How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Key takeaways
- Flutter suits teams that want one codebase for Android and iOS, but design, backend, and maintenance quality still vary a lot between firms.
- Large agencies fit complex, multi-team programs, while smaller specialist teams often move faster for startups and single-product builds.
- Most firms price by project or dedicated team, so expect a custom quote rather than a fixed price list.
- Ask every shortlisted firm for recent Flutter work in your industry, plus references you can actually contact.
- A short paid discovery phase is a practical way to test communication and technical judgment before committing to a full build.
Quick comparison
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We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
The best Flutter app development companies
Starting priceSee website
Free planNo
Appinventiv is a large digital product agency with offices in several countries, and Flutter sits inside a much wider offer that covers native mobile, web, cloud, and AI work. That breadth matters when an app needs more than a front end, for example a customer portal, an admin dashboard, or integrations with payment and CRM systems. A client that expects its product to grow into a platform, rather than stay a single app, gets a team that can staff each layer.
The trade-off with a firm of this size is process weight. Expect structured discovery, documentation, and staged sign-offs, which suit regulated or multi-stakeholder projects but can feel slow for a founder who wants a prototype in a few weeks. Pricing is quoted per project, so bring a clear scope, a target launch window, and a realistic budget range to the first conversation. Ask for Flutter case studies in your sector and for the team members who would actually work on your build, not just the sales staff.
What we like- Broad service range, large team, experience across industries
Watch out for- Project pricing is quote-only, larger engagements may carry higher minimums
Starting priceSee website
Free planNo
MindInventory is a mobile and web development firm that works with startups and mid-sized companies on product builds, including Flutter apps for retail, healthcare, travel, and on-demand services. Its pitch is practical: a dedicated team or a fixed-scope project, with design and development under one roof. For a company that has a validated idea and needs to ship a polished first version, that combination keeps handoffs to a minimum.
Communication rhythm is the detail to settle early. The firm works with clients across time zones, so agree on overlap hours, a weekly demo cadence, and a single point of contact before work starts. Like most agencies on this list, it does not publish prices, so the quote will depend on feature count, design complexity, and backend needs. A short discovery sprint that produces wireframes and a technical plan is a sensible first step if your requirements are still taking shape.
What we like- Strong mobile focus, flexible engagement models, experience with startups
Watch out for- Pricing is quote-only, time zone overlap needs planning for some clients
Starting priceSee website
Free planNo
TechAhead has built mobile products for enterprise clients for many years, and its Flutter work sits alongside native iOS and Android, web, and digital transformation services. That background shows in how it approaches security, compliance, and integration with existing enterprise systems, which are often the hardest parts of a corporate app program. If your app must connect to legacy systems, pass a security review, or meet accessibility requirements, an enterprise-tested process is a real advantage.
Smaller clients should weigh fit carefully. Enterprise processes bring documentation and governance that a two-person startup may not need, and minimum engagement sizes may exceed a prototype budget. During selection, ask how the firm handles phased delivery, so you can fund a first release and decide on later phases with real user feedback in hand. Also confirm who owns the code and documentation at each milestone, since that clarity protects you if you later bring work in-house.
What we like- Enterprise experience, long operating history, full product lifecycle support
Watch out for- Quote-only pricing, better suited to larger budgets than tiny prototypes
Starting priceSee website
Free planNo
Konstant Infosolutions offers mobile and web development, including Flutter apps, at price points that often come in below large Western agencies. Its portfolio spans e-commerce, food delivery, healthcare, and education, and it handles design, development, testing, and deployment. For a business that needs a complete app on a defined budget, that end-to-end coverage avoids the cost and friction of hiring separate designers and developers.
Lower cost only helps if quality holds, so vet this firm the same way you would a pricier one. Review live apps it built, not just screenshots, and test them for speed, polish, and stability. Ask about its testing process for both platforms, how it handles app store rejections, and what post-launch support costs. Confirm the working hours overlap and the escalation path if a deadline slips. A fixed-scope contract with clear acceptance criteria is the safest structure for a first engagement.
What we like- Competitive pricing, wide industry coverage, design plus development in-house
Watch out for- Quote-only pricing, time zone coordination matters for US and European clients
Starting priceSee website
Free planNo
Hyperlink InfoSystem is one of the larger firms on this list, with a high volume of mobile apps delivered and teams across the USA, India, and the UAE. It offers fixed price projects, dedicated developers, and onsite models, which gives clients flexibility in how they buy. That scale helps when a program needs many developers at once, or when several apps must be built in parallel.
Scale also means your experience depends heavily on the specific team assigned to you. Ask for the project manager and lead developer by name, review their past Flutter work, and agree on reporting habits before signing. The firm publishes broad service pages rather than fixed prices, so your quote will follow a scoping conversation. If you are comparing it against smaller firms, weigh total cost against the management effort you will need to invest, since a larger vendor still needs active client direction.
What we like- Very large delivery capacity, fixed price and dedicated team models, broad industry work
Watch out for- Quote-only pricing, project management quality can vary by team
Starting priceSee website
Free planNo
Simform positions itself as a product engineering partner rather than a short-order app shop, and its recent work centers on AI-assisted delivery, cloud, and data platforms alongside mobile apps. For a Flutter project that involves a complex backend, data pipelines, or a long roadmap, that engineering depth is useful. The firm tends to work best with clients who want a partner for several releases, not a single drop-and-go build.
