What is app accessibility testing?

App accessibility testing checks whether people with disabilities can use your Android and iOS app, including people who rely on TalkBack, VoiceOver, larger text, or switch controls. It measures the app against WCAG success criteria and the laws that reference them, such as the ADA and Section 508.

Does WCAG apply to mobile apps?

Yes. The W3C publishes guidance on applying WCAG 2 to native and hybrid mobile apps, and the US Department of Justice ADA Title II rule names WCAG 2.1 Level AA as the standard for state and local government mobile apps.

How do I test my mobile app for accessibility?

Start with a manual pass in the Native App Scanner: upload your build, open it on a real device, and scan each screen of your key flows. Then use native app accessibility automation so the same checks run on every build, and finish with a TalkBack or VoiceOver pass on the flows that matter most.

Can automated tools find every app accessibility issue?

No. Automated rules catch what a machine can verify, such as missing labels, low contrast, and small touch targets. Whether a label makes sense when read aloud, or whether focus moves in a logical order, still needs a person with a screen reader. That is why TestMu AI Accessibility Testing keeps manual scans, automated scans, and screen reader sessions in one dashboard.

What is the difference between Android and iOS accessibility testing?

Android apps are read by TalkBack and iOS apps by VoiceOver, and each platform exposes labels, roles, and text sizing through its own APIs. TestMu AI runs 18 baseline automated checks on Android and 15 on iOS, plus newer rules shared by both. The Android coverage checklist and iOS coverage checklist list every rule and what still needs a manual check.

Do I need to write code to test app accessibility?

No. The Native App Scanner works without code, and KaneAI lets you add an accessibility scan step to a mobile test by typing / while you author it. Teams with an Appium suite add one call, driver.executeScript("lambda-accessibility-scan"), after each screen.

Which frameworks support automated app accessibility testing?

Native app accessibility automation runs through Appium on real Android and iOS devices, the same setup used for app test automation. KaneAI covers teams that prefer natural-language tests. For web apps, the same engine works with Selenium, Playwright, and Cypress through Accessibility Automation.

Why test app accessibility on real devices instead of emulators?

Screen reader output, touch target rendering, and font scaling on a real phone can differ from an emulator. App scans on TestMu AI run on the real device cloud, with 10,000+ real Android and iOS devices, so you test the hardware and OS versions your users carry.

Does TestMu AI provide a VPAT for my app?

No. A VPAT or Accessibility Conformance Report is a document your organization writes about its own product. TestMu AI gives you the evidence behind it: scan history, WCAG-mapped issues with severity, and exportable PDF and CSV reports.

Why is accessibility testing important for mobile apps?

The WHO estimates that 1.3 billion people, about 1 in 6, experience significant disability, and many of them use a phone for banking, shopping, and public services. An inaccessible app shuts those users out and creates legal exposure under laws such as the ADA.

Mobile App Accessibility Testing on Real Devices

Name: App Accessibility Testing
Rating: 4.8 (451 reviews)

Find WCAG, ADA, and Section 508 issues in native apps on 10,000+ real devices, with manual scans, Appium checks, and screen readers.

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Mobile App Accessibility Testing on Real Devices

Trusted by 3M+ users globally at

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Every Way to Run Mobile App Accessibility Testing

Scan screens by hand, add checks to your Appium suite, verify TalkBack and VoiceOver, and fix issues from your IDE.

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NO-CODE MANUAL SCANS

Audit Any Screen on a Real Device

Upload your Android or iOS build, open it on a real device, and scan each screen as you walk through the flows your users take.

Scan Your App Free

Checks labels, roles, contrast, and touch targets
Tests Dynamic Type and font scaling on real hardware
Maps every issue to a WCAG criterion with a fix

APPIUM & KANEAI

Add Accessibility to Every Appium Run

Add accessibility checkpoints to the Appium suite you already run, or add scan steps in KaneAI without code.

Automate App Scans

Call lambda-accessibility-scan after any stable screen. Results appear in the Accessibility tab for that build.

