Apps
Build a focused internal app, a customer-facing product, or a multi-tenant system you can license or franchise. Goldstone also licenses software it has already built, where using the existing engine is faster and less expensive than starting over.
Custom software is a different kind of engagement from a website build, and it’s the hardest thing to pre-price honestly — no two apps want the same things. So the configurator below is a starting point rather than a quote: it gets you to a real number and a real range before you talk to anyone, and we confirm the specifics once we understand the job.
What’s above it is the proof we can build it.
Two buying paths run through this page. A custom app is written for you from scratch and can be assigned to you as the agreement defines. Licensed Goldstone software is a platform we already built and already run — faster and materially cheaper than commissioning the same thing again, licensed to you rather than sold. Not every app is licensed software, and which one you are is settled before the build. How ownership and licensing work, and Goldstone Intelligence explains the shared platform a licensed build stands on.
Shipped software
Every one of these is deployed and in use. Most run behind a login because they carry real deals and real operations.
Deal underwriting
Deal underwriting
Underwrites a minor-subdivide deal end to end — split scenarios against cost and exit assumptions — and turns the result into an investor-ready deck. It's the tool we run our own acquisitions through.
Comps & valuation
Pulls vacant-land comparable sales, computes $/acre statistics, and exports comps that feed straight into the Exit Plan Calculators. Search by county, city, ZIP, or a radius around a map pin.
Multifamily underwriting
Multifamily underwriting
Takes the land underwriting model into multifamily: active and sold 2–20 unit properties across Arizona and Tennessee, running through a shared listing adapter so new data sources plug in without a rewrite.
Parcel research
Parcel research
Finds and qualifies parcels, works out highest-and-best use, and turns a rough sketch into a plan — the research step before a deal is worth underwriting at all.
Operations
Operations
Logs activities against value tiers — $10K, $1K, $10–99, and $0 per hour — so you can see where the week actually went instead of where you assume it went. Built because running several businesses made the question urgent.
Build it
Start from the base and add what the business actually needs. The total and the timeline update as you go — no form to fill in first.
Custom software is the hardest thing to pre-price honestly, and anyone who tells you otherwise hasn't built much of it. Treat every number here as a starting point, not a quote. Two apps that sound identical in a sentence can differ by a factor of three once you know what they actually have to do. What this gets you is a realistic range and a shared vocabulary before we talk — not a figure we'd hold you to, and not one we'd hold ourselves to either.
Included base
One core workflow built properly — the screens it needs, a real data model behind it, hosted and responsive. The starting point for software that does one job well.
Each additional distinct view beyond the core workflow — a list, a detail page, a settings panel.
+$1,000
per screen
Sign-in, roles, and per-user data separation, so people only see what's theirs.
Identity providers typically charge above a free monthly active user threshold.
+$3,000
A back office to see what's happening — records, activity, and numbers you can act on.
+$3,500
Each external system the app reads from or writes to — a CRM, a calendar, an accounting tool, a data source.
Some APIs charge for access or meter requests. Which ones, and how much, depends entirely on the services involved.
+$1,500
per integration
Users upload documents, photos, or exports, and the app stores and serves them properly.
Storage and bandwidth bill on usage. Small for documents, meaningful for video or imagery at volume.
+$1,500
Take one-time payments or run recurring billing, with the plumbing to handle failures and cancellations.
The payment processor takes a percentage of every transaction.
+$3,500
Anything where the app has to interpret rather than just store — summarizing, extracting, classifying, drafting. Custom quote, since it depends entirely on the job.
Billed per request by the model provider, so it scales with how much the feature is actually used.
$5,000+
Run the same app for multiple clients under their own branding and their own separated data. Custom quote — this reshapes the whole data model, so it's much cheaper decided up front than retrofitted.
$10,000+
Moves you to the front of the queue and compresses the timeline.
+25%
The operating layer above multi-tenancy: territory and location administration, franchisee controls, per-location branding and domains, cross-organization reporting, and royalty or billing hooks. Multi-tenant architecture is what makes this possible; it is not the same thing, and it is priced separately.
$15,000+
Your apps estimate
Estimated — your final quote is confirmed after we talk.
Estimated delivery
4–8 weeks
Focused build
Pricing more than one service? Add each and send them together.
Or send just this oneMost serious custom applications land between $20,000 and $60,000. Ongoing service is optional and currently starts at $500/month.
