App Development | Jaya Purohit · July 22, 2026 · 11 min read How long does it take to build an app? If you’ve asked three different developers this question, you’ve probably gotten three different answers: ‘8 weeks,’ ‘6 months,’ ‘depends.’ All three can be true at once, because ‘build an app’ describes projects that range from a weekend prototype to a multi-year platform. How Long Does It Take to Build an App? Quick Answer App Type Typical Timeline Simple App 6 – 10 weeks MVP 8 – 12 weeks Marketplace / Multi-Sided App 3 – 5 months Enterprise Platform 4 – 9 months These ranges assume a properly scoped project with a clear feature list. The rest of this guide breaks down exactly what moves a project toward the low or high end of its range. Why App Timelines Are So Different The same question: “how long to build an app?” can reasonably mean a 3-screen MVP with no backend, or a multi-role platform handling real-time data across thousands of users. Before any timeline means anything, it needs to be attached to specifics: how many core features, how many platforms (iOS, Android, or both), whether there’s a backend and how complex it is, how many third-party integrations (payments, maps, SMS, etc.) are involved, and whether the app needs to meet any compliance requirements (HIPAA for healthcare, PCI DSS for payments, and so on). Skipping this step is why so many timeline estimates online are useless, they’re answering a different question than the one you’re actually asking. The goal of this guide is to give you enough structure that you can place your own project on the timeline yourself, roughly, before you even talk to a development team. What Affects App Development Time? Beyond the feature list itself, a handful of factors consistently move a project’s actual timeline away from its estimate: team experience and size, how clearly requirements are defined before development starts, how many stakeholders need to approve decisions along the way, and how much of the work depends on third-party systems outside your team’s control. Two projects with an identical feature list can land months apart in real delivery time depending on these factors alone. How AI Has Changed Software Development AI tools genuinely speed up certain parts of building software, scaffolding boilerplate code, generating first-draft UI components, writing repetitive CRUD logic, and catching some bugs earlier in the process. This is real, not hype. What AI doesn’t meaningfully speed up: architecture decisions, security review, integration debugging (getting your payment gateway, your maps API, and your backend to actually work together reliably under real conditions), and QA against real devices and real user behavior. These are the parts of a project that require judgment, not just code generation and they were always a larger share of total project time than the actual typing of code. In practice, this means AI can shrink the coding portion of a timeline, but coding was never the majority of what determines how long a real project takes. Timelines have compressed at the margins, a project that once took 12 weeks might now take 10 rather than collapsing entirely, despite some of the more breathless claims currently circulating about AI making development “instant.” Typical Timeline for Every Stage Discovery & Scoping (1-2 weeks): Defining the actual business goal, target users, core features, and technical requirements. This stage is frequently rushed or skipped by less careful teams, which is also the single biggest predictor of a project running over time and budget later. Architecture & Design (2-4 weeks): Tech stack decisions, system architecture, UI/UX design, and interactive prototyping. Decisions made here are expensive to reverse once development starts. Development (the bulk of the timeline): Scales directly with feature complexity, covered in detail below. QA & Real Device Testing (1-3 weeks): Often running in parallel with late-stage development, testing across real device and OS combinations, not just the newest flagship phone. Launch & App Store Submission (1-2 weeks, plus review time): Google Play review is typically fast; Apple’s review process can add several days of unpredictable delay. Timeline by Project Size and Stage Stage Small App Startup App Enterprise Platform Discovery 1 week 2 weeks 3 weeks Design 1–2 weeks 3 weeks 4–6 weeks Development 4–6 weeks 8–12 weeks 16–28 weeks QA 1 week 2 weeks 3–4 weeks Launch 2 days 1 week 2 weeks Every successful app follows a structured development lifecycle before reaching users. Not sure where your project falls on this timeline? Every project is different, get a real, scoped timeline for your specific app, not a generic estimate. Get a Free Scoping Call → MVP Timeline A properly scoped MVP core features only, single platform or cross-platform via Flutter/React Native, minimal backend typically takes 8-12 weeks. This assumes you’re testing one core hypothesis, not building a feature-complete product. If your “MVP” feature list has more