AppMakers USA is a US-based mobile app development company that builds native iOS, native Android, and cross-platform apps from offices in Los Angeles, Santa Monica, New York, and San Diego. We have shipped 400+ apps since 2014, including work for Walmart, FREENOW, italki, and Bayut, with fixed-price, fixed-scope engagements.
Founders and product leaders vet agencies on third-party review sites before the first call. Our profiles are public, written by clients who shipped real apps with us. These are the live review counts, not a self-reported aggregate. Open any profile and read them.
Clutch verifies each review through a recorded client interview, and every one is public for you to read.
Most custom mobile app builds with AppMakers fall between $10,000 and $100,000-plus, depending on app type, platform count, and integration depth. We publish per-app-type ranges with timelines below, because guessing at cost helps no one. The discovery phase produces a fixed scope and a fixed price before any contract is signed.
These are real ranges, not anchors. The number that matters lands in the fixed sprint plan at the end of discovery. We do not work on hourly chase-the-meter contracts.
What moves a build between these ranges is rarely the screen count. It is the integration surface and the data model. An app with one external API, a single user role, and no offline requirement sits at the low end of its band. The same app with payment processing, several permission tiers, real-time sync, and an offline mode that has to resolve conflicts sits at the high end. We size the integration and data complexity during discovery, because that is where the engineering hours actually go.
Most founders who reach out have already spent hours on Clutch, DesignRush, GoodFirms, and Upwork. The listings tell you who ranks. They do not tell you who can actually build and ship your app. That only shows up in the work.
We have built at scale for Walmart on the grocery side, FREENOW across European mobility, italki for a language marketplace serving millions of learners, Bayut for UAE property search, Triller for social video, Eurosport for broadcast streaming, and Naked Insurance for South African P2P cover. Our own app, Echo Journal, runs on the same product and engineering process we give every client.
Beyond the named work, we have shipped more than 400 apps, and our team of 60-plus developers has been building from US offices since 2014. A directory cannot reproduce that. A listing can rank for a keyword. It cannot ship a working app for Walmart.
When an off-the-shelf tool falls short, we build our own. For Cybionex, a medical app, the database we needed could not encrypt data at rest, so we forked WatermelonDB, patched it with SQLCipher, and open-sourced the result.
Building a mobile app is one of the few software decisions where the platform choice, the architecture choice, and the engagement model can each independently kill a project. Our methodology starts before any of those choices get made.
The output of discovery is not a proposal full of options. It is one recommended path. One platform decision, one architecture, one sprint plan, with a fixed scope and a fixed price attached. We also hand over the assumptions we are betting on and the ones we want to test in the first sprint, so the technical risk is named before the budget is committed, not discovered halfway through the build.
Mobile app development is a platform decision before it is a feature decision. Start with the question below, then see how we build on each platform.
If your users are iOS-first, or the app lives or dies on performance, native iOS is the right call. We build in Swift and SwiftUI for direct access to the newest platform APIs, the smoothest animations, and the tightest memory control. It is the path we take for consumer brands and for apps that sit inside Fortune 500 product stacks, where a janky frame is a brand problem.
See how we build iOS →When your audience skews Android or you are shipping to a device fleet, native Android is the safe base. We build in Kotlin and Jetpack Compose, and device-fragmentation testing is part of the standard build, not an afterthought, because an app that runs clean on a current Pixel can still stutter on a three-year-old Samsung in a warehouse.
See how we build Android →When the product surface is mostly visual and both stores launch together, React Native or Flutter lets a small team move fast without building twice. We are candid about the edges. We have spent months stabilizing React Native video stacks on real projects, so if playback is core to your app we will say native is the safer base before sprint one, not after the audit.
See when cross-platform is not the right call →Native iOS builds in Swift and SwiftUI. App Store releases for consumer brands, enterprise teams, and iOS-first user bases, including apps inside Fortune 500 product stacks.
iOS development →Native Android in Kotlin and Jetpack Compose. Play Store releases for consumer apps, enterprise device fleets, and Android-first builds. Device-fragmentation testing is part of the standard build.
Android development →React Native and Flutter for teams that need a single codebase across iOS and Android. We talk through the trade-offs (performance, native module gaps, App Store review surprises) before sprint one, not after the audit.
Cross-platform development →For builds where the mobile app is one surface inside a larger product stack: web admin, internal tools, backend services. Our custom-software practice covers the build around the app.
Custom software →We choose the stack to fit the product, not the other way around. The tools below are what our team actively ships in across iOS, Android, cross-platform, backend, and AI. We name only what we use in production, not every framework that exists.
