Ranked · 3 of 4 assessed
Ordered by Agency List ScoreDigital product development with mobile apps and web solutions
Custom mobile app development for diverse industries and innovative solutions
Bespoke mobile app development and digital solutions in London
Also in United Kingdom · 31 not ranked here
30 have not yet been assessed on the Agency List Score. Alphabetical.About this ranking
What this page ranks
This page ranks 3 of the 4 assessed App QA and Testing agencies in United Kingdom — the ones carrying a published score — out of 34 listed.
The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.
Cohorts and awards
Agencies are compared within a cohort — here, App QA and Testing in United Kingdom. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 4, so no award can be issued here.
The 30 App QA and Testing agencies not yet assessed are listed on this page but not ranked.
One more was assessed and no published evidence of its work was found, so no score is shown for it.
Paid placement
Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.
Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.
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Questions
- How many App QA and Testing agencies are in United Kingdom?
- 34 are listed on Agency List in United Kingdom. 4 of them have been assessed on the Agency List Score as of September 2026, and 3 of those carry a published score.
- Which App QA and Testing agency in United Kingdom is ranked highest?
- Pixelfield, with an Agency List Score of 95.8, ranks #1 of 4 assessed agencies in App QA and Testing in United Kingdom.
- Why are 31 App QA and Testing agencies listed here but not ranked?
- 30 of the 34 listed have not yet been assessed on the Agency List Score. One more was assessed and no published evidence of its work was found, so no score is shown for it. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
- How is the ranking determined?
- By Agency List Score, within the App QA and Testing in United Kingdom cohort of 4 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.