21Twelve Interactive

Development and dev services for inbound lead capture and search visibility

Brooklyn, New York, United StatesApp Development

85% complete · site data refreshed 2026-07-15

About 21Twelve Interactive

Development and dev services for inbound lead capture and search visibility

Best for

  • Teams that want a 11–50 app development partner rather than a solo freelancer
  • Organizations comfortable scoping budget on a call (no published floor on Appsli yet)
  • Scopes centered on Android, Cross-Platform, and iOS
  • Stakeholders who prefer a partner associated with Brooklyn, New York, United States

Services

Tech stack

ShopifyWooCommerceWordPressMagentoWebflowSalesforceReactNext.jsVueAngularLaravelDjangoNode.jsDrupalGoogle AnalyticsTypeScript

On Appsli

Profile completeness is scored at 85/100 based on filled listing fields. Appsli currently lists 1492 agencies in App Development.

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