Custom costing software development
Appfront builds custom calculation software that helps you work out cost prices and quotes based on materials, labour, machine hours, surcharges and margins. With price breaks, variants and pre- and post-calculation, you gain full control over your profitability, and with a single click you can turn an accepted calculation into a quote. Tailored to your own calculation structure and industry standards, not a one-size-fits-all package.
What is calculation software?
Calculation software works out the cost of a product, project or job and derives a quoted price from it. It brings together all cost types, such as materials, labour, machine hours and other items, and adds surcharges and margins. With price breaks and variants, you can easily calculate different specifications or quantities, so you can produce a well-founded price quickly and consistently.
A standard package assumes a single way of calculating. In practice, every industry has its own calculation structures and standards: construction works with line items and quantities, manufacturing with operations and machine hours, printing with print runs and pricing tiers. That logic rarely fits entirely into a fixed format. With custom software, we capture exactly your calculation method, price lists and margin rules, without you having to adapt your way of working to the software.
A quote configurator (CPQ) seems related, but works the other way round: there, the customer puts a product together themselves and sees a price straight away. Calculation software is internally focused: your estimator calculates the actual cost price and uses it to determine the quote. We build both; see also our quote configurator or our broader custom software. Everything is built according to the OWASP guidelines for secure software.
Cost prices down to the penny
Calculate materials, labour, machine hours and other costs within a single model. Surcharges and margins are applied automatically, so every calculation is consistent and traceable, with no more scattered spreadsheets.
Price breaks and variants
Effortlessly work through different quantities, print runs or specifications using price breaks and variants. A single calculation instantly produces multiple pricing scenarios, so you can quickly present options to your customer.
Pre- and post-calculation
Compare what you budgeted with what a job actually cost. You can see per project whether the margin held up, and sharpen your standards and margins for the next calculation.
Our development process for calculation software
We work to a proven methodology that removes uncertainty early and delivers reliable software. From a thorough analysis of your calculation model, standards and price lists through to go-live and ongoing management, every step is focused on calculation software your team understands and trusts.
We pin down your costing methodology: which cost categories, standards, tiers and margin rules you apply, and which integrations with your ERP or accounting system are needed. We use your existing Excel models as the starting point.
We design the calculation model, the data structure for price lists and standards, and a clear interface so your calculators can work quickly and accurately.
We build the software with automated tests on the calculation logic, so that the results can be demonstrably verified. You see working versions along the way and help steer the project.
A controlled go-live with validated price lists and standards, followed by ongoing management, seasonal rate updates and further development.
What calculation software delivers in practice
We tailor every calculation software solution specifically to your cost types, standards and connected systems. Below are the features we most often deliver for businesses that calculate cost prices and quotes to measure.
Cost price calculation
Build up a calculation from materials, labour, machine hours and other costs. The software automatically applies surcharges, mark-ups and margins, so every price is well-founded and traceable, from a simple job to a complex project.
Price lists & standards
Manage material prices, hourly rates, machine rates and standard times centrally. Update rates in one go and they flow straight through all calculations, with version control so that older quotes keep their original prices.
Quote calculation with variants
Calculate multiple specifications, quantities or scenarios at once using tiered pricing and variants. Your client gets clear options, and you see the margin for each variant, so you never quote below your minimum.
Pre- and post-calculation
Set the estimated calculation against the hours and costs actually spent. You can see per project whether the margin held up, where it went wrong, and how to sharpen your standards and margins for future jobs.
Convert to quote
Turn an approved calculation into a polished quote with one click, including breakdown, terms and your corporate identity. The accepted quote can flow automatically into your ERP or accounting system as an order or invoice.
Reporting & permissions
Insight into margins, hit rates and average cost per product group or client. With role-based permissions, you decide who can see purchase prices and margins, so sensitive figures reach only the right people.
Typical use cases in practice
Calculation software works very differently by sector, as every industry uses its own calculation structures and standards. We regularly see a number of recurring patterns, and for each we have a working setup that accounts for cost types, tiered pricing and the right margin and standards logic.
Construction & building services
Contractors, installers and finishing firms that cost each project using line items, quantities and labour norms. The software calculates materials, labour and subcontracting, applies tiers and surcharges, and produces a substantiated quote straight away. It connects to your project planning via our API integrations.
Metal & manufacturing industry
Suppliers and machine builders who cost based on operations, machine hours, material types and setup times. The software calculates per batch or per piece, accounts for tiers and remnant material, and connects to your ERP system for up-to-date purchase prices.
Printing & print
Print shops and print-on-demand businesses that calculate by print run, format, paper type, finishing and number of colours. Tiered pricing and variant calculation are essential here: one enquiry immediately produces several price scenarios the client can compare.
Landscaping & project-based services
Landscapers, gardeners and project-based service providers who build quotes from materials, labour hours, machine use and travel time. With pre- and post-calculation you can see afterwards whether the estimate was right and adjust your standards per project type.
Test your idea first: a working prototype in 1 day
With OneDayBuild, we turn your idea into something tangible in one day for €1,150, so you can see whether further development is worth the investment. Decide to go ahead with the full build? Then we credit the full cost.
Explore OneDayBuild →Technology we use
We build costing software on a modern web stack that calculates quickly and reliably, even for large estimates. The software runs in the browser, integrates with your ERP and accounting system, and is set up so your own team can manage the solution or have it further developed.
For coachbuilders who want to calculate a bodywork build for a client, there is our app for bodywork build calculation.
