The right AI app can turn data into decisions and time into savings. DesignRush lists vetted AI application development companies building scalable, intelligent solutions. Search by expertise, reviews, and team size.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

Flyaps
VerifiedVerified by the DesignRush team for authenticity and credibility.Award WinnerRecipient of a Best Design Award for outstanding work.AI & Cloud Software Engineering
Since 2013, Flyaps has held a 4.9 average client satisfaction score while building generative AI tools, AI agents, and chatbots for startups and enterprises. Flyaps is one of the AI app development companies behind Bavovna AI's 2.7 million dollar raise and Airbyte's rise to unicorn status...
Top Services:
- Software Development
- AI Development
- IT Services
- DevOps Consulting
- Cloud Consulting
- Show more
- Location
- New York City, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 9 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsFlyaps Services
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Flyaps Reviews & Testimonials

Python Django Review from Andrew Stetsenko
We partnered with Flyaps to build the GlossaryTech Chrome Extension from scratch, including the backend for tech terminology analysis. The goal was to help recruiters, sales professionals, and other non-technical specialists in IT quickly understand the technical terms they encounter every day.The first release shipped back in 2017, long before today's AI tools were available off the shelf. Flyaps built a custom tokenization layer on top of NLTK library to resolve the ambiguity problem - distinguishing "Go" the language from "go to the shop," or "Swift" the framework from the adjective, while also correctly recognizing multi-token terms like "Ruby on Rails" or "Amazon Web Services". It was a pragmatic, precise solution that made the extension genuinely usable from day one.The outcomes have validated that early bet. GlossaryTech now holds "Featured" status in the Chrome Web Store, has passed 25,000 downloads, and consistently serves 10,000+ weekly active users and 2,000+ daily active users. For a niche professional tool, that level of organic, sustained engagement is rare - and it traces directly back to the technical foundation Flyaps put in place.Beyond the engineering, what stood out was how Flyaps engaged with the product itself. They contributed to architecture decisions, flagged edge cases early, and treated scope conversations with honesty rather than upsell. Communication was straightforward throughout, deadlines were met, and the codebase has held up well as we've extended the product over time.I'd recommend Flyaps to anyone looking for a partner who combines solid engineering with genuine product thinking. They've been central to GlossaryTech's success and continue to be a team we trust.

Software Development Review from Dariia Ryzhova
Our collaboration with Flyaps has lasted for several major projects, of which I personally worked with them on two. I am very satisfied with the level of expertise (both technical and domain), the involvement and responsibility of the teams, and the quality of delivery. We successfully brought 2 major products to life together. Flyaps teams have diverse specializations, so I had the opportunity to attract consultants from different fields: software developers, including high-level architects, DevOps, QA, and business analysts.The teams have a modern technology stack and are experienced in Agile development. This allowed for smooth integration with internal teams and processes. It is also important to note that Flyaps provides technical consulting on demand, and this was very valuable service as well. Overall, I can recommend working with Flyaps as a reliable and high-quality partner.
ТОВ ХОТНАЙТС's Review Sourced from Google
Flyaps delivered outstanding results for our e-commerce store! They built a visually stunning and high-performing website that perfectly captures our brand. Since launching, our site speed has improved by over 60%, and we've seen a noticeable increase in our conversion rate. Their team's technical expertise is top-notch, and the new admin panel they created has made managing our operations so much easier. I am happy to recommend this team of professionals.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Exaud
VerifiedVerified by the DesignRush team for authenticity and credibility.We are a software engineering and digital strategy AI company...
Top Services:
- AI Development
- IoT
- Mobile App Development
- Software Development
- Wearables
- Show more
- Location
- Ermesinde, Portugal
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $70/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 6 Projects Listed
End-to-end digital product design and engineering for enterprises and premium brands...
Top Services:
- Branding
- Mobile App Development
- Software Development
- AI Development
- Design Services
- Show more
- Location
- New York City, New York
- Number of Employees
- Under 49
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 4 Projects Listed
Paradigm is a bilingual creative agency in Tokyo. Since 1992 we have solved the most demanding communication, design, and technology challenges for brands building in Japan and Japanese brands going global. Our team works in English and Japanese, end to end...
Top Services:
- Branding
- Web Development
- Web Design
- AI Development
- Logo Design
- Show more
- Location
- Tokyo, Japan
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 4 Projects Listed
QuantaloomAI designs and ships custom AI products, agentic automation, and SaaS platforms built to run in production. Founded in 2023 and led by Senior AI & ML Engineer Sharjeel Ahmed, the remote-first team delivers AI product design, multi-agent systems (LangChain/LangGraph), custom SaaS engineering...
Top Services:
- AI Development
- Software Development
- UI/UX Design
- DevOps Consulting
- IT Services
- Show more
- Location
- Karachi, Pakistan
- Number of Employees
- Under 49
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 1 Project Listed
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5 Frequently Asked Questions About AI App Development Companies
How much does it cost to build an AI app?
Simple AI integrations using third-party APIs (e.g., OpenAI or Anthropic) or off-the-shelf builds can cost about $5,000-$20,000. For instance, a chatbot or search engine recommendation system.
More complex AI applications with custom workflows, multiple integrations, and a polished UI range between $100,000 and $250,000. Enterprise-level builds that require custom-trained models and large-scale data pipelines can cost over $500,000.
How long does it take to build an AI app?
A basic MVP using a pre-trained or off-the-shelf model can take around 2-3 months. A mid-complexity app, with custom features, multiple data sources, or advanced workflows, may need at least 4-11 months to build.
Ultimately, the AI application development timeline will depend on your project's scope, complexity, security and compliance requirements, and business readiness.
What is the difference between using an existing AI API vs. building a custom model?
An existing AI API (e.g., OpenAI, Anthropic, Gemini) offers access to a pre-trained model through a paid subscription or usage fee. This model is faster to launch, has lower upfront costs, and requires no in-house AI expertise to maintain.
A custom model is built and trained on your own data, providing more control over accuracy, behavior, and proprietary advantage. However, it costs significantly more, takes longer, and requires ongoing retraining and infrastructure.
Consider choosing custom AI if you have niche domain data, strict compliance requirements, and AI is your main differentiator.
What AI features are worth adding to an existing app?
The AI features worth adding to an existing app will depend on your core business needs, goals, and existing tech stack.
For companies moving beyond isolated AI features, AI-native workflow redesign involves rethinking processes around AI rather than simply adding AI tools to existing workflows.
The same study also found that 44.4% of tech founders believe that automation is the most beneficial AI feature, followed by customer personalization (22.2%) and AI-assisted productivity features (22.2%).
How do you ensure data privacy and data security?
Reputable AI app development companies will isolate your data through encrypted storage (at rest and in transit), strict access controls, and clear data-handling agreements with any third-party AI providers used.
To confirm the AI application development company’s legitimacy, consider the following:
- Search for compliance certifications relevant to your industry (e.g., HIPAA, SOC2).
- Require a written data processing agreement (DPA), which outlines where data is stored, who has access, and how it’s deleted.
- Obtain a copy of the AI API’s Terms of Agreement. It should explicitly state that the company and its model do not use your data for training.
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