Last updated: 18/07/2026
The short answer
In 2026 a serious studio will offer you one of three approaches: native (a separate Swift app for iOS and a Kotlin app for Android), or one of two mainstream cross-platform stacks — Flutter or React Native — that build both platforms from one codebase. There is no universally "best" option; there is only the best fit for your app. The useful way to decide is to ignore the marketing and ask what each option actually is, who stands behind it, and what your app needs from it.
This guide answers exactly that. Every technical fact below is taken from the framework's own official page and verified today, so you can quote it back to any vendor: Flutter is Google's, written in Dart, currently Flutter 3.44; React Native is Meta's, written in JavaScript/TypeScript, currently version 0.86.0. Then we map common app types to a recommended stack, and — most importantly for the budget conversation — show why the stack you pick usually does not change which price tier your quote lands in. Scope does that; the stack is a recommendation your studio should justify, not a decision you must make before you can get a number.
Why the stack decision matters to a non-technical buyer
"What should we build it in?" is the wrong first question — the right first questions are who the app is for and what it must do. But once you have decided to build, the stack is not a detail you can safely ignore, because it quietly sets three things you will live with for years: how many codebases your team maintains (one shared codebase, or two native ones), who you can hire to work on it (Dart, JavaScript, or Swift-and-Kotlin specialists), and how a future change reaches both app stores (once, or twice).
The good news is that you do not need to make this call yourself. Your job is to describe the app honestly — its journeys, its hardware needs, its performance expectations — and then hold the vendor to explaining why they recommend a stack in plain terms. A studio that cannot justify its choice against your specific app is choosing for its own convenience, not yours.
The three stacks you will actually be offered in 2026
Below are the three approaches, described with facts pulled from each project's own site today. Notice that the differences are concrete — who maintains it, what language it uses, how it draws the screen — not vague claims of speed.
| Stack | Maintained by | Language | Current version | How it renders the UI | Typical best fit |
|---|---|---|---|---|---|
| Native (iOS + Android) | Apple (Swift) & Google (Kotlin) | Swift + Kotlin | Platform SDKs (per-OS) | Uses each platform's own UI toolkit directly. | Hardware-heavy, graphics-intensive or platform-specific apps. |
| Flutter | Dart | Flutter 3.44 (BSD-3-Clause) | Draws its own UI (Impeller engine); "single codebase: mobile, web, desktop". | Design-consistent apps that must look identical across platforms. | |
| React Native | Meta | JavaScript / TypeScript | 0.86.0 (MIT); New Architecture on by default | Renders "to native platform UI" — real native components. | Teams with web/React skills; content and transactional apps. |
A fourth option, Kotlin Multiplatform from JetBrains, is worth knowing about: it shares business logic across platforms, and its UI layer (Compose Multiplatform) is now stable for Android, iOS and desktop, with the web target currently in Beta. It is a strong choice when you want to share logic but keep some platform-specific UI — but for most first apps the decision is native vs Flutter vs React Native.
What the table deliberately does not contain is a "which is fastest" column. Framework performance in the abstract is close enough in 2026 that, for the vast majority of business apps, it will not be what makes or breaks your product — how well your specific app is built matters far more than which of these three you chose.
How to choose: app type to recommended stack
The honest way to pick is to start from your app, not from a favourite framework. The mapping below is a starting point for the conversation — the kind of reasoning a studio should walk you through — not a rule that overrides a proper scoping discussion.
| If your app is… | Leans toward | Why |
|---|---|---|
| A content, booking or transactional app (most business apps) | Cross-platform (Flutter or React Native) | One codebase reaches both stores; faster and cheaper to build and maintain than two native apps. |
| Design-led, must look pixel-identical on iOS and Android | Flutter | Flutter draws its own UI, so the same widgets render the same way on every platform. |
| Built by a team that already knows React / web | React Native | Reuses JavaScript/TypeScript and React skills; renders real native components. |
| Heavy on device hardware, AR, high-end games or platform-specific features | Native (Swift + Kotlin) | Direct access to each platform's newest APIs and best performance headroom. |
| One platform only at launch (e.g. iOS-first pilot) | Native or cross-platform | If only one OS matters now, native is viable; cross-platform keeps the second store cheap to add later. |
If two options look equally reasonable for your app, that is normal — and it is a good sign, because it means the decision is low-stakes and can be settled on the strength of your team, your timeline and your vendor's experience rather than on a coin-flip about frameworks.
