Best Berkeley Mobile App Developers

3 Companies - Rankings updated: April 03, 2026

All agencies are evaluated on DesignRush for demonstrated expertise and authentic client reviews to support your decision. Certain placements are paid.

United States × California × Berkeley ×
  • Top App Development Agency

    We help brands design and build superior digital products, enabling seamless user experiences only at the best Mobile App Development Company.  [... view App Maestros profile ]
    Location
    Berkeley, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $25,000 - $50,000

    App Maestros Services

    • Mobile App Development
    • Cloud Consulting
    • DevOps Consulting
    • AI Development
    • Big Data Analytics
    • Software Development
    • UI/UX Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    App Maestros Reviews & Testimonials

    • David B
      David B Review from Google
      1.0

      David B's Review Sourced from Google

      I want to share my experience so others are aware of the tactics this company uses. I was first contacted via an unsolicited spam text message promoting app development services. I had never heard of this business before, nor did I request any information from them. To see who was really behind the spam, I replied with a simple question about app pricing. The next day, I was contacted directly by this company.What was most concerning is that they tried to claim I had emailed them asking for their services — which is completely false. I never sent them an email or initiated any legitimate contact. The only reason they had my information was because of their own spam outreach. This is both misleading and dishonest.Professional companies do not need to resort to spamming strangers or fabricating stories about how potential clients found them. This type of behavior demonstrates a serious lack of transparency and integrity. If a business cannot be upfront and honest during the very first interaction, it raises major red flags about how they would handle a client’s project, communication, data, and money over time.Based on my experience, I cannot recommend this company. Trust is one of the most important parts of choosing a development partner, and unfortunately, their conduct showed me they are not worthy of that trust. I strongly advise anyone considering working with them to be cautious and look elsewhere for reputable professionals.

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    • Ruth Carlson
      Ruth Carlson Review from Google
      5.0

      Ruth Carlson's Review Sourced from Google

      App Maestros is an efficient source for developing optimal applications as their designed app for my delivery business is nothing short of splendid with innovative features and an intuitive interface. Many thanks to them.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Bed Bath & Beyond
    • Amazon
    • FedEx
    • DreamWorks
    • WhiteCastle
    • Walmart
    • Kohls
    • Politicos
    • Data Stream
    • Artizone
    Data sourced from the agency's DesignRush profile
  • Understand your code at every level

    Crowdbotics provides a rapid and efficient way to develop high-quality apps, features, integrations, and more for businesses.  [... view Crowdbotics profile ]
    Location
    Berkeley, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $10,000 - $25,000

    Crowdbotics Services

    • Software Development
    • Mobile App Development
    • Wearables
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Crowdbotics Reviews & Testimonials

    • Jeff Dennis
      Jeff Dennis Review from Google
      2.0

      Jeff Dennis's Review Sourced from Google

      Over a couple years ago, we hired CB to assist in developing an app for a great long standing client of ours.The engagement started out great, but over time got worse and worse.Months of delays. Bad communication. Empty promises.Then when we were delivered a non-functioning app, we were told we had 2 days to submit issues before the project was closed due to their TOS.And that TOS was different when we signed, so make sure you screenshot the current TOS.In the end the client fired us after 2 years of not being able to deliver an app that we all paid for in full (to receive a discount), but never functioned, and CB did not take any ownership. Rather than listening to our issues, they kept pointing to their TOS on the timeline to let them know of problems with the app.We ended up hiring and paying a different developer on our own dime to recreate the application from scratch.The damage was already done as far as the client relationship went.I kept all of the chats, screenshots, and everything showing the application#1 didn't meet our agreed upon requirements, and#2 was full of errors and issues.After a lot of back and forth, they agreed to assign someone to fix the app, but that went dark as well, and untimately went nowhere.On the plus side, some of the CB team were very nice, hence the 2 stars.

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    • Brady Mann
      Brady Mann Review from Google
      1.0

      Brady Mann's Review Sourced from Google

      I was really hoping the other reviews would be wrong but, after spending $70,000 we have no app (not even close) and virtually no communication. They make tons of promises but will leave you high and dry once they receive your final payment. Please don’t fall for this scam. I promise you’ll regret it.