The pattern behind these choices is deliberate. We default to the platform-native language when performance or platform APIs lead, and to a shared cross-platform layer when two stores ship at once and the team needs to stay small. We adopt a newer tool only after it has earned a place in a shipped build, which is why this list is shorter than the one most agencies publish.
We have shipped 400+ apps. Browse the work by category, then open any app where it actually lives, on the App Store, Google Play, or the web.
AI built where it earns its place. Diabetes coaching, automated ultrasound, autonomous-checkout retail, and AI dog-training, each using the smallest model that clears the bar.
Matching engines, swipe stacks, and trust-and-safety, shipped across curated communities, local meet-ups, and relationship apps.
Storefronts and food commerce built so checkout holds up under load and the catalog stays fast.
Casino slots, board games, trivia, cricket, and VR, built to retain players and to scale on launch day.
HIPAA-aware health and consumer fitness, from glucose coaching and therapy to workout tracking and child wellness.
Feeds, live streaming, music communities, and real-time social maps, built to scale with the community.
Layer-1 chains, NFT marketplaces, and Web3 games, including walletless, social-login apps that hide the crypto.
Language learning, math games, LMS platforms, and edtech at school scale.
Streaming, live events, mystery games, fortune-telling, and immersive VR experiences.
Expense, payments, insurance, and trading, each built to the regulatory surface it has to clear.
Property search and management portals with listing indexes that stay fast and current.
Project management, scheduling, voice and messaging, and the internal software teams run on every day.
Every AppMakers build runs through the same five stages. The stages are named, the deliverable at each stage is named, and the exit criteria are visible to the client. We do not move from one stage to the next on a calendar date. We move when the deliverable is signed off.
The output is a one-page product brief and a list of architecture questions for the next stage. We surface the constraint underneath the brief and name the assumptions we want to test before sprint one. Exit criteria: founder and AppMakers product lead both sign off on the brief.
Senior engineers walk through the platform choice, the data model, the third-party integrations, and the post-launch maintenance profile. We deliver the sprint plan with fixed scope and fixed price. Exit criteria: signed sprint plan and signed contract.
Standups two to three times a week, milestone review every two weeks. Sprint velocity, bug rate, and client-touchpoint cadence are tracked through the build. The engineers you talk to in standup are the engineers writing the code.
App Store and Play Store submission, beta cohort, soft-launch monitoring, and the first production release. We handle store-listing copy, screenshot generation, App Store Optimization input, and the first 30 days of stability monitoring.
A continuous engagement for as long as the client wants us. Crash monitoring, OS-version compatibility, App Store policy updates, and feature roadmap execution. We do not disappear at the launch milestone.
Cross-platform frameworks like React Native and Flutter are the right choice for most products that ship on two platforms at once. They are not the right choice for everything, and we will say so before the build starts. Here is where we steer you to native.
If your app is media-heavy, with video playback at its core, native is usually the safer base. We have spent months stabilizing React Native video stacks on real projects, and the lesson held. Budget far more time for player stability than a cross-platform timeline suggests.
If your app depends on real-time augmented reality or on-device machine learning at 60 frames per second, native gives you the direct access to the camera and GPU that a cross-platform bridge cannot match without adding latency.
If your app needs heavy background processing, continuous location tracking, or deep OS integration like custom keyboards or share extensions, a cross-platform bridge adds friction at exactly the layer that matters. We have shipped these on cross-platform stacks, and we have also recommended a native rebuild when the bridge would cost more time than it saved. We will tell you which case yours looks like before sprint one.
Two things are true about how AppMakers works with AI. We use AI tools internally to ship faster, and we ship apps that have AI features inside them. Both happen, and they happen for different reasons.
Our engineers use AI-assisted coding tools as a standard part of how they work. The effect on a client engagement is a shorter sprint cycle without a change to the deliverable. We do not ship AI-generated code that a human engineer has not reviewed, and we do not bill differently because a tool helped. The AI is inside our process, not inside the contract.
When a client's product needs an AI feature (a recommendation engine, a content classifier, an LLM-powered assistant, a speech or image model, an agentic workflow), we build it. Latency budgets, model-rotation strategy, and cost-per-call economics each shape the build. We ship and maintain apps with AI components in production. The full breakdown lives on our Artificial Intelligence services page.
Tell us what you are building. We will reply with a clear architecture path, a realistic timeline, and a fixed price. If it is not the right fit, we will say so on the first call.
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