Mobile app development for iOS and Android

Order a mobile app in the USA

Mobile app development for iOS and Android at Asvir covers the full cycle from idea to publication in the App Store and Google Play: discovery, design, back-end, admin panel, testing on real devices and push notifications. In most projects we use Flutter, where one codebase produces two apps with near-native speed, so the second platform costs far less than building it separately.

Since 2018 we have launched more than 115 projects across 12 business niches. We are a Kyiv-based team working remotely with clients worldwide, under an official contract and with a 12-month warranty after launch. A mobile app MVP typically reaches the stores in 8 weeks or more, depending on the feature set.

How much a mobile app costs

Mobile app pricing is set by agreement and depends mainly on the number of screens, integrations and the complexity of the admin panel. A loyalty app with a rewards card and promotions sits at one budget level, while a delivery service with customer and courier apps plus a dispatcher panel sits at a very different one. With Flutter you get iOS and Android from a single build, and native development for each platform is estimated separately.

To get an accurate estimate, it helps to answer a few questions up front:

• who your users are and what single action matters most to them;
• whether you need payments via Apple Pay / Google Pay, Stripe or PayPal;
• what the app must connect to: your CRM, ERP, existing website or web service;
• which device features you need, such as geolocation, offline mode, Face ID / Touch ID or a QR scanner.

Our estimate is free: share your idea and we will propose the technology, MVP features and budget.

Flutter or native

Flutter is a cross-platform framework from Google. One codebase runs on iOS and Android with the same design and near-native performance. The benefits are clear: you save budget on the second platform, get to market faster and need one support team instead of two. There are limits too: some device-specific features require native modules, but for store apps, booking services, loyalty programs and enterprise apps that is rarely a blocker.

Native development, with Swift for iOS and Kotlin for Android, is worth it when the product works closely with device hardware or needs maximum performance. And if a convenient mobile experience without the app stores is enough, consider a PWA or a custom web app; you can add a mobile client on the same back-end later.

How to publish in the App Store and Google Play

We handle publication for you. The process has five stages: discovery (goals, audience, MVP features); UX/UI design, a prototype that follows iOS and Android guidelines, created by our UI/UX design team; development of the app, back-end and admin panel; testing on real devices with a beta version; and finally publication with an ASO-optimized store listing.

Apps are most often rejected because of an incomplete privacy policy, unclear permission requests or features that do not work in the review account. That is why, before submitting, we check compliance with both stores' guidelines and prepare screenshots, descriptions and keywords, so the app not only passes review but can also be found in store search.

Support after release

Publication is not the end of the work. New versions of iOS and Android come out, users leave reviews, and analytics shows where people drop off. A 12-month warranty applies after launch, and after that we can keep supporting the product: updating it for new OS versions, adding features and growing the back-end.

A popular next step is an in-app AI assistant that answers customer questions and helps people place an order or book an appointment. We design it together with our chatbot and AI development team, so the bot and the app share the same data.

Why Asvir

You get one team for the whole cycle, from design to store publication and ongoing support, plus an official contract and a 12-month warranty. Tell us about your app idea in the form below, and we will estimate it for free and suggest a realistic MVP plan.