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    • Jessica Davis
      Jessica Davis Review from Google
      4.0

      Jessica Davis's Review Sourced from Google

      I’ve been working with Crowdbotics for a few years now to develop my dating app, DateSafe, and I can confidently say that I’m quite pleased with the overall experience.When I first began my search for a development partner, I reached out to about ten different companies. Crowdbotics was the first to respond, and right from our initial meeting, their sales representative impressed me with his professionalism and understanding of my vision. I appreciated the way he took the time to answer all my questions and provided insights that showed he genuinely cared about my project. Although I interviewed several other companies, I ultimately decided to go with Crowdbotics because they offered a great balance of support, quality, and pricing that fit my budget.We kicked off the project in October 2021, with an expected completion date in the spring of 2022. While the timeline did extend longer than initially anticipated, I want to emphasize that the final product is worth the wait. There were definitely some growing pains along the way for both me and Crowdbotics, including changes in project managers and shifts in timelines. However, the team at Crowdbotics remained committed to delivering a robust app that met my expectations.For anyone that’s completely new to the world of app development, like I was/am, I would suggest really scrutinizing the PRD (Product Requirement Document) and get every single little detail/desire/function down on that document and understand everything that’s on there. Ask questions and get (and give) clarity—don’t assume anything! Things that might be obvious to you, might not be to the developers and vice versa. The PRD is what they will refer back to and if something isn’t on there you will (obviously) have to pay for it to be implemented if it’s something you really want. There were other things I learned along the way, but I think that is my biggest piece of advice. Oh! And be aware that Apple is very difficult to get apps published on the AppStore, so budgeting for a Progressive Web App from the start of your project might be worth it.Now that DateSafe is pretty much complete, I can truly appreciate the hard work and dedication that went into the development. I’m so grateful to everyone along the way, especially the few that have been apart of the team from the very beginning until the finished product. The app functions well, and I’m excited to take it to market. Overall, I would recommend Crowdbotics to anyone looking for a reliable, comprehensive development partner, especially if you’re willing to be patient through the process. They have a talented team that will work to bring your vision to life.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Stripe
    • Airbus
    • Copper CRM
    • Aura
    Data sourced from the agency's DesignRush profile
  • Experts in Web Design and Development

    Frugalnova is a well-known brand in the industry of website and mobile app development. Our worldwide headquarters are in Mumbai, India, with operations in California, the United States, and London. We serve customers from all around the world. Our cutting-edge technology helps our partners optimize their  [... view Frugalnova profile ]
    Location
    Berkeley, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $15/hr
    Minimal Budget
    $1,000 - $10,000

    Frugalnova Services

    • Web Development
    • UI/UX Design
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Retail Industry
    • eCommerce Industry
    • Software & IT Services Industry
    Data sourced from the agency's DesignRush profile

Frequently Asked Questions

What services do app development companies provide?

App development services span the software development lifecycle: discovery and planning, mobile app design, custom software development, testing, and launch. Core services are: 

  • Product strategy and discovery: Establishing business goals, target users, technical requirements, and development roadmap. 
  • UI/UX design: Crafting the mobile solution's user flows, wireframes, information architecture, design system, and interactive elements (e.g., buttons and menus) to ensure brand consistency and frictionless user experience. 
  • Native app development: Producing mobile applications specifically for iOS or Android for maximum performance and access to device features. 
  • Cross-platform development: Building apps for iOS and Android from a shared codebase, balancing speed-to-market with app performance and maintainability. 
  • Web app development: Engineering browser-based applications that don’t require installation and can be deployed quickly across mobile and desktop devices. 
  • Hybrid app development: Packaging a web app inside a native container (WebView) to ship through app stores.  
  • QA and testing: Conducting functional, usability, performance, compatibility, security, and regression tests to ensure that the app meets industry and client standards before deployment. 
  • System integration: Connecting the app to existing systems (e.g., CRM, ERP, payments) through APIs for consistent data flow. 
  • Release and deployment: Managing app store submissions, implementing CI/CD pipelines, monitoring app performance, and providing incident response.  
  • Ongoing maintenance and support: Updating the app for OS changes, fixing bugs, optimizing performance, installing security patches, and enhancing features.  

In addition to these app development services, many companies also offer digital marketing services to support software growth. This includes app store optimization, social media marketing, and paid advertising. 

When should you choose a native app development or cross-platform app development?

