The two models, stated plainly
Per-project means you define a deliverable, agree a price, and pay for that thing. Scope is fixed. Cost is knowable in advance. Every new need starts a new negotiation.
Retainer means you pay monthly for capacity rather than a specific deliverable. You submit requests to a queue and get them back on a fixed turnaround. Scope is flexible; total spend is predictable.
Neither is inherently better. They fail in opposite directions: per-project wastes time on scoping overhead, retainers waste money when the queue is empty.
The break-even math
The calculation is more straightforward than it looks. Take our numbers as the worked example.
| Monthly design need | Per-project cost | Retainer cost | Cheaper option |
|---|---|---|---|
| One small asset | ~$650 | $2,900 | Per-project |
| One landing page | $3,200 | $2,900 | Roughly even |
| Two pages + assets | ~$4,500 | $2,900 | Retainer |
| Ongoing, unpredictable | $6,000+ | $2,900 | Retainer |
The break-even sits at roughly one substantial deliverable per month. Below that, packages are cheaper. Above it, the retainer is cheaper and gets faster, because the studio already knows your brand and stops re-learning it every project.
The hidden costs of per-project
The table above compares invoices. It does not capture the costs that never appear on one:
- Scoping time. Every project needs a brief, a quote, a negotiation, and a contract. Two to four hours of your time per project, every time.
- Re-briefing. If you use different people, you re-explain the brand from zero on each engagement. If you use the same studio, you still pay a context-recovery tax after a gap.
- Waiting for availability. Good studios book two to four weeks out. Retainer clients hold a permanent slot; project clients rejoin the queue every time.
- Small things going undone. Nobody scopes a $400 project for a single social template, so it just never gets made. Quality drifts by omission.
The real argument for a retainer is usually not price. It is that small design work actually gets done instead of being permanently deferred.
How to choose
Choose per-project when: you have one clearly defined thing to ship; design needs are genuinely occasional; budget is approved per initiative rather than as a recurring line; or you are testing a new studio before committing.
Choose a retainer when: you ship marketing campaigns continuously; you have a product that needs regular interface work; you find yourself skipping design work because scoping it is a hassle; or you want a fixed monthly number for planning.
A practical middle path: start with a project. Buy a brand identity or a landing page first. See how the working relationship actually feels. If you find yourself with a second and third request within six weeks, move to the retainer — that pattern is the signal.
Both models are on our pricing page with real numbers, and the retainer can be paused any month.