For most startups, the right mobile strategy is narrower than the options suggest: launch on one platform (usually the one your first paying users actually use), build it cross-platform unless you have a hard technical reason to go native, and pick a partner who owns the backend and the app store process, since both will outlast the launch. That's the short version. The rest of this guide explains each of those calls, what a startup mobile build costs, and the questions that separate a real mobile partner from a portfolio of screenshots.
Three ways to put your product on a phone, each with a real tradeoff behind it.
Native apps are built separately for iOS (Swift) and Android (Kotlin). You get the best performance, the deepest access to device features, and the highest cost, because you're effectively building the product twice and maintaining two codebases forever.
Cross-platform apps use frameworks like Flutter or React Native to ship one codebase to both stores. For most startup products (forms, feeds, dashboards, payments, messaging) users can't tell the difference, and you build and maintain one thing. This is the default we recommend for a first mobile product, and the exceptions are specific: heavy real-time graphics, demanding hardware integrations, or platform features the frameworks don't reach cleanly.
Web apps skip the stores entirely and run in the browser. If your product doesn't need push notifications, offline use, or device hardware, a well-built responsive web app is cheaper, faster to iterate, and invisible to app store review. Plenty of "we need an app" projects are actually this. It's worth an honest conversation before anyone writes mobile code, and it's the kind of scoping call a Discovery settles with evidence instead of preference.
Launching on both platforms simultaneously doubles your testing surface, your review risk, and a good share of your budget before a single stranger has used the product. Unless your market forces it, sequence instead.
Pick the first platform by looking at your actual audience. iOS skews toward US consumer and B2B professional audiences and higher per-user spending. Android dominates global reach and many field-workforce and logistics use cases. Your own early adopters are the tiebreaker: if your waitlist is 80 percent iPhone, that argument is over. A cross-platform codebase keeps the second platform cheap to add once the first one proves the product, which is the quiet, practical argument for cross-platform even if you only ever ship one store on day one.
If you're still deciding what belongs in that first release at all, our founder's guide to scoping an MVP is the place to start. The scoping logic is the same on mobile, and the penalty for overbuilding is higher because every extra feature ships through app review twice.
Two other decisions ride along with the platform call. First, distribution: consumer products live or die by store search and ratings, while B2B products often ship through private distribution or direct installs, which changes how much store polish the first release needs. Second, analytics: decide before launch which two or three behaviors define success, and instrument them from day one. The platform you launch second should be a data-driven decision, and that only works if the first launch produces data worth reading.
A focused, MVP-scale product typically runs $25k to $75k, and mobile sits inside that same range. Our custom software cost guide breaks down the full ranges and the drivers. On mobile, the drivers that move the number most are:
The honest way to get from ranges to a number is a scoped review. Our Discovery is a fixed price, runs 2 to 3 weeks, and ends with a requirements document, API recommendations, development considerations, and line-item pricing with timelines, deliverables you can take to any team.
The general rules for vetting any dev shop apply here, and our guide to choosing a software development partner covers them. Mobile adds five checks of its own.
One structural point worth asking about: whether strategy, design, and engineering sit on one team. Handoffs between a design agency and a separate dev shop are where mobile products lose months.
We see the same handful of mistakes in rescue conversations, so it's cheaper to name them here than to fix them later.
Every one of these is a scoping decision, which is why they belong on paper before development starts, priced and sequenced, rather than discovered mid-build.
We've delivered 100+ products since 2017 across web and mobile, and mobile projects follow the same commercialization path as everything else we build: scope on paper first, price it line by line, then build against that scope with one in-house team covering strategy, design, and engineering. You own the code, the repositories, and both store accounts from day one. Kickoff lands 7 to 10 business days after signing, and the first deliverable is the Discovery document set, so the decision to proceed to development is made with real numbers in hand.
Weighing iOS, Android, or both for your first build? A fixed price Discovery settles the platform question with evidence and ends in line-item pricing you can take anywhere. Book a Discovery or get in touch and tell us what you're building.
Written by the team at Iron Forge Development, a U.S.-based software commercialization firm that has helped launch 100+ products from idea to market.
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