What is iOS app testing?

iOS app testing checks that your app installs, works and performs well on the iPhones and iPads your users own, across the iOS versions you support, and that it meets Apple’s App Store rules before you submit.

How is iOS testing different from Android testing?

iOS has far fewer devices, but stricter App Store review, strong privacy rules and fast adoption of new iOS versions. So the focus moves from device coverage to review readiness, privacy prompts and testing each new iOS beta before it ships.

Which iPhones and iPads do you test on?

The ones your users own. We build the device matrix from your analytics and markets, usually covering the latest and previous iPhone generations, a small-screen model such as iPhone SE, and the iPads you support. The device matrix wizard on this page gives you a first view.

Do you test on real devices or simulators?

Both. The Xcode Simulator gives fast feedback during development. Before release we test on real iPhones and iPads, our own and on device clouds such as BrowserStack and Sauce Labs, because cameras, Face ID, push notifications and performance only behave truly on real hardware.

How many iOS versions should we test?

Usually the latest release, the one before it and your minimum supported version, plus the next iOS beta during the summer. Because most users update quickly, two or three versions often cover nearly all of them.

Can you help us pass App Store review?

Yes. We check privacy labels, the privacy manifest, permission wording, in-app purchases, account deletion, Sign in with Apple and the listing against Apple’s guidelines, and test the exact build you will submit, so you avoid common rejections.

Do you test with TestFlight?

Yes. We install builds through TestFlight, test them as internal or external testers, and can run your external beta programme, turning tester feedback and crash reports into clear bug reports.

When should we start testing a new iOS version?

As soon as Apple releases the first developer beta, usually in June. We test your app on each beta through the summer, so problems are fixed before the public release in September.

Do you test iPad apps properly?

Yes. We test Split View, Slide Over and Stage Manager, Apple Pencil, hardware keyboards and trackpads, and both orientations, so your iPad app feels built for iPad.

Do you test Apple Watch, Apple TV, CarPlay and Vision Pro apps?

Yes. We test watch complications and iPhone sync, Apple TV focus navigation, CarPlay templates and driver safety rules, and visionOS windows and input.

Do you test Flutter and React Native apps on iOS?

Yes. We test the app on real Apple devices whatever it is built with, and pay extra attention to plugins, native modules and over-the-air updates, where cross-platform apps most often fail on iOS.

How do you test iOS app security?

We test against OWASP MASVS and MASTG: how data is stored in the Keychain and files, network security and certificate pinning, URL schemes and universal links, and resistance to jailbreaking and tampering.

How do you test iOS app performance?

We measure launch time, hangs, scrolling, battery, memory and data use with Xcode Instruments on new and older devices, and compare the results with what Xcode Organizer reports from your real users.

Can iOS tests be automated?

Yes, iOS tests can be automated to run repeatable checks on every build. We use XCUITest for native UI tests, Appium when you want one suite for iOS and Android, Maestro for simple mobile UI flows and Fastlane for builds and screenshots, while our testers keep checking what needs human judgement.

How do we get started?

Book a call or send the form on this page. We start with a free one-week proof of concept on your most important iOS journeys, so you can see our bug reports before you commit.

iOS App Testing Services

iPhone and iPad users expect apps that feel polished from the first tap, and Apple reviews every release before it reaches them.

We test on the real iPhones and iPads your users own, across every iOS version you support and the next beta, and get each build ready for TestFlight and App Store review.

Get in touch Build your device matrix

Real iPhones and iPads
Every iOS version and beta
App Store ready
Free one-week POC

What we test

01iPhone & iPad device matrixReal devices 02iOS-specific behaviourPrivacy & system 03iOS versions, betas & updatesOS releases 04iPadLarge screens 05Apple Watch, Apple TV, CarPlay & Vision ProBeyond iPhone 06Swift, SwiftUI, Objective-C, Flutter & React NativeAny stack 07iOS securityData & privacy 08iOS performanceSpeed & battery

[ Why iOS testing ]

Fewer devices, higher expectations

iPhone users often spend more in apps and leave a bad review faster. Apple checks every release against its guidelines, and a rejection can delay a launch by days. Each year a new iOS version changes privacy rules, APIs and design, and most users install it within weeks. iOS testing is about getting through review the first time and staying ready for whatever Apple ships next.

Building for Android too? See Android app testing →

Ready for App Review

Privacy, payments and review rules checked before you submit, so you avoid rejections.

Ready for every new iOS

Betas tested from WWDC onwards, so launch day is a non-event.

iPhone and iPad done properly

Real devices, every screen size and true iPad behaviour, not a stretched phone app.

Fast and private

Performance, battery and data protection tested on new and older devices.

[ What we test ]

Eight areas where iOS apps break

From the iPhone in your user’s hand to the privacy of the data on it. Each area lists what we check, when you need it and the risk we look at first.

iPhone & iPad device matrix

Real devices

Apple makes fewer devices than the Android world, but screen sizes, chips, cameras and the Dynamic Island still vary a lot. We pick the iPhones and iPads your users really own, from your analytics.

What we check

Current and previous iPhone generations, Pro and standard
Small screens such as iPhone SE, and the largest Pro Max sizes
iPad, iPad mini, iPad Air and iPad Pro
Older devices on the oldest iOS version you support

When you need it

Before your first release, and each autumn when new iPhones arrive.

Top risk we test firstLayouts that break on the smallest or largest screens

iOS-specific behaviour

Privacy & system

iOS protects users with strict privacy prompts and tight limits on background work. Apps have to handle every answer a user can give and every way the system can pause them.

