What actually determines the cost of custom software?
Five companies quoted the same 'app' at five drastically different prices—this gap is not driven by greed, but by fundamental differences in the assumed scope of work. Here are the actual factors that determine the cost.
A familiar scenario: a business occasional owner requests proposals for an 'app' from five different companies and receives quotes that vary by up to 500%, leading them to conclude the market is completely chaotic. The reality is that these proposals were never evaluating the same requirements—each company simply assumed a different scope based on a single word. Understanding the underlying cost factors empowers you to compare tangible deliverables rather than just comparing blind numbers.
The volume of logic, not the number of screens
Developing a screen that simply displays a table might take a single day. Conversely, building a screen embedded with complex business logic—such as commissions that vary by item and region, tiered pricing models, or conflicting discounts that must be applied in a strict hierarchy—can take weeks. Always ask yourself: how many hidden decision rules are operating behind this screen? A system customized to accurately mirror your business is inherently rule-dense; its true cost lies in engineering that logic, not just designing the interface.
Integrations: the line item everyone forgets
Every integration with a third-party system—such as e-invoicing portals, payment gateways, shipping couriers, or WhatsApp—is essentially a mini-project within the larger scope. It requires deciphering external API documentation, engineering robust error-handling for failure scenarios, and conducting continuous regression testing whenever the third party updates their system. Just three such integrations can drastically alter a project's cost, which is precisely why we discuss them in our very first meeting, not the last.
User experience, two languages, and direction
An interface utilized twenty times a day cannot rely on the premise of 'any design that gets the job done'. Interfaces supporting both Arabic and English with flawless RTL/LTR transitions, data tables optimized for compact POS screens, and intuitive forms that prevent critical user errors—these are not luxuries. They constitute the critical difference between a system your team actually adopts and one that is eventually abandoned in favor of spreadsheets. These requirements must be scoped from day one; retrofitting them later is always significantly more expensive.
After launch: ownership and maintenance
Ask a single question that explains half the price disparity: who owns the source code? Some proposals appear cheaper because you are essentially renting the software—it functions only as long as you pay the subscription, and terminating the contract means starting from scratch. Furthermore, scrutinize the maintenance agreement: what exactly is covered monthly? What is the guaranteed fault-response time (SLA)? Who handles minor adjustments? The lifecycle of a robust software system does not end at deployment; an offer that ignores post-launch support is an incomplete proposal.
Bottom line: never compare price tags without first comparing the underlying scopes of work. Always demand a formal, written proposal detailing the specific screens, business rules, third-party integrations, intellectual property rights, and maintenance terms. Once you do, you will find the market to be far less chaotic than it seems. We are always prepared to provide this level of detail for you, completely free of charge.