Type / while authoring a KaneAI mobile test to add a scan step. The test is tagged accessibility-scan for filtering.

Pick a WCAG target, switch rule groups on or off, or hand-pick rules. Your choices are pre-filled on the next scan.

Tag scans by feature, sprint, or build to compare accessibility for one part of the app over time.

SCREEN READERS

Hear Your App the Way Users Do

Rules confirm a label exists. A screen reader tells you whether it makes sense when read aloud, so run both in the same session.

Test With Screen Readers

TalkBack on real Android phones and tablets
VoiceOver on real iPhones and iPads
Check reading order, focus, and announcements

MCP SERVER

Find and Fix Issues From Your Editor

The TestMu AI MCP Server brings accessibility reports into Claude Code, Cursor, VS Code, and other AI coding tools.

Try the MCP Server

Connect with one command in Claude Code or Cursor
Ask for an accessibility report in plain English
Get fix guidance next to the code you are editing

Android and iOS Rule Coverage

Automated rules run on every app scan, each mapped to a WCAG criterion. The last row lists what to verify by hand.

Android

iOS

Baseline automated rules

18 WCAG-mapped checks

15 WCAG-mapped checks

Recently added rules

34 new AI-enabled, best practice, and beta rules, shared with iOS

34 new AI-enabled, best practice, and beta rules, shared with Android

Labels and names

Missing field labels, unlabeled checkboxes and toggles, missing image alt

Missing labels on buttons, images, checkboxes, switches, and editable fields

Color contrast

Insufficient color ratio (WCAG 1.4.3)

Color contrast issues (WCAG 1.4.3)

Touch targets

Undersized touch targets and insufficient spacing (WCAG 2.5.5)

Touch target sizing (WCAG 2.5.5)

Roles and focus

Undefined interactive roles, inaccessible text focus, nested controls

Accessibility role definition, duplicate labels

Text and layout

Fixed orientation lock (WCAG 1.3.4), missing screen title

Dynamic Type support, text truncation (WCAG 1.4.4)

Verify by hand

TalkBack full flows, Switch Access, system font scaling

VoiceOver navigation, Switch Control, rotation, autofill

Built for Mobile App Accessibility Testing

Real Devices, Not Emulators

Screen readers, touch targets, and font scaling can behave differently on emulators. Scans run on real devices.

WCAG, ADA & Section 508

Choose WCAG 2.0, 2.1, or 2.2 at Level A, AA, or AAA. Every issue links to the criterion it fails.

Severity You Can Triage

Issues are ranked Critical, Serious, Moderate, or Minor, with the element path and fix guidance.

Audit-Ready Reports

Export PDF or CSV reports and keep scan history as evidence for the VPAT your team writes.

Accessibility Score

Track one density-adjusted score per app over time, weighted toward the elements people interact with.

Jira, Slack & GitHub

File a bug from any issue with the WCAG reference, severity, and element already filled in.

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AI-Agentic Quality Engineering

AI-native agents that plan, run, and analyze tests across web and 10,000+ real Android and iOS devices.

Agent

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Browser Testing

Real Device Cloud

App Automation

HyperExecute

Visual UI Testing

Accessibility Testing

Agent Testing

Test AI agents such as chatbots, voice assistants and more.

More about Agent Testing

Autonomous Testing

Detailed agent analysis under test, from the perspective of a synthetic end-user.

Multi-Persona Simulation

Diverse user personas like International Caller, Digital Novice and more.

Risk Scoring & Regression

End to end regression testing for agent under test with insights.

App Accessibility Testing on Any Device Cloud

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Start on shared devices, reserve dedicated ones, or keep devices behind your firewall. Scans and reports work the same on all three.

Public Real Device Cloud

Test app accessibility on shared real Android and iOS devices with zero setup.

Private Real Device Cloud

Reserved real devices with 24/7 access for teams that scan every release.

On-Premise Device Cloud

Run app accessibility scans with devices and data kept behind your firewall.

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