What we check

Permission prompts: allow, deny, limited photos and approximate location
App Tracking Transparency and privacy choices
Face ID, Touch ID and passkeys
Background refresh, push notifications, widgets and Live Activities

When you need it

For every release, especially after privacy, login or notification changes.

Top risk we test firstFeatures that silently stop working after a user taps “Don’t Allow”

iOS versions, betas & updates

OS releases

Most iPhone users update to a new iOS version within months, and Apple changes APIs, privacy rules and design every year. We test the new beta all summer, so you are ready on launch day.

What we check

Your minimum supported iOS version up to the latest release
Developer and public betas from WWDC to release
New Xcode and SDK requirements for App Store submissions
App updates installed over older versions with real data

When you need it

Every June to September, and before you drop support for an older iOS.

Top risk we test firstCrashes and broken screens on the day a new iOS ships

iPad: multitasking, Pencil & keyboard

Large screens

iPad users expect more than a stretched iPhone app. We check that your app works the way people actually use their iPads.

What we check

Split View, Slide Over and Stage Manager window sizes
Apple Pencil input, hover and handwriting
Hardware keyboards, shortcuts, trackpad and mouse
Portrait, landscape and external displays

When you need it

When you add iPad support, or see iPad users in your analytics.

Top risk we test firstLayouts that crop or reset when the window is resized

Apple Watch, Apple TV, CarPlay & Vision Pro

Beyond iPhone

Companion and standalone apps across Apple’s platforms have their own interface rules and their own App Store checks.

What we check

watchOS complications, notifications and iPhone sync
tvOS focus navigation and the Siri Remote
CarPlay templates and driver safety rules
visionOS windows, spatial layout and eye and hand input

When you need it

Before you launch on a new Apple platform, and with every companion app update.

Top risk we test firstSync failures between iPhone and the watch, TV or car

Swift, SwiftUI, Objective-C, Flutter & React Native

Any stack

However your app is built, we test the result on real Apple devices, and we know where each technology tends to fail.

What we check

Native Swift and SwiftUI apps, including UIKit screens
Older Objective-C code and mixed codebases
Flutter apps: plugins, platform channels and rendering
React Native apps: native modules and over-the-air updates

When you need it

Whenever you change Swift, Xcode, framework or plugin versions.

Top risk we test firstBugs in the native layer under a cross-platform framework

iOS security (OWASP MASVS)

Data & privacy

View service

iOS is secure by design, but apps can still leak data. We test yours against OWASP MASVS and its testing guide, MASTG.

What we check

Keychain, files, caches, logs and backups
Network security, App Transport Security and certificate pinning
URL schemes, universal links and app extensions
Jailbreak detection, tampering and reverse engineering

When you need it

Before launch, after major changes, and when handling payments or health data.

Top risk we test firstTokens or personal data stored where other tools can read them

iOS performance

Speed & battery

View service

Users notice slow launches, stutters and battery drain straight away. We measure what they feel, on older devices as well as the newest.

What we check

Launch time, hangs and scroll smoothness
Battery, memory, storage and data use
Behaviour on poor networks and in Low Power Mode
Thermal throttling during long sessions

When you need it

Before launch, and whenever Xcode Organizer shows hangs or crashes rising.

Top risk we test firstHangs and slow launches on older iPhones

[ App Store review & TestFlight ]

Get through review the first time

Most rejections come from a short list of misses. We check all of them, and run your TestFlight beta so real testers try the build before Apple does.

App Store review checklist

Ten checks before you press “Submit for Review”

PrivacyPrivacy labels in App Store Connect match what the app really collects
PrivacyPrivacy manifest and required reason APIs declared
PrivacyEvery permission prompt explains clearly why it is needed
ReviewDemo account and notes ready for the App Review team
ReviewNo placeholder content, broken links or unfinished features
PaymentsIn-app purchases and subscriptions use Apple’s rules and work in sandbox
AccountUsers can delete their account from inside the app
LoginSign in with Apple offered where other social logins are
BuildBuilt with the Xcode and SDK version Apple currently requires
ListingScreenshots, previews and descriptions match the current app

TestFlight & beta testing

Real testers before real users

01Internal testingYour team installs every build within minutes, with no review.
02External testingUp to 10,000 testers by email or public link, after a short beta review.
03FeedbackScreenshots and crash reports from testers go straight into our bug reports.
04ReleasePhased release to production, with crashes and reviews watched day by day.

[ How we work ]

Six steps from device matrix to App Store release

You always know which devices and iOS versions are covered and what is ready to ship. Every matrix, plan and report belongs to you.

Step 1 of 6
Review your app & users

Your app, analytics, markets and App Store Connect data reviewed with your team.

You getRisk and user review
Step 2 of 6
Build the device matrix

iPhones, iPads and iOS versions chosen from real user share.

You getiOS device matrix
Step 3 of 6
Plan the tests

Journeys and iOS-specific checks written for your app and its stack.

You getiOS test plan
Step 4 of 6
Test on real devices

Real iPhones and iPads, plus device clouds and simulators for breadth.

You getBug reports with device, iOS and logs
Step 5 of 6
Beta & review readiness

TestFlight builds tested and the App Store checklist completed.

You getApp Store checklist
Step 6 of 6
Release & monitor

Phased release watched, then regression on every release and new iOS.

You getRelease sign-offUpdated matrix

Free one-week POCWe test your most important iOS journeys for a week, so you can judge our work first.
Real devices firstCore journeys on real iPhones and iPads in our team’s hands, with BrowserStack and Sauce Labs for breadth.
Bug reports you can act onDevice, iOS version, steps, video and device logs on every issue.

[ Tools ]