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Mobile, Web, and AI Development

Semaphore Mobile is a Dallas-based software development firm specializing in custom web, mobile, AI, and IoT solutions. Since 2002, we’ve helped companies design and build scalable digital products that solve real business problems, from consumer-facing mobile apps to complex internal platforms and connected device ecosystems.

  • Min project size
    $5,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    10 - 49
  • Locations
    Plano, TX
  • Year founded
    Founded 2002
  • Languages

Overview by:

Reviewer avatar
Jonah Silverthorn
Director of Sales and Operations About the Team

1 Language that we service

  • English

1 Locations

  • Plano , TX

Industries
Business services
20%
Consumer products & services
15%
Energy & natural resources
10%
Financial services
10%
Medical
10%
eCommerce
10%
Advertising & marketing
5%
GPS, Navigation & GIS
5%
Information technology
5%
Manufacturing
5%
Media
5%
Clients
Midmarket ($10M - $1B)
50%
Small Business (<$10M)
40%
Enterprise (>$1B)
10%
Certified in:
Mobile App Development

Pricing Snapshot

Min. project size $5,000+
Avg. hourly rate $50 - $99 /hr
Rating for cost 4.9 /5

What Clients Have Said

Semaphore Mobile offers competitive pricing, with project costs ranging from $7,000 to over $200,000. Clients appreciate the value for cost, citing excellent communication, project management, and a genuine commitment to success, making them a highly recommended development partner.

This summary is based on verified Clutch reviews.

Most Common Project Size

$10,000 - $49,999 based on 15 reviews
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Select a service to see pricing information

Semaphore Mobile Review Insights

Overall Review Rating

5.0
  • Quality 5.0
  • Schedule 4.9
  • Cost 4.9
  • Willing to Refer 5.0

Top Mentions

Review Highlights

  • Responsive and Timely Communication

    Semaphore Mobile is commended for their timely communication, consistent updates, and responsiveness. They are proactive in addressing queries and concerns, ensuring clients are always informed.

  • Understanding Client's Vision

    Semaphore Mobile takes the time to understand client needs and industry challenges, resulting in tailored solutions that align with client goals and enhance user experiences.

  • Genuine Interest in Client Success

    The team shows genuine interest in client projects and success, going beyond just fulfilling requirements to actively contributing ideas and improvements.

  • Expertise in Mobile App Development

    Semaphore Mobile has been successful in developing robust mobile apps across various industries, including AI, social media, and biometric identification, demonstrating technical expertise.

  • Room for More Structured Meetings

    A client suggested more structured meetings, such as weekly or bi-weekly sessions, for enhanced scope and idea discussions, indicating a potential area for improvement.

  • Strong Client Relationships

    Clients praise Semaphore Mobile for building strong, personal relationships. They feel valued, as if they are the most important client, which is rare in today's business world.

Semaphore Mobile Reviews

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Mobile App & API Development for Online Vehicle Marketplace

  • API Development Mobile App Development
  • Confidential
  • July 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Semaphore Mobile truly strives to make our project a success and cheers us on to succeed along the way."

Jul 12, 2026
Owner, CarZilly
Evan Jarcy
Verified
  • Automotive
  • 75087 Rockwall, TX
  • 1-10 Employees
  • Online Review
  • Verified

Semaphore Mobile haas created a mobile app and all APIs for an online vehicle marketplace. The team has also handled the app store submissions, designed the UI, and developed the backend.

Mobile App Dev & UX/UI Design for Outdoor Experiences Co

  • Mobile App Development UX/UI Design
  • Confidential
  • Apr. 2024 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Semaphore Mobile’s level of communication and ability to take a vision and bring it to life is impressive."

Jun 22, 2026
Owner, ExploreMore
CJ Cottey
Verified
  • Recreation
  • Dallas, Texas
  • 1-10 Employees
  • Online Review
  • Verified

Semaphore Mobile provides mobile app development and design services for an outdoor experiences company. The team has built an app and backend software and implemented geofenced locations.

Custom Software Dev for Mobile Classifieds Marketplace

  • Custom Software Development Mobile App Development Web Development
  • Confidential
  • Aug. 2021 - Apr. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They demonstrated a genuine dedication to our success."

Sep 9, 2025
Co-Founder, La Subasta App
Sergio Budini
Verified
  • Advertising & marketing
  • Dallas, Texas
  • 1-10 Employees
  • Online Review
  • Verified

Semaphore Mobile developed a website for a mobile classifieds marketplace. The team also developed a mobile app and a CMS

Platform Overhaul & Dev for Social Media NFT App Company

  • Mobile App Development
  • $10,000 to $49,999
  • Apr. 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"We felt like we had a business partner rather than an order-taker."

Nov 8, 2022
CEO, Mintage Inc
Joshua Ramsey
Verified
  • Other industries
  • Salt Lake City, Utah
  • 1-10 Employees
  • Online Review
  • Verified

Semaphore Mobile has overhauled the platform code of a social media NFT app company. This involves front- and backend development, crypto wallet integrations, and feature and functionality development. 