The answer depends on your target users, budget, timeline, UX expectations, technical requirements, and the expertise of your chosen mobile app development company. Here is a breakdown of each one to help you in your decision: 

 Native app developmentCross-platform app development 
Advantages
  • Strong performance, security, and stability
  • Highly polished, platform native UX
  • Access to OS features, resulting in high customizability
  • Faster and more cost-effective to launch on both iOS and Android devices
  • Shared codebase simplifies feature parity
  • Easier maintenance, as you’ll only need one team to manage the app
Considerations
  • Cost and timelines double if you are targeting both Android and iOS 
  • Maintenance also doubles, as you will have to manage apps separately
  • Some features still require platform-specific work 
  • Requires extra UI/UX work for apps to feel truly native 
  • Larger digital footprint, often resulting in lower app performance 
Best For
  • Apps with heavy device integration or demanding performance (e.g., advanced AR and intensive on-device processing)
  • Apps where speed-to-market and broad reach matter most (e.g., business apps and eCommerce marketplaces)

What is the difference between a PoC, prototype, and MVP?

A proof of concept (PoC) is used to validate the technical feasibility of an application for new technologies, like AI development or complex integrations. While a PoC isn’t production-ready, it helps reduce technical risk early.  

A prototype is a clickable or interactive model that simulates functionality without the full backend. It is ideally used to test user flows, information architecture, and design direction with stakeholders or early users. 

A minimum viable product (MVP) is an early version of the final app and only has the core features and functions. Unlike a prototype, an MVP involves both software development and design, enabling developers to confirm product-market fit and conduct real user testing. 

Because an MVP involves real build, deployment, and measurement, it often requires longer timelines and bigger budgets than a PoC or prototype. 

How to choose the best tech stack?

The best mobile app development tech stack will depend on your priority (speed to market vs peak performance), required device features, UX expectations, compliance and security needs, and long-term maintainability.  

Most decisions begin with a platform approach: 

Native Development (best-in-class performance) 

  • Android app: Kotlin, Java, Android Studio, Android SDK with Jetpack Compose or Views/XML 
  • IOS app: Swift, Objective-C, Xcode, iOS SDK with SwiftUI or UIKit 

Cross-Platform and Hybrid App Tech Stack (faster multi-platform delivery) 

  • Flutter is best for a highly consistent UI across iOS and Android and fast iterations. 
  • React Native is ideal if your team is an expert in React/JS, and you want to move quickly with broad library support.  
  • Kotlin is recommended if you want to share core logic but have a native UI. It’s also often used for complex apps and features. 
  • .NET MAUI is best for internal business software that requires seamless integration with existing Microsoft systems. 
  • Ionic is often used for progressive web app developments and is best for teams with web development skills but want to ship to app stores. 

How do app development firms secure data?

A custom mobile application development company secures data by combining a secure development lifecycle with technical controls, including:  

  • DevSecOps (Shift Left): Conducting security tests throughout the development pipeline instead of a single phase, which involves threat modeling, secure coding standards, code reviews, and automated security checks in CI/CD. 
  • Dependency/SDK risk management: Vetting third-party software development kits (SDK) and open-source libraries. 
  • Strong authentication and access control: Implementing multi-factor authentication when appropriate, role-based access controls (RBAC), least privilege, and secure session/token handling.  
  • Encryption and key management: Conducting encryption in transit (TLS) and at rest when needed, with proper key handling and secrets management. 
  • Secure mobile storage: Using platform-provided secure storage (iOS Keychain / Android Keystore) and avoiding sensitive data in logs. 
  • Backend/API protection: Securing API design and running server-side authorization checks, rate limiting, and input validation. 
  • Mobile hardening (as needed): Implementing techniques like jailbreak or root detection, tamper resistance, and selective use of certificate pinning. 
  • Privacy-by-design: integrating clear permission prompts and consent flows aligned with privacy requirements and platform policies. 

About The Author and Expert Reviewer

Selina Garcia has authored 500+ articles and edited 50+ published books in economics, law, and history. Her unique blend of experiences allows her to approach content creation from a well-rounded perspective. Currently, Selina applies her expertise to producing insightful articles on IT, software, and applications for DesignRush.

Former Development Director

Sergio is a technology leader with over six years of experience managing global teams and delivering projects across fintech, sportstech, and B2B platforms. At DesignRush, he drove product growth and development execution, building tools that speed up processes by 95% and cut costs by 35% while maintaining full uptime.