What the stack changes — and what it does not
Buyers often assume the tech stack is the biggest lever on price. It is not. The stack shapes how the app is built and maintained, but what your quote costs is driven by scope — the number of roles, journeys, integrations and compliance requirements in your brief. The table below separates the two so you can keep the budget conversation on the things that actually move it.
| The stack changes… | The stack does NOT change… |
|---|---|
| Whether your team maintains one shared codebase or two native ones. | The price tier your project lands in — that is set by scope (roles, journeys, integrations, compliance). |
| Which developer skills you hire or contract for (Dart, JavaScript/TypeScript, or Swift & Kotlin). | The App Store and Play Store account fees, which are the same regardless of stack. |
| How a future feature reaches both platforms — once from shared code, or twice natively. | The need for a maintenance budget after launch (Namtech: from 15% of build cost per year). |
This is why, at Namtech, the stack does not change which tier you fall into: our published starting points — Starter from SGD 20,000 (typically 8–12 weeks), Business from SGD 38,000 (typically 12–20 weeks) and Enterprise from SGD 90,000 — describe the size and complexity of the build, not the language it is written in. A three-role app with payments and an ERP integration is a Business build whether it is Flutter or React Native.
The running costs are the same either way
One reassuring fact when you are weighing stacks: the recurring platform costs do not depend on your choice at all. Every published app, native or cross-platform, pays the same store fees:
- Apple Developer Program — 99 USD per membership year to publish on the App Store (Apple's published fee).
- Google Play — a US$25 one-time registration fee for a developer account (Google's published fee).
- Maintenance and support — at Namtech this starts at 15% of build cost per year, covering monitoring, OS-version updates, security patches and priority support; hosting and third-party services are billed at cost.
So if a vendor tells you one stack will be dramatically cheaper to run, ask them to show the line: the store fees are fixed, and the main ongoing difference is maintenance effort, which tracks how much code there is to keep current — usually a point in favour of a single shared codebase.
Questions to ask the vendor about the stack
- "Why this stack for our app specifically?" A good answer references your journeys, hardware needs and timeline — not the studio's habits.
- "Who can maintain it after you?" The stack determines your future hiring pool; make sure you are not locked into a niche only they can support.
- "What does a change cost on both platforms?" This surfaces whether you are effectively paying once (shared codebase) or twice (native).
- "Where does native code still get written?" Even cross-platform apps sometimes drop into Swift or Kotlin for a specific feature; an honest vendor will tell you where.
- "Does the stack change our quote?" For most apps it should not — the tier follows scope. If it does, ask which part of the build the stack actually affects.
How Namtech recommends a stack
At Namtech the stack is an output of scoping, not a prerequisite for it. Every project runs the same six steps — Discover, Design, Build, Test, Launch and Support — with one project manager owning your project throughout. During Discover we take your requirements into a single scoping call, recommend a stack, and explain in plain language why it fits your app — then hold you to a fixed quote against our published tiers.
If you are still deciding between building one app or two, our companion guide on native vs cross-platform development covers the higher-level trade-off; this article is about which specific stack to pick once you have chosen to go cross-platform. Whichever way you lean, you do not need to settle the stack before you talk to us — book a scoping call and we will recommend one, or start from the tiers on our pricing page.
Pick the stack that fits your app, not the one that is trending — because in 2026 the framework rarely decides whether your app succeeds, but the scope you defined and the team you chose almost always do.