---
title: "Software agency vs development subscription: which suits you? | Fluff Software"
description: "Fixed quotes and change orders versus one flat fee and a queue. How a software agency compares with a product team subscription."
url: https://www.fluff.software/compare/agency/
updated: 2026-10-23
publisher: Fluff Software
---

# A traditional agency vs the subscription.

Fixed quotes and change orders, or one flat fee and a queue that absorbs change.

By **Scott Gulliver**, founder Updated 23 October 2026

_Image: A team discussing plans around a table with laptops_

## Short answer

A traditional agency quotes a fixed scope, builds it, and quotes again when anything changes. The subscription charges one flat monthly fee and absorbs change through a queue. Fixed scopes suit projects with a fixed budget and a stable spec; the subscription suits live products where priorities move every week.

## How the agency model works

You describe what you want. The agency scopes it, estimates the hours, adds contingency and quotes a price. Once work starts, anything outside the scope becomes a change request with its own quote. When the project ends, so does the team’s attention, unless you buy a support retainer measured in hours.

That model made sense when building was slow and expensive. With AI tools, the build itself has become much faster. What hasn’t changed is the cost of scoping every idea, negotiating every change and starting again for the next project.

## How the subscription differs

|  | A traditional agency | Fluff, on subscription |
|---|---|---|
| Getting started | Weeks of scoping and quotes | A short onboarding session, usually within a week or two |
| How you pay | A fixed quote, then change orders | One flat monthly fee |
| Changing your mind | Another quote | Add it to the queue |
| Senior judgment | Billed by the day | Built into every release |
| After launch | A support retainer measured in hours | The same queue keeps moving |
| When you need more | Start a new project | Add a track |

## When a fixed-scope project is the right answer

Sometimes you need one number up front: a grant-funded build, a procurement process, a board that wants certainty. We still do that. It’s called a [System Build](https://www.fluff.software/ways-to-work/system-build/), and it’s usually preceded by a [Discovery Sprint](https://www.fluff.software/ways-to-work/discovery-sprint/) so the scope is worth fixing.

## Why we moved away from it ourselves

Changes that used to take hours now take minutes. Pricing by the hour undersold what clients get, and fixed-price MVPs started to look expensive next to something knocked up overnight in an AI app builder, even though making it production software is a different job. [The full story is here](https://www.fluff.software/guides/why-we-stopped-charging-by-the-hour/).

## Sources

1. [Akoode, software developers in the UK: hiring guide and costs 2026 (agency rates)](https://www.akoode.com/blog/software-developers-in-the-uk)
2. [8ration, hire software developers in the UK 2026 guide (agency rates)](https://www.8ration.com/blogs/hire-software-developers-uk/)

## Questions.

What do UK software agencies charge?

Published guides put established UK agencies at roughly £75 to £150 an hour, with fixed-price projects quoted from those rates plus contingency. Changes outside the agreed scope are usually quoted separately.

What if we have something big, like a whole new product?

We break it into a run of smaller releases so you see progress every week. If it needs more thinking first, we suggest a planning day or a short discovery sprint.

Can we move between plans?

You can move up whenever you need more pace. If things quieten down, talk to us and we’ll find a sensible way to adjust.

---

Fluff Software, a senior product team embedded in your business. Book a call: https://www.fluff.software/contact/ or email contact@fluff.software. Agents: see https://www.fluff.software/llms.txt and https://www.fluff.software/AGENTS.md.