How to Compare Software Development Quotes

Two software quotes can show the same amount and still describe different work. The right way to compare them starts with scope, not price: what will be delivered, how will it be accepted, which milestones is payment tied to, and who keeps the source code when the work is done? This guide explains how to put the quotes for a software project side by side.

Write the scope first

Write the scope yourself before asking for quotes: user types, core screens or functions, integrations (payments, maps, email and so on), platforms (web, iOS, Android) and what is out of scope. If each bidder writes the scope, each quote prices different work and comparison becomes impossible. On Tenderely you can build the project scope by chatting with an AI assistant, then generate a draft contract from that scope.

Fixed price or time and materials?

With fixed price the amount is known upfront, but so is the scope; every change means a new quote. With time and materials you pay for the hours spent; it is open to change but the total is uncertain. Fixed price usually suits small projects with a clear scope; time and materials suits projects that need discovery and will take shape along the way. Whichever you choose, the quote should say how change requests are priced.

Tie payment to milestones

Paying everything upfront and paying everything at the end both leave one side exposed. Split the work into measurable milestones (design sign-off, first working build, test release, go-live) and tie each payment to a delivery. On Tenderely the milestone amount is placed in escrow and released when the work is delivered and approved, so the provider knows the money is there and the client knows nothing is paid for work they have not approved.

Acceptance criteria: what does “done” mean?

For each milestone, write down up front what counts as working: which scenarios will be tested, which devices and browsers it must run on, what performance is expected, and how many days the acceptance test lasts. A delivery without acceptance criteria turns into a long argument between “done” and “not done yet”.

Source code, accounts and maintenance

Four items should be explicit in the quote: ownership and delivery of the source code, whose name the server and app store accounts are opened in, the cost of third-party licences, and the maintenance and bug-fix period after go-live. Accounts opened in the provider’s name are the biggest obstacle when you later want to change suppliers.

A table for putting quotes side by side

Fill in the same rows for every quote: scope (does it match your scope document exactly?), pricing model, milestones and payment plan, total duration, acceptance criteria, source code and account ownership, maintenance period and cost, change request pricing, the team (who will actually work on it?) and references. An empty row is a question you need to ask. The lowest total is often the quote that fills the fewest rows.

Common mistakes

1) Letting the bidder write the scope: every quote prices different work. 2) Paying everything upfront: if contact breaks down halfway, you are left with neither code nor money. 3) Not writing acceptance criteria: delivery turns into a dispute. 4) Letting accounts be opened in the provider’s name: changing suppliers takes months. 5) Not discussing maintenance: the first bug after go-live starts a new negotiation.

Frequently Asked Questions