Mobile App Dev for Public Health Agency

  • Mobile App Development
  • $10,000 to $49,999
  • Aug. 2021 - May 2022
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They did an amazing job on the app, and we are pleased with the results. It was exactly what we envisioned and more."

Jul 7, 2022
Program Coordinator & CHW, Public Health Agency
Rhonda Brown
Verified
  • Other industries
  • Paris, Texas
  • 11-50 Employees
  • Online Review
  • Verified

A public health agency tapped Semaphore Mobile to develop a mobile app to highlight and promote the available activities along a local trail. They had several discovery meetings to discuss the client's needs.

Mobile App Dev for Biometric Identification Software

  • Custom Software Development
  • $10,000 to $49,999
  • Feb. - Apr. 2022
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They were impressive in every measurable way."

Apr 25, 2022
Chief Tech Architect, Biometric Identification Software
Chad Steen
Verified
  • Other industries
  • Dallas, Texas
  • 11-50 Employees
  • Online Review
  • Verified

A biometric identification software company hired Semaphore Mobile to develop native mobile apps for iOS and Android. Five members of project managers, designers, and developers worked on the project.

Mobile App Development for Funeral Home Investment Company

  • Mobile App Development
  • Android App Development iPhone iOS App Development
  • $50,000 to $199,999
  • Sep. 2021 - Ongoing
5.0
Quality
5.0
Schedule
4.5
Cost
4.0
Willing to Refer
4.0

“Semaphore has delivered 100% of what we want.”

Jan 15, 2022
App Development Director, Angel Homes Funeral Investment Grp
Brandon Adams
Verified
  • Other industries
  • Dallas, Texas
  • 1-10 Employees
  • Phone Interview
  • Verified

Semaphore Mobile has developed an Android and iOS mobile app for a funeral investment group. The team has also designed the client’s website and logo. 

Mobile App Dev for Creative Agency

  • Custom Software Development
  • Other app platform
  • $10,000 to $49,999
  • Apr. - Dec. 2021
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They streamlined the project and helped us get across the finish line."

Jan 7, 2022
Founder, Counsel Creative
Kenny Morgan
Verified
  • Advertising & marketing
  • Chattanooga, Tennessee
  • 1-10 Employees
  • Phone Interview
  • Verified

Semaphore Mobile developed a mobile app for a creative agency’s customer. They used the client’s design in building the app.

Mobile App Development for Oil Wastewater Disposal Company

  • Mobile App Development
  • Field Operations Mobile App Development Android App Development React
  • Less than $10,000
  • July - Aug. 2021
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"We were glad we found them. It was easy to get things off the ground and get moving with Semaphore."

Sep 1, 2021
GIS Analyst, East Texas Salt Water Disposal
Jarrett Roland
Verified
  • Other industries
  • Kilgore, Texas
  • 11-50 Employees
  • Phone Interview
  • Verified

Semaphore Mobile migrated the Android mobile application for a wastewater disposal company. They worked with another IT company to integrate the app with the website and fixed bugs from the previous developer.

Showing 1-10 of 22 Reviews

Our Story

Founded in 2002, Semaphore Mobile was the first mobile development firm in Texas, beginning in telecommunications and building systems for Nokia and BlackBerry. In 2007, ahead of the App Store launch, we built and launched Craigslist’s mobile app. Since then, our team has contributed to projects for GasBuddy, ACE Cash Express, Transamerica, Google, and more. Today, we continue to evolve with our clients, providing expert mobile, web, IoT, backend, QA, and design services.

Meet the Team

Eric Silverthorn

Eric SilverthornCEO

Eric brings deep technical leadership and decades of experience building software systems across mobile, web, IoT, and backend platforms. Since Semaphore Mobile’s early days, he has helped guide the company through major shifts in technology, from ea

Jeff Owens

Jeff OwensDirector of Technology

Jeff plays a key role in leading client strategy, project planning, and delivery at Semaphore Mobile. With a strong understanding of both business goals and technical execution, he helps clients clarify requirements, prioritize features, and move pro

Jonah Silverthorn

Jonah SilverthornDirector of Sales and Operations

Jonah helps lead client relationships, sales, and project discovery for Semaphore Mobile. He works closely with clients to understand their goals, define project scope, and connect them with the right technical resources across mobile, web, IoT, back

What Sets Us Apart

20+ years of development experience

We are not just developers. We are product partners with 20+ years of experience turning complex ideas into real software. From early mobile systems to apps used by millions, we know how to guide strategy, design, development, QA, and launch with clarity and accountability.

Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.

Learn More
Verified Client Reviews
19
Overall Review Rating
5
Source
Clutch
Last Updated
July 12, 2026

Business Entity

Business Entity Name Semaphore Mobile, LLC
Source Texas Comptroller of Public Accounts
Jurisdiction of Formation Texas
Date of Formation February 13, 2008
Status Active
Last Updated December 15, 2022
ID 0800937352

Credit Report Results

International Credit Risk Assessment Low Risk
Source Creditsafe
Last Updated December 15, 2022
Learn More About The Clutch Verification Process

Locations (1)

5960 W. Parker Road Suite 278 #134 PlanoTX, United States 75093

10 - 15

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