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:: AI services / AI-powered app development

An AI app development company for apps people keep using

We design and build mobile and web apps with AI features users notice: an assistant that knows their account, search that understands what they mean, a feed that learns what they like. Our team has shipped 350+ web and mobile projects, and AI is now part of most of them.

iOS, Android and web

Design to App Store launch

On-device and cloud AI

:: What we do

AI features we build into apps

We add AI where it saves the user time, not because it is fashionable.

01

In-app AI assistants

Chat or voice assistants that know the user’s data and can complete tasks inside the app.

02

Smart search

Search that understands intent and synonyms, across products, content or records.

03

Personalisation

Feeds, offers and reminders that adapt to each user’s behaviour.

04

Camera and image features

Scan documents, recognise products and check photos with on-device or cloud vision models.

05

Voice and speech

Dictation, voice commands and transcription in many languages.

06

Writing and summary tools

Help users draft messages, posts and notes, or summarise long content in a tap.

:: Step by step

How to build an AI-powered app, step by step

An AI app is still an app first. People judge it on speed, design and reliability, then on how clever it is. This is the order we build in.

01

Pick the moment AI helps

Find the step in the user’s day where AI removes real effort, such as typing, searching or deciding. One feature people use daily beats five they try once.

02

Choose on-device or cloud AI

On-device models are fast, private and work offline. Cloud models are more capable. Many apps use both, deciding per feature.

03

Design for uncertain answers

Show sources, let users edit or undo what the AI did, and design screens for slow responses and wrong answers, not just the happy path.

04

Prototype the AI feature first

Test the AI part with real inputs before building the full app. If it can’t reach the quality bar in a prototype, the rest of the app won’t save it.

05

Build the app and backend

Screens, accounts, payments, APIs, admin panel and the AI service, built in Flutter, React Native or native code depending on the app’s needs.

06

Control cost and privacy

Rate limits, caching and cheaper models where they pass the tests, plus clear consent and data handling that meets App Store and Play Store rules.

07

Launch, measure and iterate

Release to testers, then the stores. Track how often people use the AI feature, where they correct it and what it costs per user.

:: How it works

How we build AI-powered apps

One team handles design, mobile, backend and AI, so the AI feels like part of the app.

01

Shape the product

User research, the core flows and where AI genuinely helps. Clickable designs before code.

02

Build the MVP

Native or cross-platform app, backend and the first AI feature, in two-week sprints.

03

Test with users

Beta testing on real devices, AI quality checks and performance tuning.

04

Launch and grow

App Store and Google Play release, analytics, and new AI features based on how people use the app.

:: Cost and timeline

How much does it cost to build an AI app?

Typical prices for our app projects, based on a senior team at $25 to $35 an hour. For a quick estimate for your own idea, try our app cost calculator, linked below.

AI feature in an existing app

$5k – $20k

4 to 8 weeks

One AI feature such as an assistant, smart search or photo check, added to an app you already have.

AI-powered MVP

$25k – $60k

3 to 5 months

A new iOS and Android or web app with design, backend, admin panel and one or two core AI features.

Full AI product

$60k – $150k+

5 to 9 months

Several AI features, on-device and cloud models, integrations, analytics and scale for a large user base.

What it costs to run

Cloud AI is billed per use, so cost grows with active users. For most apps it is a few cents to a few dimes per active user per month. On-device features cost nothing per use. We model this with you before build so pricing and margins hold up.

What moves the price

Platforms: iOS, Android, web or all three

Number and complexity of AI features

On-device models versus cloud APIs

Backend, admin panel and integrations

Design depth and number of screens

:: App cost calculator

Estimate your AI app before you call us

Pick platforms, features and AI options and see a price range, timeline and team size in two minutes. No email needed.

Estimate your app cost

:: Before you start

Questions to answer before you build an AI app

Teams that can answer these clearly get a better app, a tighter quote and fewer surprises after launch.

Have answers to

Which task the AI takes off the user’s hands

What a good answer looks like, with examples

Which data the app may use, and with what consent

Who pays for AI usage: you, the user or a plan tier

How users fix or report a wrong answer

What success looks like 90 days after launch

Common reasons AI apps disappoint

AI added because competitors have it

Slow responses with no loading design

Usage costs that grow faster than revenue

No way to undo what the AI did

Privacy questions left until store review

:: Why Sterling

Why build your AI app with us

350+ web and mobile projects delivered since 2019

Design, mobile, backend and AI in one team

On-device AI where privacy or speed matters

AI running costs estimated before launch

Apps live in the USA, Europe, Israel, the Middle East and Africa

:: Tools we use

Swift

Kotlin

Flutter

React Native

React

Next.js

Node.js

Python

Core ML

TensorFlow Lite

OpenAI

Claude

Firebase

AWS

4.9

Average rating on Clutch · 350+ projects since 2019

:: Questions

Questions about AI apps

How much does AI app development cost?

How long does it take to build an AI app?

Native or cross-platform?

Can AI run on the phone instead of the cloud?

Do you also build the backend and admin panel?

How do you build an AI-powered app?

Can you add AI to our existing app?

What does AI cost per user each month?

Will the App Store and Google Play accept an AI app?

Which AI models work on the phone?

How can I estimate the cost of my app?

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Send us your brief. We’ll help turn it into reality

A senior engineer replies within one business day with questions or a first plan: approach, team, timeline and estimate.

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