17 Sept 2026 · TrustList Editorial
How to choose a mobile app development company: the 2026 buyer's guide
What to check before hiring an app developer: store accounts and review rules, OWASP MASVS security, privacy declarations, ownership and…
4 app development companies ranked by rating, review volume and listing quality.
Between them, the 4 app development companies on this page cover API (2) and responsive (2). 4 of them have written a profile you can read before you get in touch.

API · Also in Soho
For retail and lifestyle brands, Heady handles web and mobile product work from planning and design through to building and growing the product.

Also in Richmond
Data Directions, Inc. is a software and web development firm in Richmond, Virginia.

API · Responsive · Also in California and Asia
Working from the Sacramento area, Firethorne Design builds mobile-first WordPress themes and full-stack JavaScript web applications. The studio was founded in 2009.

Responsive
joen.io works in two directions: consumer apps that help a business reach its customers, and internal apps that improve the way the business runs.
These app development companies rankings have more to compare.
For vendors
The order is earned on evidence: client reviews, vetting, awards and the facts a business states on its own website, which we read and date. Nobody can pay to move up. Add reviews or verified facts to your free profile to move up at the next edition; there are two ways to stand out now, and each one says what it is.
Not on TrustList yet? Add your company or claim its listing, free.
Free
Paid · always labelled
Articles on this subject first, then the newest.
17 Sept 2026 · TrustList Editorial
What to check before hiring an app developer: store accounts and review rules, OWASP MASVS security, privacy declarations, ownership and…
15 Nov 2026 · TrustList Editorial
The BIR, SEC, DTI, DICT and six other bodies filed notifications after leaks were reported on 5 November. The NPC says reports alone do not…
15 Nov 2026 · TrustList Editorial
Subtel drew 62,749 UF from guarantees after WOM reached 53% to 68% of its committed 5G works by 30 September; the 100% deadline stays 31…
Jump to another ranked category.
Everything here links back to the same verified catalogue. Pick your next stop.