the bad data at the door, an audit trail, and access for the whole team without ten conflicting copies. The spreadsheet got you here; it’s usually the thing quietly capping how far you can grow.
Custom-built vs a platform or template — how to choose
For a plain marketing site or a standard need a well-supported platform already solves — a Shopify store, a Xero, a booking tool — use the platform, and we’ll tell you so rather than sell you a build. Go custom when you need real logic the platform can’t reach: a workflow specific to your business, a tight integration between systems, a portal, a pricing engine, an internal tool. Often the right answer is a mix — a platform for the standard parts and one custom piece that does the heavy lifting and connects everything. The wrong answer is bending an off-the-shelf product so far out of shape that you’re maintaining a fragile pile of plugins that breaks every time something updates.
The stack we build on, and why you own it
Everything is hand-coded on a modern, mainstream stack — Next.js and React, TypeScript, Postgres via Supabase, Sanity for content, Stripe for payments, Shopify where commerce fits. No proprietary page-builder, no locked platform, no code you can’t take elsewhere. At the end of a project you own the repository, the accounts and the infrastructure outright. That matters because the whole point of commissioning custom software is that it’s an asset on your side of the table — you should be able to hand it to any competent developer and have them pick it up, and with a clean modern codebase you can.
Who you actually work with
Not an account manager fronting an offshore team — Isaac Vicliph, a senior software engineer with a decade shipping software in financial services, designing and writing the code himself. You get one accountable person from the first scoping call to launch, direct contact throughout, and a clear plan you can actually read before anything is built. It’s a deliberately small operation: fewer projects, no junior hand-off, and the person who understands your system is the person who built it. NZ-based, priced in NZD, GST-registered.
How a project runs, and how it’s priced
We scope before we quote. The first step is a conversation about the actual problem — the process that’s slow, the data that won’t sync, the tool people work around — followed by a written plan: what gets built, which integrations, what you own at the end, and a fixed price for that scope. No hourly meter, no open-ended estimate that drifts. A focused internal tool is a smaller job than a multi-system platform, so rather than publish a number that’s wrong for your project, we give you a firm one once we understand it. Tell us the bottleneck and you’ll get a straight plan and a straight price back.
Reviewed July 2026 · written by Isaac Vicliph, Tally Digital
Questions
Frequently asked
What is custom software development?
Building an application around your business rather than making your business fit an off-the-shelf product. In practice that’s a portal, an internal tool, a quoting or job-management system, a dashboard, a web app, or an integration between the tools you already run — the software layer a website builder or a SaaS subscription can’t reach.
How much does custom software cost in New Zealand?
It depends entirely on scope — a single internal tool is a very different job from a multi-system platform, so a blanket price would be misleading. We scope your actual problem first, then give you a fixed price for that scope before any work starts: no hourly meter and no open-ended estimate. Tell us the bottleneck and you’ll get a firm number back.
Should I get custom software or use an off-the-shelf product?
Use off-the-shelf whenever it genuinely solves the need — it’s cheaper and faster, and we’ll say so. Go custom when you’re paying for tools that don’t talk, stacking plugins to force a platform to do something it wasn’t built for, or paying people to move data by hand. Often the best answer is a mix: a platform for the standard parts, one custom piece for the work that’s specific to you.
Do you work with businesses across New Zealand?
Yes. Tally Digital is a New Zealand software studio based in Hamilton and working with businesses across the country — remotely, and on-site when it helps. The process is the same wherever you are: a clear scope, direct contact with the engineer, and code you own.
Can you integrate custom software with Xero, our CRM or our other systems?
Yes — integrations are most of the work. Xero, inventory and ERP, freight, HubSpot and other CRMs, booking engines, payment providers: we wire your systems together so data flows on its own instead of being re-keyed between them.
Do I own the code?
Yes, outright. At the end of a project you own the repository, the accounts and the infrastructure. It’s built on a mainstream stack (Next.js, TypeScript, Postgres/Supabase) with no proprietary lock-in, so any competent developer can pick it up. The whole point of custom software is that it’s your asset.
How long does a custom software project take?
A focused internal tool can be a matter of weeks; a larger multi-system platform or a full SaaS product takes longer, because there’s real logic to design, build and test. We scope in stages so you see working software early and aren’t paying into a black box, and we give you an honest timeline up front rather than discovering it halfway.
Are you a software developer or a digital agency?
A senior software engineer. Custom software, web applications and integrations — not templates, not a monthly marketing retainer. You talk to the person who designs and writes the code, every time.
Tell me the process that’s eating your team’s time.
The manual quoting, the data re-keyed between systems, the tool everyone quietly hates — tell me the bottleneck and I’ll scope the smallest build that fixes it, then come back with a clear plan and a fixed price.