Clients should expect a discovery and architecture phase that takes time before coding starts. That upfront work pays off on larger products, where a wrong early choice in data models or integrations is expensive to undo. It can feel heavy for a simple marketing-style app with a handful of screens. Ask how Simform staffs Flutter work specifically, whether it uses platform channels and native modules when a feature needs them, and how it measures progress beyond hours logged.
What we like- Product engineering focus, modern delivery practices, strong case study record
Watch out for- Quote-only pricing, more oriented to ongoing partnerships than one-off small builds
Starting priceSee website
Free planNo
GeekyAnts has a long history in cross-platform development, including React Native and Flutter, and its engineers contribute to open-source tools used widely in the mobile community. That background is a meaningful signal: a firm that builds tools other developers rely on usually understands the framework at a deeper level than one that only assembles screens. Its teams work on product design, development, and AI-assisted engineering for startups and enterprises.
For a Flutter buyer, the practical question is team composition. Ask which engineers on your project have shipped production Flutter apps, and how the firm handles platform-specific work such as push notifications, in-app purchases, and device testing. GeekyAnts also runs offices in India, the USA, and the UK, so confirm the time zone mix of your team. Pricing is quoted per engagement, so a clear feature list and a phased plan will produce the most comparable proposals.
What we like- Deep cross-platform expertise, open-source contributions, product-minded teams
Watch out for- Quote-only pricing, demand for senior staff can affect availability
#8Netguru
Best for: Design-led digital products4.3/5 on
G2 (2 reviews, checked Oct 2026)
Visit netguru.com
Starting priceSee website
Free planNo
Netguru is a software consultancy with a strong design practice, and its Flutter work is part of a wider product offer covering strategy, design, and development. That matters when the app itself is the product and user experience decides whether people stay. A team that can run user research, prototype, and test with real users before committing to a build often saves a costly redesign later.
Netguru tends to suit funded startups and established companies rather than the smallest budgets, so early-stage founders should check minimum engagement levels before investing heavily in the sales process. When you talk to the firm, ask for Flutter projects with measurable outcomes, such as store ratings, retention, or release cadence, and ask how design and engineering collaborate day to day. Agree on intellectual property transfer, code ownership, and a handover plan, since those terms matter most when a partnership ends.
What we like- Strong design and product strategy, large delivery team, long market presence
Watch out for- Quote-only pricing, premium positioning may exceed small startup budgets
How we chose
We built this list from vendor homepages and service pages, public case studies, and third-party review profiles such as Clutch and G2, then checked that each firm lists Flutter or cross-platform mobile development as a current service. We favored firms with a visible portfolio of shipped apps, a stated engagement model, and enough team capacity to support a project after launch. We excluded firms that no longer list mobile development, firms with no verifiable company presence, and one-person freelance profiles, since this list covers companies a buyer can contract with for a full build.
We did not claim hands-on testing of any firm, and no firm paid for placement. Pricing is quoted rather than published for all eight entries, so starting prices are shown as "See website" and readers should request written quotes. Company details change, so confirm team size, offices, and service scope on the vendor's own site before signing.
What to ask before you sign
A good vendor conversation covers more than an hourly rate. Start with scope: which features belong in the first release, which can wait, and what a minimum viable product looks like for your users. Then move to process: how often you will see working builds, how feedback gets tracked, and how changes to scope are priced. Ask about testing on real devices for both Android and iOS, since emulator-only testing misses real-world issues with performance, permissions, and screen sizes.
Ownership and support deserve their own questions. Confirm that you own the source code, design files, and documentation, and that they are delivered at each milestone rather than only at the end. Ask what post-launch support includes, how bugs found after release are handled, and what a typical maintenance retainer costs. Finally, request two or three references from clients with similar projects, and actually call them. Ask about missed deadlines, communication quality, and whether the final cost matched the original quote.
Frequently asked questions
How much does a Flutter app development company usually charge?
Most firms quote per project or per dedicated team, so cost depends on feature count, design complexity, backend work, and timeline. Simple apps cost far less than apps with payments, real-time features, or complex integrations. Request itemized quotes from at least three firms so you can compare scope, not just totals.
Is Flutter a good choice for both Android and iOS?
Flutter works well when the two platforms should share most features and design, since one codebase serves both. It is less ideal when an app depends heavily on platform-specific hardware features or needs pixel-perfect native behavior on each platform. Your vendor should explain any platform trade-offs for your specific feature list.
How long does a typical Flutter app take to build?
A simple app with standard features often takes two to four months from design to store submission. Apps with custom backends, integrations, or complex workflows can take six months or longer. A phased plan with an early test release gives you user feedback sooner and reduces the risk of a long, silent build.
Should I hire a dedicated team or a fixed-price project?
A fixed-price project suits a well-defined scope with a firm deadline. A dedicated team suits a product that will evolve over several releases, since the same engineers build knowledge over time. If your requirements are still changing, a dedicated team or a time-and-materials arrangement with clear checkpoints is usually more flexible.
Who owns the code after the project ends?
Ownership should be stated in the contract before work starts. Most reputable firms transfer full source code, design assets, and documentation to the client, often at each milestone. Confirm this in writing, including access to repositories, app store accounts, and third-party service accounts set up in your name.
Sources we checked (8)
- https://appinventiv.com
- https://www.mindinventory.com
- https://www.techaheadcorp.com
- https://www.konstantinfo.com
- https://www.hyperlinkinfosystem.com
- https://www.simform.com
- https://www.geekyants.com
- https://www.netguru.com
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.
Appinventiv
MindInventory
TechAhead
Konstant Infosolutions
Hyperlink InfoSystem
Simform
GeekyAnts