Hire a Flutter developer for your first app

What is Flutter and why use it for a first app?

Flutter is a framework that lets developers build apps for both Android and iOS using one shared codebase. The code runs fast because it compiles to ARM or Intel machine code, or to JavaScript, for performance on any device. It can deploy to web and desktop from the same project, along with mobile and embedded devices.

One key feature is Hot Reload. Developers can change code and see results almost instantly, without restarting the app. This speeds up fixes and design changes. You get to see progress faster during development.

Flutter lets you control every pixel, so you can create custom designs that look and feel great on any screen. It works with Firebase, Google Pay and Google Maps, as these are part of Google's app development ecosystem. If you need any of these, integration is simpler than with some other tools.

Using one codebase for multiple platforms lets you build apps for mobile, web and desktop together, which can save time.

You may hear "API" when discussing features like login or payments. An API is how your app talks to another service, such as fetching data from a server [https://bestdev.in/glossary/what-is-api/]. Flutter handles these calls smoothly.

When you should not hire a Flutter developer

Flutter may not be the best fit if you need a prototype under $5,000 or a freelancer for a 2-week task.

Skip a Flutter developer if your goal is a sub-$5k prototype or a two-week task. Such work may not need a full developer. Use freelancers or in-house help for small jobs.

How much it costs to hire a Flutter developer in India

As of early 2023, an MVP app with 3 to 5 core features, basic login and one API integration costs $15,000 to $40,000. As of early 2023, a consumer app with 5 to 8 features, payments and analytics integration costs $35,000 to $75,000. As an estimate, for a B2B app with 8 to 12 cores, CRM, dashboard and auth, the cost is $60,000 to $120,000. For an enterprise app with 12+ cores and ML/AI or legacy integration, the cost is $120,000 to $300,000+.

What drives the cost up includes app complexity, custom design work, backend systems, and third-party integrations like payments or CRM. More screens, user roles, or AI features also raise the price. You pay more if the developer works in a high-cost city or as part of a large agency.

The best payment model for a first app is milestone-based payments. You pay only when a working part is delivered. Individual developers charge $20 to $40 (₹1,600 to ₹3,200) per hour. But hourly billing can lead to cost overruns if the scope changes. A fixed price per milestone keeps both sides aligned.

For ongoing work, a dedicated team costs $12,000 to $28,000 per month (₹9.6 to ₹22.4 lakh). This suits apps that need constant updates. But for a first app, milestone payments are safer.

To build the cost of your app, you can plan by weeks, team size and rate.

How long it takes to build your first Flutter app

An MVP app with 3 to 5 core features takes 8 to 12 weeks. A medium app with payments and analytics takes 3 to 5 months. A B2B or SaaS app with CRM, dashboard and auth takes 4 to 6 months. These timelines assume a clear scope and steady work.

Unclear scope can cause delays. You may add weeks if features change, approvals lag or testing finds major bugs. Flutter itself is fast, but slow decisions or missing inputs from you can hold things up.

To stay on track, agree on a written scope before work starts. Break the project into milestones with fixed goals. Review progress every two weeks. Use a shared tool to track tasks. Stick to the agreed features unless you accept the time cost of changes.

For a real example of how to plan each week, see the week-by-week build plan for a quick-commerce app.

How hiring and working with a Flutter developer works

Agile methods support faster delivery and adaptability, and regular updates keep stakeholders informed. Written change orders help avoid disputes over extra changes.

If you do not know what inputs to share, a guide to hiring may help. As the project moves forward, you review progress every few weeks and approve next steps. Some agencies list structured workflow and communication as a feature for Flutter app development. But even with freelancers, you can set up regular check-ins and demos.

Scope changes are normal. When you want something new, the developer should estimate the extra time and cost. You then agree in writing before work starts. This protects both sides.

Who owns the app code and what if the developer leaves?

You own the app code if your contract includes an ownership clause and the code is in your accounts from day one. Payment does not automatically transfer ownership. Without a written agreement, the developer may legally keep the rights, even after you pay. To avoid this, your contract must include a clause that assigns all intellectual property to you upon delivery or payment.

Set up the source code repository, app store accounts and cloud services in your name before work starts. This prevents lock-in and ensures you can continue the project with another team. Use milestone-based payments tied to deliverables, not time, so ownership transfers step by step.

If the developer leaves or stops responding, you can still manage the app if you have the code and access. Without it, you may need legal help to enforce the contract. Under US law, copyright transfer must be in writing and signed, so keep all agreements documented.

When transferring an app on Apple App Store. The new owner gets access to all analytics data from 1 April 2015 or the app’s launch date, whichever is later. Sales and payment data after the transfer go only to the new owner. You can still view past performance in Sales and Trends.

For full safety, ask: "Will the source code be in my GitHub from day one?" and "Is IP assigned to me in the contract?". This is part of how you can I get the source code of my app?.

Support and maintenance after the app launches

You should expect post-launch support to include bug fixes, performance updates and minor feature tweaks. Most top Flutter development firms include 30 to 90 days of this support for free as standard. After that, ongoing maintenance typically costs 15 to 25% of the initial development cost per year.

This annual cost covers regular updates, server monitoring and user support. For example, if your app cost ₹40 lakh to build, budget ₹6 to ₹10 lakh per year for maintenance. The exact amount depends on how many users you have, how often you update, and what level of support you need.

L1 support agents in India earn ₹18,000 to ₹35,000 per month. Junior L2 engineers charge ₹45,000 to ₹65,000 per month. An L3 engineer's salary is ₹100,000 to ₹150,000+ per month.

Some developers offer a managed service that bundles all levels. Others charge per incident or per hour. Always ask for a written plan that says what is included, how fast issues are fixed, and how much it costs beyond the free period. For a full breakdown of what to plan, see after launch: the first month and the first year.

Risks of hiring the wrong Flutter developer

Hiring the wrong Flutter developer can delay your app, inflate costs, and block access to your own product. The most common failure points are missed deadlines due to divided attention. Delays can lead to extra work and re-clarification, as one low-cost agency missed early deadlines and needed three weeks of parallel work to recover. Refusal to hand over code after work begins may occur due to unpaid invoices or disagreements. Freelancers often juggle multiple projects. This slows progress on yours. A single freelancer may lack the capacity to handle large-scale or complex app development tasks. Even a ₹20/hour team can end up costing more than a ₹35/hour team. A six-month delay can make the cheaper team more expensive, as a comparison in US dollars suggests.

Red flags include vague timelines. No written scope is another red flag. Requests for full payment upfront are also a warning. Reluctance to use your accounts or version control is another. A disagreement about money or a missed deadline may lead to problems in handing over code. To protect yourself, keep code in your own repository from day one. Use accounts under your name. Tie payments to milestones. Include a clear ownership clause in writing. Your business should not depend on a single developer’s access or goodwill. If a developer refuses to hand over code, legal action may be needed. Prevention through setup and contracts is faster and cheaper. For a full list of red flags, see the ten warning signs to avoid bad hires.

Related reading: what an API is, when a developer beats an AI builder.

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