01 iOS

iOS app development company for iPhone and iPad

Tailwebs is an iOS app development company in Bengaluru that designs, builds and launches apps for iPhone and iPad and takes them through App Store review. Founded in 2015, we have delivered 200+ projects, and we publish and run three apps of our own on the App Store. Every iOS build starts with the product plan, not the screens.

Talk to us about your iOS appOur own apps on the App Store
Illustration: a paper app plan unrolling into the WAC payslip screen on a phone

02 When it fits

When a native iOS build fits

A native iOS build fits when the app depends on Apple-only features or in-app subscriptions, or when most of the people you are building for carry an iPhone or iPad.

Project traits

  1. Your target users are mainly on iPhone or iPad. For example, a consumer app launching in the UK or the US first.
  2. Revenue depends on in-app purchases or subscriptions. For example, a premium or subscription app, where Apple's purchase rules shape the paywall from the first design.
  3. The product is built around Apple-only capabilities. Apple Pay, Sign in with Apple, health data or widgets are part of what the app does: see the capabilities we plan around.
  4. The app is for iPad in the field. For example, sales teams, clinics or classrooms that work from a tablet all day.
  5. You already have the app on Android and need an iOS version that feels native.

03 Apple features

Apple capabilities we plan around

For many products these features are the reason to build natively, and we have shipped each of them. Every one comes with rules the app has to follow, so each is decided at the start of the project.

  1. Apple Pay and in-app purchases

    What it lets the app do
    Card payments for physical goods and services with Apple Pay, and digital content or subscriptions sold through in-app purchase.
    Decided early
    Which purchases must go through Apple's system. Digital goods and subscriptions generally do; physical goods and services generally don't.

  2. Sign in with Apple

    What it lets the app do
    Sign-up in one tap, with the option for users to hide their email address.
    Decided early
    Whether it is required: an app that offers other social logins generally has to offer it too.

  3. HealthKit

    What it lets the app do
    Reading and writing health data, such as steps, workouts or heart rate, with the user's permission.
    Decided early
    The consent screens, the privacy wording and what data leaves the phone. Building for health care? See healthcare app development.

  4. Widgets and notifications

    What it lets the app do
    The app's key information on the home screen, the lock screen and in notifications, without opening the app.
    Decided early
    What shows outside the app, how often it refreshes, and what the user is asked to allow.

  5. Camera, NFC and location

    What it lets the app do
    Scanning documents and codes with the camera, reading NFC tags, and tracking location in the background.
    Decided early
    Which permissions the app asks for, when it asks, and the reason it shows the user, which Apple checks in review.

  6. Apple Watch

    What it lets the app do
    A companion app on the wrist, for glanceable updates, quick actions and health data.
    Decided early
    What the watch does on its own and what it leaves to the phone. See wearable app development.

04 App Store review

Getting through App Store review

Apple reviews every app and every update before it reaches the App Store, and most rejections come from a short list of known causes. These six are worth checking before the first submission.

Common reasons for rejection

  1. Privacy details that don't match the app

    The privacy labels on the listing, and the privacy manifest for the app and the SDKs inside it, must describe the data the app actually collects.

  2. No way to delete an account

    An app that lets people sign up must also let them delete their account from inside the app.

  3. Digital goods sold outside Apple's system

    Digital content and subscriptions generally have to be sold through in-app purchase, under the purchase rules in the App Review Guidelines.

  4. A reviewer who can't get in

    If the app needs a login, the reviewer needs a working demo account, and notes on anything that isn't obvious, such as a feature that only appears at a certain location.

  5. A build no one has tested

    Crashes and broken flows are rejected. TestFlight, Apple's beta-testing service, puts a build in front of testers before it goes to review.

  6. An incomplete listing

    The description, screenshots and support details must be complete and match what the app does today.

Before the first submission we check all six, and run a round of TestFlight beta testing.