than 5-6 core features, it’s likely not an MVP anymore that’s the single most common reason MVP timelines blow past this window. Enterprise App Timeline A full-featured, multi-role platform real-time data, multiple user types (customer, admin, operator), several third-party integrations, and compliance requirements typically runs 4-9 months. Freight Country, for example, involved dispatch workflows, multi-role visibility across shippers, carriers, and brokers, and real-time tracking infrastructure scope that genuinely needs months, not weeks, done properly. Feature Complexity vs Timeline Some features add disproportionate time relative to how simple they sound on a feature list: Authentication (sign up, login, password reset, social login): 2-3 weeks alone. What looks like “just a login screen” involves password security, session management, social OAuth integrations, and account recovery edge cases. Payment integration (Stripe, Razorpay, etc.): 2-3 weeks, more with multiple payment methods, currencies, or subscription billing layered in. Real-time features (chat, live tracking, live order updates): significantly more than they appear. A chat feature isn’t just sending messages it’s delivery receipts, read states, media sharing, push notifications, and offline message queuing. Admin dashboards: often underestimated. A “simple admin panel” is frequently its own mini-application, with its own permissions logic and reporting views. Search and filtering: looks trivial in a wireframe, but real search with multiple filters or large datasets often needs dedicated engineering time. Feature complexity is one of the biggest factors influencing development timelines. Native vs Flutter vs React Native – Does Cross-Platform Save Time? Native development (Swift for iOS, Kotlin for Android, built separately) gives the best performance and full platform-specific API access, but means building and maintaining two codebases in parallel extending both timeline and long-term cost for dual-platform launches. Cross-platform frameworks like Flutter or React Native the approach used for Doorserve let you build once and ship to both platforms, typically cutting time-to-market by 30-40% with near-native performance for most use cases. The right choice depends on your specific feature requirements. For a full comparison, see our native vs. cross-platform breakdown. Why Do App Projects Get Delayed? The features on the spec sheet rarely cause the most delay, it’s usually these: Scope creep: new requirements added mid-build without adjusting the timeline or budget to match. Late or unclear feedback loops: waiting weeks for client sign-off on designs or builds. Third-party API limitations discovered only after development starts, rather than during scoping. Underestimated “simple” features: the word “simple” is often where hidden weeks live. App Store review delays: outside anyone’s direct control, worth budgeting real buffer time for. Team changes mid-project: a developer leaving partway through, without proper documentation and source code ownership already in place, can cost weeks of onboarding a replacement from scratch. Before Deorwine, CashCry ran on a readymade, templated app, the kind of quick-start solution many early founders reach for and saw steady but modest traction, around 500 to 1,000 downloads. In 2019, Deorwine was brought in to design and redevelop the platform from scratch, replacing the templated foundation with custom architecture built for real scale. That redevelopment took just 3 months. Deorwine has continued working with CashCry since, building out the integrations and vendor partnerships behind its 250+ brand partnerships as the platform grew. Today, CashCry is an independently verified fintech platform (PitchBook, 2026) generating ₹19+ crore in FY24-25 revenue, with 1,170% year-over-year growth and a ₹100+ crore valuation. It’s a concrete illustration of a pattern worth knowing before choosing a readymade solution to save time: the speed of a templated build is real, but so is the ceiling it puts on what the product can become a 3-month custom rebuild took longer upfront than a template, but it’s what actually let years of continued growth and partnership integrations happen on a foundation solid enough to build on. Can AI Build an Entire App? AI accelerates development, but experienced engineers remain essential for planning, architecture, integrations, and quality assurance. Not yet, not reliably, for anything beyond a genuinely trivial project. AI tools can generate a working prototype fast, but “working in a demo” and “production-ready, secure, and maintainable at scale” are different bars. That gap is exactly where senior engineering judgment still matters: reviewing AI-generated code for security vulnerabilities, making architecture decisions AI can’t reason about in the context of your long-term business needs, and debugging integration issues that only surface under real usage. Treat AI as a real accelerant for parts of the process, not a replacement