Updated September 8, 2026. Facts about StatusBird are as published on statusbird.io on that date. Third-party products are named to identify them only.
Custom software development runs through six phases: discovery, UX design, development, QA, launch, and ongoing support. The cost is a function of three things you control: how many distinct workflows the software must handle, how many outside systems it must integrate with, and how much of the work is genuinely new rather than assembled from existing services. Everything else in a quote is a multiplier on those three.
StatusBird is a software company that built its own product from scratch and now runs it. We do not sell custom development, which makes this a guide with no quote attached to it.
What are the steps in custom software development?
| Phase | What happens | What you should receive | What sets the duration |
|---|---|---|---|
| 1. Discovery | The firm learns your business, the users, and the job the software must do; scope is written down | A scope document listing workflows in and out, integrations, and success criteria | How clearly you can describe the job before the first meeting |
| 2. UX design | Screens and flows are sketched, reviewed with real users, and revised | Clickable wireframes or a prototype you have tested with two or three users | Number of distinct screens and roles |
| 3. Development | The software is built, in vertical slices that each complete one workflow | Working software you can log into every week or two, plus repository access | Workflows, integrations, and how much is new versus assembled |
| 4. QA | Testing against the scope document: functional, edge cases, security basics, performance under expected load | A test report listing what was checked and what was found | Integrations and the number of ways data can be wrong |
| 5. Launch | Deployment, data migration, monitoring and alerts turned on, users trained | A runbook: how to deploy, how to roll back, who is paged when it fails | Whether there is existing data to migrate |
| 6. Support | Bug fixes, dependency updates, small changes, and someone watching for outages | A written support agreement with a response time | Ongoing; budget it as a percentage of the build each year |
Phases 2 through 4 overlap in any competent shop. What you should insist on is receiving working software on a regular cadence from the start of development, not a single delivery at the end. A firm that cannot show you a running slice within the first few weeks is building in the dark.
How long does custom software take to build?
Duration follows scope, not calendar ambition. The useful way to estimate is to count, then multiply:
- Count workflows. A workflow is one thing a user completes end to end: "create an order," "approve a timesheet," "send an alert." Each is a unit of design, build and test.
- Count integrations. Each outside system (a payment processor, an accounting package, a shipping carrier, a login provider) adds authentication, error handling, and a failure mode to test. Integrations routinely take longer than the screens around them.
- Count roles. Each user role with different permissions multiplies the screens that must be designed and tested.
- Count data migrations. Moving existing records from a spreadsheet or an old system is its own project with its own surprises.
Ask the firm to estimate in those units and to show you the arithmetic. A quote that is a single number with no breakdown cannot be checked and cannot be reduced.
What drives the cost of custom software?
- Scope. Workflows, integrations and roles, as above. This is the only driver that is fully in your hands, and the one most quotes bury.
- Novelty. Assembling managed services (a hosted database, a payments API, an email API, a hosted authentication provider) is faster and cheaper than building equivalents. Ask which parts of your project will be assembled and which built.
- Rate and location. Hourly rates vary widely by country and by firm size. Compare rates only after normalizing scope, otherwise the cheaper rate often buys more hours.
- Quality bar. Automated tests, accessibility, security review and documentation all cost hours and all reduce the cost of the support phase. Decide which you are buying rather than discovering later which were skipped.
- Change. Scope changes after development starts are the most common reason a project overruns. The contract should price changes explicitly.
- Recurring costs. Hosting, third-party services, licenses and monitoring continue after launch. They belong in the estimate as a monthly line, not as a footnote.
A worked estimate you can adapt
The figures below are illustrative inputs, not market data; replace them with the numbers in your quotes. Suppose an internal tool with 5 workflows, 2 integrations and 2 roles, a firm that estimates 60 hours per workflow including design and testing, 40 hours per integration, and 20 hours per additional role, at a blended rate of $100 per hour.
| Line | Arithmetic | Hours |
|---|---|---|
| Discovery | Fixed | 40 |
| Workflows | 5 × 60 | 300 |
| Integrations | 2 × 40 | 80 |
| Additional role | 1 × 20 | 20 |
| Launch and migration | Fixed | 40 |
| Total build | 480 | |
| Build cost | 480 × $100 | $48,000 |
| Support, year one | Assume 15% of build | $7,200 |
| Hosting and services, year one | Assume $150 per month | $1,800 |
| Year-one total | $57,000 |
Two things the table makes visible. First, the recurring lines are a meaningful share of the first year and are missing from most quotes. Second, removing one workflow saves more than any negotiation on rate. Scope is the lever.
When should you not build custom software?
When an existing product does the job for a subscription that is less than the support line alone. Most small business needs (customer records, payments, scheduling, uptime monitoring) are served by subscription software that is maintained by someone else and already tested by thousands of users. StatusBird itself exists because store owners do not want to build and maintain a monitoring system to watch their vendors; a $29 subscription replaces a project.
Build custom when the workflow is genuinely specific to your business, when it is the thing that differentiates you, or when the off-the-shelf options would each cover half of it and need to be stitched together anyway.
Frequently asked questions
How much does custom software development cost?
It depends on scope: the number of workflows, integrations and user roles, multiplied by the firm's hours per unit and its hourly rate, plus recurring hosting and support. Ask every firm to quote in those units so the estimates can be compared and reduced.
What are the phases of custom software development?
Discovery, UX design, development, QA, launch, and ongoing support. Design, development and QA overlap in practice, and you should receive working software throughout development rather than one delivery at the end.
How long does it take to build custom software?
As long as the scope requires. Estimate by counting workflows, integrations, roles and data migrations, then ask the firm for hours per unit. A project with a handful of workflows and a couple of integrations is measured in months; every added integration or role extends it.
What should be included in a custom software quote?
An itemized scope with hours per workflow and integration, the hourly or fixed rate, what is excluded, who owns the code, how changes are priced, a support agreement with a response time, and the monthly recurring cost of hosting and third-party services.
Is it cheaper to build custom software or buy a subscription?
A subscription is almost always cheaper when one exists that does the job, because the vendor spreads development and support across many customers. Build custom only for workflows that are specific to your business or that differentiate it.
About the author: StatusBird is an independent software company in Phoenix, Arizona that builds and operates a monitoring service for e-commerce stores. It checks 84 third-party services every 2 minutes and alerts store owners by SMS, email, Slack, Teams and Discord when one goes down. Everything in this article comes from building and running that product; StatusBird does not sell custom software development.