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Where can I see your previous work?
Check out our portfolio at AppMakersLA.com/portfolio
What services do you offer?
We are a Los Angeles app and web development company. As such, we offer: 1) Design for Apps, Webapps and Websites 2) Mobile App Development for iPhone Apps, Android Apps and iPad Apps & Web Development for Webapps. Each project includes full QA Services as well as a product manager.
Where are your app developers located?

Our app developers are mainly located at 1250 S Los Angeles St, Los Angeles, CA 90015, though we have other offices around the world, and we hire the best developers wherever and whenever we find them. If having engineers & designers in Los Angeles is critical to the project, we have the resources to make that happen.

How much do you charge for your services?
Our cost varies depending on the project. Please contact us for a mobile app development consulting session and we will get you an estimate + analysis pronto.
Can you build software for startups?
Yes, we consider ourselves a startup app development company, as well as an agency that builds software for already established firms.

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Mobile App Development Company

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.

400+
Apps shipped since 2014
100M+
Total users reached
$1B+
Raised by our clients
60+
Developers, 4 US offices

Rated on the platforms buyers actually check

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.

How much does it cost to build a mobile app?

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.

App type
Typical cost
Typical timeline
Informational / content app
$10,000 - $25,000
4 - 6 weeks
Cross-platform app (iOS + Android)
$25,000 - $60,000
6 - 12 weeks
E-commerce app
$40,000 - $100,000
2 - 4 months
AI / IoT / hardware-integrated app
$65,000+
4 - 8 months

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.

Why teams hire AppMakers USA

What the aggregators can't tell you

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.

The work we can show

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.

Proof you can check, at scale

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 the tools fall short, we build our own

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.

Our approach to mobile app development

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 first call is the patient one. The job is to surface the constraint underneath the question. "I want a Tinder for X" is rarely about Tinder. It is about a market hypothesis, a distribution channel, or a user behavior the founder has not said out loud yet. If we cannot reduce a product to a sentence by the end of discovery, the build has not started yet.
We do not have a house bias. We have a decision framework. Native iOS in Swift or SwiftUI when the app is iOS-first or performance-critical. Native Android in Kotlin or Jetpack Compose when the audience is Android-dominant or the deployment is Android-only. React Native or Flutter when the product surface is largely visual, two platforms ship at once, and the engineering team needs to stay small. We walk a founder through the trade-offs before the first sprint, not after.
Our senior engineers walk through what the product needs to do at scale, where the technical risk lives, and what the post-launch maintenance load looks like. The output is a sprint plan with a fixed scope and a fixed price. We do not work on hourly chase-the-meter contracts.
Our pods are sized to the work. A 30-Day MVP gets a tight three-person team. A multi-year enterprise build gets a larger pod with a dedicated product lead and US-based architecture oversight. The engineers we put on your project are the engineers you talk to in standup.

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.

Platforms we build on

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.

Choose native iOS when performance or the platform leads

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 →

Choose native Android when the audience or the fleet is Android

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 →

Choose cross-platform when two stores ship at once and the team stays small

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 →

Our mobile app development tech stack

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.

Native iOS
Native Android
Cross-platform
Backend
Data
Cloud / infra
AI / ML

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.

Explore our portfolio by category

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.

Artificial Intelligence

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.

Dating

Matching engines, swipe stacks, and trust-and-safety, shipped across curated communities, local meet-ups, and relationship apps.

E-Commerce

Storefronts and food commerce built so checkout holds up under load and the catalog stays fast.

Social Media

Feeds, live streaming, music communities, and real-time social maps, built to scale with the community.

Blockchain

Layer-1 chains, NFT marketplaces, and Web3 games, including walletless, social-login apps that hide the crypto.

Finance

Expense, payments, insurance, and trading, each built to the regulatory surface it has to clear.

Real Estate

Property search and management portals with listing indexes that stay fast and current.

How we run a mobile app build

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.

1 - 2 weeks

Discovery

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.

1 week

Architecture review

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.

2-week sprints

Build

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.

Launch

Launch

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.

Continuous

Post-launch support

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.

When cross-platform is not the right call

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.

Media and video at the core

Native recommended

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.

Real-time AR or on-device ML

Native recommended

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.

Heavy background work or deep OS integration

Native recommended

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.

AI in our process and in the apps we build

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.

01 / In our process

AI in our development process

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.

02 / In the product

AI inside the apps we build

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.

Frequently asked questions

How much does mobile app development cost with AppMakers?+
Most custom mobile app builds with AppMakers fall between $10,000 and $100,000-plus, depending on app type, platform count, and integration depth. An informational app starts near $10,000. An AI or hardware-integrated app runs higher. The discovery phase produces a fixed scope and a fixed price before any contract is signed.
How long does it take to build a mobile app?+
An informational app ships in 4 to 6 weeks. A cross-platform app runs 6 to 12 weeks. An e-commerce app runs 2 to 4 months. An AI or hardware-integrated app runs 4 to 8 months. We deliver a realistic timeline at the end of discovery, not before.
Do you build native or cross-platform apps?+
Both. We do not have a house bias, we have a decision framework. Native iOS or Android when the app is performance-critical or platform-specific. React Native or Flutter when two platforms ship together and the team needs to stay small. We walk you through the trade-offs in architecture review.
Where is AppMakers based?+
AppMakers USA has offices in Los Angeles, Santa Monica, New York, and San Diego. Our 60+ developer team ships from those four US locations, and our senior product leadership is US-based. Time-zone-aligned communication is the default for North American clients.
Who owns the code and the intellectual property?+
You do. The client owns 100 percent of the source code, the design assets, the data models, and the intellectual property. We sign IP-assignment language into every contract. There is no AppMakers lock-in on the codebase.
Do you sign NDAs before we share our idea?+
Yes. We sign a mutual NDA before discovery whenever a client wants one, and many do. Your idea, data, designs, and code stay yours. The NDA pairs with the IP-assignment language in every contract, so you own everything from the first commit forward.
Do you offer post-launch support?+
Yes, as a continuous engagement. Crash monitoring, OS-version compatibility, App Store policy updates, and feature roadmap execution. Most clients keep us on a retainer after launch. We do not disappear at the launch milestone.
Can you fix or rescue an app a previous team built?+
Yes. Our Fix Your App service is built for exactly that: a previous team's codebase, a stalled build, a stability problem at scale. We run a code audit and a gap analysis in the first week and deliver a rescue-or-rebuild recommendation with cost and timeline attached.
Do you build apps with AI features in them?+
Yes. We build AI-powered features into client apps, we ship apps that have AI at their core, and we maintain apps with AI components in production. We also use AI tools internally to shorten the build cycle. The full breakdown is on our Artificial Intelligence services page.
How do I start a project with AppMakers?+
The first step is a discovery call. It is patient and not a sales call. We listen for the constraint underneath the brief and come back with a clear path forward. Discovery produces a one-page brief, architecture review produces a fixed sprint plan and a fixed price, and the build starts from there.
Do you work with clients outside the United States?+
Yes. Our team and senior leadership are US-based, and we run builds for clients across Europe and the Middle East, including named work for FREENOW, Bayut, and italki. We align standups to the client's working hours and keep a US product lead on every engagement, so time-zone distance does not turn into a communication gap.
What happens if the scope changes mid-build?+
Scope changes go through a written change order, not a quiet addition to the invoice. When something new comes up mid-build, we price it against the fixed plan, show you the timeline impact, and you decide before we start. The original fixed scope and price hold for everything already agreed, so the bill at the end matches the bill you signed.

Start a mobile app development conversation

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.

Prefer to talk first? Book a discovery call.

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