Comparison
Percelia vs. an accessibility agency
In short
A good agency delivers a deep manual expert audit, but is slower, pricier and harder to repeat. Percelia is human-in-the-loop too, but AI does around 80 % of the work: faster, more predictable in cost, repeatable and with ongoing monitoring. For very complex one-off cases an agency can still make sense.
The comparison is not „human versus machine“. Percelia deliberately brings in human judgment. The difference is how much of it AI prepares, and how often the whole thing can be repeated without a new project.
Agency vs. Percelia at a glance
| Agency / consultancy | Percelia | |
|---|---|---|
| Approach | A manual expert audit | AI does around 80 %, a human reviews the critical cases and signs off |
| Speed | Weeks | Days |
| Cost | High, quoted per project | Predictable and lower |
| Repeatability | Each re-audit is a new project | Repeatable at the push of a button |
| Monitoring | Rarely continuous | Continuous monitoring plus a CI gate against regressions |
| Output | A report, fixes depending on scope | A report plus concrete code fixes and VPAT / EN 301 549 |
| Traceability | Varies by provider | Every finding traceable: element, screenshot, criterion, confidence |
| Scaling across many pages | Labour-intensive and expensive | Template-based and efficient |
What a good agency delivers
Experienced auditors, often with hands-on screen-reader practice, spot nuance, advise on UX and accompany complex rebuilds. For one-off, highly bespoke projects that is valuable. The price is weeks of lead time and costs that recur with every repeat.
How Percelia meets the same bar faster
Percelia assesses the page automatically across six analysis layers, maps every finding to a WCAG and EN 301 549 criterion and proposes code fixes. The ambiguous cases go to human review, and a human signs off. The result is the same defensible conformance statement, only in days rather than weeks and repeatable at any time. What it costs is in the guide on audit costs.
When an agency still makes sense
For very complex, custom-built applications, for native mobile apps, or where deep UX consulting is needed, a specialised agency plays to its strengths. The two are not mutually exclusive: Percelia works with agencies and takes on the repeatable, broadly scaling part of the assessment for them.
Frequently asked questions
- Is a tool audit as good as an agency audit?
- Percelia is not a pure tool but human-in-the-loop: AI does the bulk, a human reviews the critical cases and signs off. The difference from an agency is not „without a human“ but „accelerated with AI“.
- Which costs less, an agency or Percelia?
- Usually Percelia, especially for repeats and across multiple pages, because AI handles most of the effort and each re-audit is not a new project.
- Does Percelia fully replace an agency?
- For most websites Percelia covers the whole need. For very complex one-off cases or deep UX consulting an agency can complement it, and we work with such partners.
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