User agent reliability for VoiceOver iOS Screen reader compatibility

Shows how well VoiceOver iOS supports ARIA and WCAG sufficient techniques.

Latest version tested

VoiceOver iOS 16.6 with Safari iOS 16.6

• All tests: 59 pass of 78 tests (76%)
• ARIA tests: 25 pass of 31 tests (81%)
• WCAG tests: 39 pass of 52 tests (75%)

Reliability trend

Filter results: All testsARIA testsWCAG tests

Failing tests

	Test	Mode	What the user hears	Notes
	Page with xml:lang set on the html and p elements	Touch	Act-if tay-bill. Ray-day-oh.	Pronounced as English. Ignores xml:lang.
	application/xhtml+xml page with mismatching lang and xml:lang on the html element	Touch	Ga-raj. Doo-ble. Damm. Un, zway, dray.	Speech pronounced as lang=fr, but CSS matches :lang(de) and German CSS content pronounced as French.
	audio with aria-label attribute	Touch	Nothing	Nothing voiced for audio - no indication it exists
	audio with aria-labelledby attribute	Touch	Nothing	Nothing voiced for audio - no indication it exists
	audio with title attribute	Touch	Nothing	Nothing voiced for audio - no indication it exists
	abbr with title	Touch	T L N	ABBR expansion ignored.
	button containing img with title attribute	Touch	Button	Reads "button" without saying what button does.
	fieldset containing links	Touch	Legend for enclosed links, form start. Home, link. About, link. Contact, link end, legend for enclosed links, form end.	The fieldset is announced as a form, but contains no form controls.
	img with figcaption	Touch	One thousand, two hundred and thirty four PNG, image, test image. Violet, taken on twelve slash eleven slash two thousand and ten.	Reads out meaningless filename, then FIGCAPTION.
	area and img with alt attributes	Touch	This is alt text. (This is left alt text, link. This is right alt text, link)	Very hard to find AREA links because image map links are not announced when reading. It is possible to find them by minesweeping, or using the Next Link gesture, but there are no audible cues to tell the user they're missing links.
	area with title attribute	Touch	This is alt text. (This is left title text, link. This is right title text, link.)	Very hard to find AREA links because image map links are not announced when reading. It is possible to find them by minesweeping, or using the Next Link gesture, but there are no audible cues to tell the user they're missing links.
	area with aria-label attribute	Touch	This is alt text. (This is left ARIA label text, link. This is right ARIA label text, link.)	Very hard to find AREA links because image map links are not announced when reading. It is possible to find them by minesweeping, but there are no audible cues to tell the user they're missing links.
	area with aria-labelledby attribute	Touch	This is alt text. (Left arrow HTM, link. Right arrow HTM, link.)	Very hard to find AREA links because image map links are not announced when reading. URLs read out instead of ARIA-LABELLEDBY when Next Link gesture is used.
	Data table with role=grid	Reading	Morning, row 1, column 1, table start, 2 rows 2 columns. Afternoon, row 1 column 2. Free, row 2 column 1. Busy, row 2 column 2. Table end, end, end.	Voiced as table, but no headers read
	Data table with summary and th	Reading	Morning, row header, column header, row 1, column 1, table start, 2 rows 2 columns. Afternoon, column header, row 1 column 2. Morning, free, row 2 column 1. Afternoon, busy, row 2 column 2, table end, end, end.	Summary not read out
	Data table with caption and th	Touch	Data table caption, row -90020023372036854775808, table start, 2 rows 2 columns. Morning, row header, column header, row 1 column 1. Afternoon, column header, row 1 column 2. Morning, free, row 2 column 1. Afternoon, busy, row 2 column 2, table end, end, data table caption, end.	Meaningless row number read out for table caption.
	Data table with role=columnheader headers but no th	Reading	Morning, afternoon. Free, busy.	Table treated as layout table - not announced as table, and no headers read.
	Data table with th scope on cell headers	Touch	Contact information, row -90020023372036854775808, table start, 4 rows, 5 columns. Name, row header, row 1 column 2. Phone hash symbol, row 1 column 3. Fax hash symbol, row 1 column 4. City, row 1 column 5. One, row 2 column 1. Joel Garner, row 2 column 2. 412 212 5421, row 2 column 3. 412 212 5400, row 2 column 4. Pittsburgh, row 2 column 5. Two, row 3 column 1. Clive Lloyd, row 3 column 2. 410 306 1420, row 3 column 3. 410 306 5400, row 3 column 4. Baltimore, row 3 column 5.	Incomprehensible - doesn't read any cell headings, and reads out meaningless row number for caption.
	Data table with td headers attribute	Reading	Homework, row header, column header, spans 2 rows, row 1 column 1, table start, 3 rows 7 columns. Exams, column header, spans 3 columns, row 1 column 2. Projects, column header, spans 3 columns, row 1 column 5. Exams, one, row 2 column 2. Exams, two, row 2 column 3. Exams, final, row 2 column 4. Projects, one, row 2 column 5. Projects, two, row 2 column 6. Projects, final, row 2 column 7. Homework, fifteen percent, row 3 column 1. Exams, fifteen percent, row 3 column 2. Exams, fifteen percent, row 3 column 3. Exams, twenty percent, row 3 column 4. Projects, ten percent, row 3 column 5. Projects, ten percent, row 3 column 6. Projects, fifteen percent, row 3 column 7, table end, end, end.	Table incomprehensible - only first header in HEADERS list is voiced.