for the process itself. Timeline Examples from Real Projects Doorserve (on-demand laundry platform, cross-platform via Flutter) launched in 2-3 months a clear example of how a well-scoped cross-platform MVP can move fast when the feature set stays disciplined. Freight Country (logistics/TMS platform), by contrast, reflects the other end of the spectrum: a multi-role dispatch and tracking system connecting shippers, carriers, and brokers, built and refined over a longer-term engagement the kind of project where scope legitimately grows as dispatch workflows, carrier network features, and tracking infrastructure mature over time rather than shipping complete on day one. CashCry (fintech platform) scaled to a valuation exceeding ₹100+ crore following development architecture decisions made early directly affected what was possible to build on top of later. How We Reduce Development Time at Deorwine We don’t compress timelines by cutting QA or skipping architecture both shortcuts just move the missing work later, usually at a higher cost. Instead: weekly working builds (so problems surface in week three, not at final delivery), direct access to the actual engineer building your project, and PERT-based estimation best-case, worst-case, and most-likely scenarios instead of a single guessed number. Frequently Asked Questions How long does it take to build a simple app? A simple, single-feature app with minimal backend can take 6-10 weeks. How long does an MVP take? Typically 8-12 weeks for a properly scoped MVP with 3-6 core features. Can one developer build an app? Yes, for simple apps with limited scope but timelines extend significantly, and a solo developer creates a single point of failure if they become unavailable mid-project. How long does it take to build an Android app? Similar to overall app timelines 6-10 weeks for simple apps, 8-12 weeks for an MVP though native Android-specific work (Kotlin, Jetpack Compose) may run slightly longer than cross-platform equivalents for the same feature set. How long does it take to build an iPhone app? Comparable to Android timelines, with the added factor of Apple’s App Store review process, which can add several days of unpredictable delay after development is complete. Does Flutter reduce development time? Yes, building one codebase for both iOS and Android instead of two typically cuts time-to-market by 30-40%. Does React Native save time? Yes, for the same reason as Flutter a shared codebase across platforms, with near-native performance for most use cases. How long does backend development take? Backend timelines scale with data complexity and integrations rather than screen count a simple REST API might take 2-3 weeks, while a backend handling real-time features, multiple integrations, and complex business logic can take significantly longer. Does using AI tools significantly shorten development time? It shortens certain parts boilerplate code, first-draft components but not architecture, security review, or integration debugging, which remain the larger time drivers on real projects. How long does App Store/Google Play review take? Google Play review is typically fast (hours to a couple of days). Apple’s App Store review can take several days and occasionally longer if issues are flagged. Before You Request a Quote A timeline estimate is only as good as the scope it’s based on. Before you get a number from any development team, make sure you can answer: what’s the one core feature your product can’t work without, which platforms do you actually need at launch, which third-party integrations are non-negotiable, and what’s your real deadline versus your ideal one. A team that pushes back on a vague answer to any of these is doing you a favor a fast, confident estimate built on an unscoped project is usually wrong in one direction or the other. Read More: Do your product needs AI integration There isn’t a single timeline that fits every app. The right estimate depends on your features, platforms, integrations, and long-term goals which is why any answer given before those specifics are known is really just a guess wearing a confident tone. AI can speed up parts of development, but careful planning, experienced engineers, and thorough testing remain the biggest factors in delivering something that actually works. If you’re planning an app, invest time in defining the scope before asking for timelines that’s the fastest way to get an estimate you can actually trust. Ready to Build an App That Actually Ships on Time? Talk to the engineers who’d actually build it, not just a sales team. Book a Free Scoping Call → Share Facebook Twitter LinkedIn The Author Jaya Purohit Co-Founder, Deorwine Infotech Jaya Purohit is the Co - Founder of Deorwine Infotech, focused on helping businesses turn ideas into scalable, production-ready technology solutions. She emphasizes delivery certainty, structured processes, and building teams that operate as true partners. Growth, branding, and the person clients trust to get things done.