Top Cross-Platform App Development Agencies

Flutter and React Native developers who ship one app to both iPhone and Android.

49 agencies listed Updated

Ranked by verified client reviews: each agency’s average rating, weighed against how many reviews it has. Agencies without reviews follow, ordered by their Google Maps rating when there is one. Agencies pay a one-time fee to be listed. Payment never affects their rank or their reviews. How we rank

Inoxoft

No reviews yet

ISO 27001, Google and Microsoft certified software development company

Min. project size
$10,000+
Hourly rate
$25–$49 / hr
Team size
50–249 employees
Headquarters
Philadelphia, United States

Service focus

  • Web Development 20%
  • Mobile App Development 10%
  • Software Development 10%
  • Testing Services 10%
Visit website (opens in a new tab) View profile Inoxoft

Kilowott

No reviews yet

Built for what comes next

Min. project size
Not listed
Hourly rate
$50–$99 / hr
Team size
50–249 employees
Headquarters
Sandnes, Norway

Service focus

  • Mobile App Development 20%
  • Web Development 20%
  • Software Development 20%
  • E-commerce Development 15%
Visit website (opens in a new tab) View profile Kilowott

LANARS

No reviews yet

Painless innovations provider

Min. project size
Not listed
Hourly rate
$50–$99 / hr
Team size
50–249 employees
Headquarters
Oslo, Norway

Service focus

  • IoT Development 30%
  • Mobile App Development 15%
  • Software Development 15%
  • Web Development 10%
Visit website (opens in a new tab) View profile LANARS

Le Backyard

No reviews yet

Independent Paris digital product agency for mobile, web and software since 2015

Min. project size
$5,000+
Hourly rate
Not listed
Team size
10–49 employees
Headquarters
Paris, France

Services

  • Mobile Applications
  • Web Applications
  • Website Creation
  • Software Development
  • E-commerce
Visit website (opens in a new tab) View profile Le Backyard

Cross-Platform App Agencies at a glance

Typical hourly rate
$25–$49 / hr
51% of 41 agencies
Most common minimum project
$10,000+
39% of 33 agencies
Most common team size
50–249 employees
59% of 46 agencies

Industries they serve most

  • Healthcare (38)
  • Financial services (32)
  • E-commerce (28)
  • Education (14)
  • Real estate (11)

Based on what 49 listed agencies report about themselves, and 0 verified client reviews. Updated October 24, 2026.

Cross-Platform App Agencies by country