Custom software
Web apps, internal tools, customer portals and the backends behind them, built around how your business actually works.
Custom CRMs →- Web apps
- APIs
- Dashboards
- Integrations
- Automation
Now booking new projects
Technology studio
We build the systems your business runs on.
Calstrat is a technology studio. We design, build and run custom software, iPhone and Android apps, and websites for companies that need it to work, and we stay on to keep it working.
Custom softwareMobile appsiPhone & AndroidWeb appsSaaS productsAutomationPayments & e-commerceAPIs & integrationsAdmin dashboardsBack officesSupport systemsWhite-label platformsCloud & hostingWebsitesFractional CTO
01Services
Everything it takesto ship and run it.
Software, apps and the systems behind them, from one in-house team: first idea to production and every update after. No hand-offs, no finger-pointing when something breaks.
iPhone & Android apps
Native-quality mobile apps from one codebase, built, published to both app stores and kept up to date.
- iOS
- Android
- Push notifications
- Maps & GPS
Websites & care plans
Fast, sharp sites that win trust, plus monthly care so they stay fast, secure and current.
Technology management
We run the servers, updates, backups and vendors so you can run the business.
- Hosting
- Security updates
- Backups
- Vendor management
Technology consulting
Straight answers on the decisions that matter, before you spend the money.
Full capabilities
If it runs on code, we build it. Here's the range our in-house developers cover.
01
Software & SaaS
- Web applications
- SaaS products
- Customer portals
- Internal tools
- Admin dashboards
- Back offices & CRMs
02
Mobile apps
- iPhone apps
- Android apps
- Cross-platform builds
- Push notifications
- In-app payments
- App Store & Google Play publishing
03
Backend & APIs
- API development
- Third-party integrations
- Databases
- User accounts & login
- Real-time features
- Multi-tier permissions
04
Automation
- Chat & support assistants
- Workflow automation
- Document processing
- Data pipelines
- Scheduled jobs
- Reporting automation
05
Payments & e-commerce
- Online stores
- Subscription billing
- Payment processing
- Wallets & balances
- Payouts
- Invoicing
06
Cloud & DevOps
- Cloud hosting
- Deployment pipelines
- Server management
- Migrations & upgrades
- Monitoring & backups
- Security hardening
07
Design & product
- UI & UX design
- Prototypes
- Design systems
- User research
- Product strategy
- Launch planning
08
Quality & modernization
- Testing & QA
- Code audits
- Performance tuning
- Legacy rebuilds
- Technical documentation
- Ongoing support
Why custom
Stop renting software thatdoesn't fit your business.
Off-the-shelf tools charge per seat, per month, forever — and still make you work around their limits. Custom software fits how you actually operate, connects to the systems you already use, and belongs to you from day one.
| Off-the-shelf | Built by Calstrat | |
|---|---|---|
| Fits your workflow | You adapt to the tool | The tool adapts to you |
| Cost structure | Per seat, per month, compounding forever | One build + a modest monthly care plan |
| Your data | Stored on their servers, their rules | Stored on your infrastructure, your rules |
| Integrations | Only what they support (or charge extra for) | Connects to anything your business needs |
| Ownership | License revoked if you stop paying | You own the code, the data, everything |
If a $30/month app does everything you need, use it. We're for businesses that have outgrown that.
02Selected work
Built, shipped,in production.
Our clients run their businesses on these systems, so we keep their names private. Happy to walk through any of them on a call.
Relay
A customer support portal for tier 2 and tier 3 escalations.
- The problem
- Escalated support cases were hard to follow. Customers had no easy way to see where their issue stood or answer the questions the support team needed resolved.
- What we built
- A simple, self-serve portal where customers open a ticket, track its status in real time and reply to requests from the team, plus the queue the tier 2 and 3 specialists work from.
- The result
- Customers stay informed at every step without chasing anyone, and specialists get the answers they need faster.
Ledger
The back office for a multi-tier distributor network.
- The problem
- A distributor-based business needed one system to run every tier: the distributors, the accounts beneath them and the money moving between them.