Past the configurator
The configurator handles builds we can scope from a list of modules. Above that, the work stops being a bigger version of the same thing — it's a different engagement, and it starts with figuring out what's actually being built rather than picking parts.
Systems built to be resold
Software a business sells on to franchisees or members — multi-tenant from the start, with the accounts, permissions, and billing that implies.
Multi-location and multi-site
One system, many locations or brands, sharing a spine but not a database row. Different problem from one site done well.
A full presence, not a website
When the site is one piece of a larger push and the photography, video, and campaign have to hold together with it.
Priced per engagement, after we understand the work — typically starting around $25,000, and scoped in writing before anything begins.
One thing we'll say early rather than late: a build is limited by the assets going into it. If the photography and video aren't there yet, we'll tell you that before the design, not after — it's the difference between a site that looks expensive and one that looks like it wanted to.
After launch
Every build can end at handover — your data, content and domain are yours either way. Most don't end there, because software that nobody tends stops working long before it looks broken.
/mo
Everything stays up, patched, backed up, and current.
A build that's finished and needs to stay healthy.
Software that isn’t maintained doesn’t stay still, it degrades. You can handle this yourself — we’ll hand over everything and show you how. Most people would rather not.
Month to month. Cancel any time.
/mo
We keep building. You get hours every month and someone who knows the system.
A business that keeps changing, and a system that has to change with it.
Most work doesn’t end at launch. Under Care those changes become quotes; here they’re just the next thing we do.
Hours don’t roll over. A plan that banks them turns into a debt we’re both managing instead of work that gets done.
Month to month. Cancel any time.
/mo
The build stays current and the site actively works on getting found.
A business where one won job pays for the year.
Plenty of people now ask an assistant who to call and take the answer. Getting named there is a different job from ranking, and neither is something anyone can promise you.
One genuinely useful improvement a week, rather than a batch of thin ones. We favour deliberate publishing over mass-generated pages because usefulness and clarity are what hold up over time — but no publishing cadence guarantees a ranking or a citation.
We don’t buy links, automate reviews, or spin up pages with the town name swapped. Those tactics trade durable authority for short-term volume, and they carry real search-quality risk.
Month to month. Cancel any time.
from/mo
We function as your product and systems team, without you hiring one.
A business where software is now part of how the money is made.
Scoped per engagement. Included hours and response times are defined in the agreement.
Plans start after launch and are quoted with the build, so the monthly number is never a surprise later. Third-party costs — hosting that scales, message fees, model usage — are billed through at cost plus a small markup and itemized.
Goldstone-owned software may also carry a separate platform license where applicable. See how build, licence and service are priced .
Because a fixed price on an unknown scope is either padded or a fight later, and usually both. The modules are priced from work we have actually done, so the number is grounded — but custom software is where estimates go wrong, because the hard part is almost always something nobody mentioned in the first conversation. Two apps described identically in a sentence can differ threefold once you know what they really have to do. What we do instead is scope the first phase properly, price that firmly, and build it. By the end we both understand the shape of the thing and the rest can be quoted with real confidence. If someone gives you a firm number for a custom app before asking hard questions, they have either built your exact app before or they are guessing.
Ask three things before anything else. Will the person who scopes it still be involved when it is built, or does it pass to whoever is free that week? What exactly do you own at the end, and what is licensed to you? And will they tell you when software is not the answer? Published pricing is a fourth signal. A firm that will not put a number in public rarely puts one in writing early either.
Scope usually does change partway through a software build, and that is not a failure — you learn things once real software is in front of real users. Goldstone quotes changes as they come up rather than absorbing them silently and slowing down, or springing an invoice at the end. You will always know what a change costs before we build it, and you can always say no.
Yes, for a custom build. You get the repository, the data, and the right to take all of it to another developer. That's different from our licensed apps, which stay ours and are licensed to you — a distinction worth knowing before you commit rather than after. If you want a custom build that starts from one of our existing tools, we'll tell you plainly which parts you'd own and which stay licensed.
Sometimes, and we will look before answering. An unfinished codebase can be cheaper to finish or more expensive than starting over, and which one it is depends on decisions made before we arrived. We will read it and give you an honest answer, including if that answer is that your money is better spent rebuilding.
Hosting starts around $250/month for a typical app, covering the server, the database, and monitoring. On top of that, some features bill on usage: AI features per request, file storage by volume, payment processing as a percentage, and some third-party APIs by call. The configurator flags every module that carries running costs, and we quote the realistic monthly figure before you commit — not after launch.