If Apple rejects the build

  1. Read the guideline cited

    Apple's message names the guideline the app missed, and that sets what has to change.

  2. Fix it, or reply

    Change the build or the listing, or answer the reviewer in App Store Connect when the app already meets the rule.

  3. Resubmit

    The fixed build, or the reply, goes back to the reviewer.

Back into review

Apple’s current rules are in its App Review Guidelines.

We submit and run your app from your own App Store Connect account where possible. Our own apps are live on the App Store, so each has been through this review. Have an app that keeps being rejected? Tell us what the reviewer said.

05 How we build

iOS app development services: how we build and keep up with each iOS release

A CTO asks two things together: how the app is built, and whether it will still work after Apple's next release.

  1. 01

    Language and UI framework

    New apps are written in Swift, with SwiftUI for the interface.

  2. 02

    Testing

    Releases are tested with unit tests, UI tests and on real devices before they ship.

  3. 03

    Apple's interface conventions

    Navigation, text sizes, Dark Mode and the accessibility settings follow Apple's Human Interface Guidelines, so the app feels at home on an iPhone and behaves the way its users expect.

  4. 04

    Each year's iOS release

    Apple publishes beta versions of the next iOS months before it ships. Each summer we test the app on them and fix what has changed before users install the update.

  5. 05

    The SDK Apple requires

    From a date Apple announces each year, new apps and updates must be built with a recent version of Apple's tools and SDK, so an app that is not moved across cannot ship its next update. The current requirement and its date are on Apple's upcoming requirements page.

Need the whole app planned, with its backend, admin panel and design? See mobile app development.

Building for Android as well? Google's side is on Android app development.

06 Shipped

Our iPhone app development work on the App Store

iPhone and iPad apps for clients, including WAC's native iPhone app, and three apps we publish and run ourselves.

  • 01/06

    WAC

    WAC's native iPhone app, wac – shift & earnings tracker

    4.8★ from 5,780 ratings on the UK App Store

    A full Tailwebs team, from idea to launch. The rebuilt app is live and scaling, and WAC has raised investment.

  • 02/06

    Rumors

    An iPad e-catalogue for a fine-fabric manufacturer and stockist

    Tailwebs was the first to bring offline 3D rendering to an iPad. We also built their backend portal and order management system.

  • 03/06

    York Fabrics

    iPad apps with ERP integration, for a fine-fabrics business in Dubai

  • 04/06

    Fincurry

    Our own family expense app, built in Flutter

    4.9★ on the App Store
    Per store listing, checked 2026-10-16

    On the App Store.

  • 05/06

    ApnaStaff

    Our own attendance and salary app for household staff, built in Flutter

    4.8★ from 37 ratings on the App Store
    Per store listing, checked 2026-10-16

    On the App Store.

  • 06/06

    Kaipo

    Our own conversational AI app, built in React Native

    On the App Store.

All our own products are on TailApps.

Hiring instead?

Need an iOS developer in your team? Hire mobile app developers

07 FAQ

Questions about iOS app development.

How much does iOS app development cost in India?
In our draft cost bands, a simple single-platform app costs ₹3–6 lakh ($4,000–7,500), and larger apps with a backend and admin run ₹15–30 lakh or more. Apple also charges $99 a year for a developer account.
How long does it take to build an iOS app?
Our draft MVP Launch package takes 8–14 weeks, plus time for App Store review.
Do you handle App Store submission and review?
Yes: we publish and run our own apps on the App Store, and take yours through submission and review.
Can you update our app for the latest iOS version?
Yes. We test it on the new iOS, fix what has changed and move it to the SDK Apple requires for new submissions.
Do you build iOS apps in Swift and SwiftUI?
Yes. New iOS apps are written in Swift, with SwiftUI for the interface.
Do you build Apple Watch apps?
Yes: we build Apple Watch companion apps, planned with the iPhone app so each device does the job it suits. See wearable app development.