- What we built
- A complete back office with account creation, tiered permissions, payments, performance analytics, full records and transaction history, each tier seeing exactly what it should.
- The result
- Distributors run and grow their own networks of accounts from one place, with the numbers in front of them in real time.
Signal
A marketing site redesign for a payments company.
- The problem
- The product had outgrown its website. It needed to explain how customers move their money and a new referral program, at a glance.
- What we built
- A new hero, an animated network graphic showing money moving, live stats and a referral rewards section, tuned for phones first.
- Our role
- Design, front-end build and ongoing site care.
Atlas
A self-running web platform that launches new branded sites in minutes.
- The problem
- The business wanted to grow through distributors without growing headcount, and without a new build every time it expanded.
- What we built
- An automated platform that runs day and night with very little staff work, on a distributor model, plus a launcher that spins up a fully branded site for a new partner in minutes.
- The result
- It keeps operating while the team is asleep or away, and expansion is a few clicks instead of a new project.
03Process
How wework.
Clear scope, fixed milestones, working software early. You always know what's done, what's next and what it costs.
01
Understand first
We start with the real problem and the real constraints, not a template. A short scoping call, direct questions, then a written plan with a fixed quote.
02
Build what matters
We ship in milestones you can click through, and cut anything that doesn't move the business forward.
03
Launch and own it
We handle hosting, launch and the first weeks of real use, and stay accountable for how it runs in the real world, not just what we hand over.
04
Stay for the long run
Care and support plans keep everything updated, secure and improving after launch, from the same people who built it.
04About
Disciplinebuilds freedom.
Operators, not just developers
We build and run companies of our own, so we advise from experience. We've shipped real products and kept them running.
In-house developers
Every project is built by our own in-house developers, never outsourced or passed to freelancers. You work directly with the people building your system, with no hand-offs.
Built to last
Plain, well-documented technology you can maintain, choosing tools for the next five years, not this year's trend. We also invest in a small number of companies we believe in.
How every project is staffed
01
Strategy & research
We study your business, competitors and users before anything is designed.
02
Content
Researched, SEO-ready writing for every page, in English and Spanish.
03
Design
Custom visuals, graphics and interfaces. No templates.
04
Engineering
Custom code, integrations, apps and automation.
05
Quality assurance
Every page, form and feature tested on desktop and mobile before launch.
06
Project management
Written scope, milestones, due dates and weekly updates, with one point of contact.
Specialized roles on every build, coordinated under one roof, so nothing falls through the cracks.
05FAQ
Goodquestions.
What does a project cost?
Custom software and app projects typically start at $5K; websites start lower. Every project gets a fixed written quote after a short scoping call, so there are no surprises.
Do you build iPhone and Android apps?
Yes. We build one app that runs natively on both iPhone and Android, publish it to the App Store and Google Play under your account, and keep it updated as new phone versions come out.
How long does it take?
Most websites launch in a few weeks. Software depends on scope. We break it into milestones so you see working pieces early instead of waiting months for a big reveal.
Do you support it after launch?
Yes. Monthly care and support plans cover hosting, updates, security patches, backups and small improvements, handled by the team that built it.
Can you take over an existing system?
Often, yes. We start with a review of what you have, then upgrade, stabilize or rebuild only what needs it.
What do you need from me to start?
Just the form below: what you're trying to do, a rough budget and timeline. We'll come back with questions and a time to talk.
Why not just use an existing app?
If a $30/month app does everything you need, you should. Off-the-shelf tools work well for standard, common tasks. But if you are building workarounds in spreadsheets, paying for features you do not use, or hitting integration limits that cost you time every week — you are spending more than you think. Custom software fits your workflow exactly, connects to your existing tools, has no per-seat fees, and belongs to you. Over three to five years, it often costs less than a platform subscription — and you own it. Read the full comparison →
06Start a project
Tell us whatyou're building.
A few details and we'll come back with questions, a time to talk, and an honest read on what it will take.
Prefer to pick a time? Book a call