If you want to know whether the pre-calculation was accurate, with hours and materials recorded at the machine, see our app for post-calculation in machining.
If your measurements come from an on-site survey, see our measuring app for carpentry.
If you also want to keep control of the budget during execution once the numbers are calculated, read on about project budgeting software for construction.
Why choose Appfront for your calculation software?
Appfront builds custom software for a wide range of businesses in the Netherlands. We always start with a thorough analysis of your existing calculation model and processes. Costing software must not only be technically sound, but above all make your estimators' work faster and more reliable.
On every project we write clear documentation, so that your own team, or a future supplier, can understand and manage the software. No black box: just transparent calculation logic and clear agreements on maintenance and further development.
You work with a dedicated point of contact who understands both the technical and the functional side. This keeps communication short, prevents misunderstandings and speeds up decisions when choices need to be made during development.
Also see our broader services around custom software, a custom ERP system, a customer-facing quote configurator and web app development.
- Experience with custom calculation and costing models
- Existing Excel models converted into reliable software
- Experienced with price tiers, variants, and pre- and post-calculation
- Integrations with ERP and accounting systems such as Exact Online
- Secure by default in line with OWASP ASVS, with permissions per user
- Automated tests on the calculation logic, so that results are demonstrably correct
- Clear documentation your team can read and manage
- A fixed point of contact, no account managers passed around
- Ongoing maintenance and proactive further development
- A way of working aligned with your existing IT landscape
Security and privacy in costing software
Calculations and quotes contain commercially sensitive information, such as purchase prices, standard times and margins: figures from which a competitor could reconstruct your cost price. That is why Appfront builds to the OWASP ASVS. This includes role-based access, so that only the right people see margins; encryption in transit and at rest; secrets held in a secure vault; and audit logs for every change to prices and standards.
Quotes also contain personal data of your contacts. We process this in accordance with the GDPR, with data minimisation and a documented record of processing activities. We secure integrations with your ERP or accounting system using scoped tokens and encrypted connections, so the data flow between calculation software and surrounding systems is demonstrably secure.
More about our approach to security: our information security policy and vulnerability disclosure policy. A frequently requested integration is our Exact Online integration.
- GDPR-compliant data processing and data minimisation
- Encryption in transit (TLS 1.2+) and at rest
- Role-based access and least-privilege principles
- Audit logs with traceable data flows
- Version control on price lists and standards
- Monitoring and alerting for anomalies
- Secrets management in line with best practice
- Documentation of data flows for your record of processing activities
Frequently asked questions about costing software
Answers to the questions we are asked most often about custom calculation software.
Calculation software is software you use to calculate the cost price of a product, project or job and derive a quote from it. It brings together materials, labour, machine hours and other costs, adds surcharges and margins, and works with pricing tiers and variants. Custom calculation software fits your own calculation structure and industry standards, and can compare pre- and post-calculation so you can see whether a job was profitable. From the calculation, you convert to a quote with one click.
A quote configurator (CPQ) is customer-facing: the customer assembles a product or service themselves and immediately sees a price. Costing software is internal: your estimator or production planner calculates the actual cost price based on materials, labour, machine hours, surcharges and margins, and so determines the quoted price. The two complement each other, and internal costing often feeds the pricing logic of a configurator. We build both; see our page on the quote configurator for the customer-facing variant.
Standard packages assume a single way of costing. In practice, every industry, and often every company, has its own costing structures, standards, tiers and surcharge rules that don't fit a fixed format. With custom software, we capture your exact costing method, price lists and margin rules, without you having to adapt your way of working to the software. Custom software also connects seamlessly to your existing ERP, accounting or project planning systems, so you don't have to enter data twice.
Yes. We integrate costing software with your existing systems via their API. This could be an ERP system for items, stock and orders, or an accounting package such as Exact Online for passing quotes and invoices through. That way you always work with current purchase prices and standards, and you don't need to re-enter an accepted quote. We work with a modern web stack (TypeScript, React, Node.js or Python) and build the integrations according to the OWASP guidelines.
The investment depends on the complexity of your costing methodology, the number of cost categories and tiers, the variants you need and the number of integrations with other systems. Pre- and post-calculation, reporting and ongoing maintenance also play a part. We first map out your costing model and then prepare a clear quote, with no surprises afterwards.
Yes. Calculations and quotes contain sensitive business information such as purchase prices, margins and customer details. Appfront builds to the OWASP ASVS standard: role-based access, encryption in transit and at rest, secrets held in a secure vault, and audit logs of changes to prices and standards. We process customers' personal data in accordance with the GDPR, with data minimisation and a documented record of processing activities. This way you stay in control of who can see which margins and calculations.
Yes. Many businesses currently calculate in extensive Excel files that are error-prone and difficult to share. We analyse your existing spreadsheets or tool, document the formulas, standards and scales, and rebuild them as reliable software with central price lists, version control and user-specific permissions. The familiar logic is preserved, while duplicate entry, copy errors and version clutter disappear.
Calculation software suits any company that calculates a cost price and quote per job. We see it often in construction and installation, the metal and manufacturing industry, printing, landscaping and groundskeeping, and project-based service providers. Each has its own calculation structures: construction works with line items and quantities, manufacturing with machine hours and operations, printing with print runs and pricing tiers. That is precisely why custom software often fits better than a standard package.
Ready to build your costing software?
Tell us how you currently cost and which cost categories, tiers and margins you work with. We're happy to think along with you about your costing model, integrations and the step to a quote. A no-obligation first conversation will quickly give you a clear picture of what custom costing software could do for you.