The verdict in three sentences
The freelancer wins on raw cost but concentrates all the risk in one person (bus factor of 1). The agency charges 20-40 % more but spreads that risk across a multidisciplinary team, with a warranty and service continuity. The dev shop on time-and-materials only pays off on large projects you steer internally, where you own the project management and quality yourself.
The three models, 2026 figures
The day rates below are 2026 orders of magnitude on the French market for a mid-level profile. They vary by region, stack and seniority.
| Criterion | Freelancer | Agency | Dev shop (T&M) |
|---|---|---|---|
| Mid-level day rate (2026) | EUR 350-600 | EUR 450-750 | EUR 500-900 |
| 40-day project cost | EUR 14,000-24,000 | EUR 18,000-30,000 | EUR 20,000-36,000 |
| Team | 1 person | 3-6 profiles | Dedicated resources |
| Bus factor | 1 (critical) | 3-6 (low) | 2-4 (medium) |
| Project management | You or them | Included (PM) | On you |
| Warranty / support | Rare, negotiated | 3-12 contractual months | Per framework |
| Kick-off lead time | 1-3 weeks | 2-4 weeks | 3-6 weeks |
| Code ownership | Contract it | Assigned on delivery | Assigned (T&M) |
Day rate alone misleads: an agency at EUR 600 delivering in 35 days with zero rework often costs less than a freelancer at EUR 450 who slips to 55 days with no warranty.
Choice grid by size and criticality
| Project profile | Indicative budget | Recommendation |
|---|---|---|
| Brochure site, landing, small fix | EUR 3,000-12,000 | Senior freelancer |
| E-commerce site, business app V1 | EUR 15,000-60,000 | Agency |
| Critical rebuild, structural IS | EUR 60,000-250,000 | Agency + dev shop backup |
| In-house team to scale temporarily | Monthly T&M | Dev shop |
| Confidential strategic project | On quote | Dedicated agency or in-house build |
Simple rule: the more critical the project is to your revenue, the less you should tolerate a bus factor of 1. A site driving 30 % of your sales should not depend on a vendor unreachable for three weeks in August.
Mini case study
Marc, managing director of a B2B distribution SME in Nantes, needs to rebuild his ordering portal (18,000 SKUs). A freelancer quotes EUR 450/day over an estimated 45 days, i.e. EUR 20,250. An agency quotes EUR 620/day over 38 days (PM included, 6-month warranty), i.e. EUR 23,560. The headline gap is EUR 3,310. But the freelancer works alone: a one-month unavailability mid-migration would cost Marc roughly EUR 40,000 in unprocessed orders. He picks the agency: the 16 % premium buys a continuity worth, to him, more than EUR 40,000 of avoided risk.
FAQ
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Is a freelancer always cheaper than an agency?
On day rate yes, on total cost no. Once you factor in project management, rework and the missing warranty, the real gap often falls below 15 %, sometimes to zero on projects that slip.
How do I neutralise a freelancer's bus factor?
Require a Git repo on your side from day 1, up-to-date documentation and, ideally, an identified backup freelancer. Without that, a single absence stalls the whole project.
T&M or fixed price for a first project?
Fixed price. T&M only makes sense if you have an internal product owner able to steer daily. Otherwise you pay for days without controlling the outcome.
Who owns the code at the end?
With an agency and a T&M dev shop, assignment is standard on delivery. With a freelancer, put it in writing: without a clause, IP ownership can stay ambiguous.
How much does maintenance cost after delivery?
Budget 15-20 % of the build cost per year in 2026 for decent support (fixes, security updates, small changes). Plan for it from the start.
Let's scope your project. Tell us the scope, your indicative budget and target timeline: we will say honestly whether a freelancer, our agency or a T&M team is the right call. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
