Ask five vendors what your app will cost and you will get five numbers that differ by 10x. That is not because the work is mysterious. It is because the quotes are describing five different things, and nobody explains which thing you are buying.
What actually drives the price
Three factors set most of the budget. First, the number of user types: an app for customers only is one product, but customers plus admins plus drivers plus managers is four interconnected products. Second, integrations: every payment gateway, ERP hook or logistics API adds real engineering and real testing. Third, the platforms: web only, or web plus iOS plus Android.
Everything else, design polish, reporting depth, notification systems, moves the number at the edges. User types, integrations and platforms move it at the core.
Realistic ranges
A focused MVP with an API, one web portal and one mobile app is typically an 8 to 14 week build for a small senior team. A multi-tenant platform with several user roles and apps is a multi-quarter engagement. Anyone quoting a complex multi-role platform at simple-MVP prices is planning to recover the difference later, in change requests or in quality.
Red flags in a cheap quote
A quote produced within a day of your first call means nobody scoped anything. No written specification attached to the number means the number is fiction. No mention of who owns the code means you might not. And a price with no post-launch support window means the real total is the quote plus whatever the first month of production reveals.
The cheapest reliable option is almost never the cheapest quote. It is the quote that removes surprises.
Building something in this space? We've probably shipped it before.
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