Passing tests

	Test	Mode	What the user hears	Notes
	Page with lang set on the html and p elements	Touch	Act-eef tab-le. Rah-di-oh.	Pronounced as French and German.
	text/html page with mismatching lang and xml:lang on the html element	Touch	Ga-raj. Doo-ble. Damm. Un, deux, trois.	Speech pronounced as lang=fr, and CSS matches :lang(fr).
	Match lang subtags	Touch	Dam-he. Dam-he. Dam-he.	All pronounced as German.
	ARIA role=heading	Touch	First level heading, heading level 1. Second level heading, heading level 2
	Heading is img with alt	Touch	Second level alt, heading level 2, image, test image.	Reads out text in image as well as alt text.
	applet with title attribute	Touch	Nothing	iOS does not support applets, and does not render them on screen
	applet with fallback content	Touch	Fallback content for applet	iOS does not support applets
	applet with aria-label attribute	Touch	Nothing	iOS does not support applets, and does not render them on screen
	applet with aria-labelledby attribute	Touch	Nothing	iOS does not support applets, and does not render them on screen
	applet inside figure with figcaption element	Touch	Figure caption for applet
	embed with title attribute	Touch	Title text for embed
	embed inside figure with figcaption	Touch	Figure caption for embed
	embed with aria-label attribute	Touch	Aria label for embed
	embed with aria-labelledby attribute	Touch	This is ARIA-LABELLEDBY text
	object with fallback content	Touch	Fallback content for object
	object with title attribute	Touch	Title for object
	object with aria-label attribute	Touch	Aria label for object
	object with aria-labelledby attribute	Touch	This is ARIA-LABELLEDBY text.
	video with aria-label attribute	Touch	Video aria label, 5 seconds, video playback, end article, elapsed time 0 seconds, double-tap to play or pause.
	video with aria-labelledby attribute	Touch	This is ARIA-LABELLEDBY text, 5 seconds, video playback, end article, elapsed time 0 seconds, double-tap to play or pause.
	video with title attribute	Touch	Video title, 5 seconds, video playback, end article, elapsed time 0 seconds, double-tap to play or pause.
	iframe with fallback content	Touch	This is an. Example hyperlink, link. In the target page.	Fallback content is ignored
	iframe with title attribute	Touch	This is an. Example hyperlink, link. In the target page.
	Interactive iframe with role=presentation and no accessible name	Touch	This is an. Example hyperlink, link. In the target page.
	Interactive iframe with role=presentation and negative tabindex and no accessible name	Touch	This is an. Example hyperlink, link. In the target page.
	button containing img with alt	Touch	This is image alt, button
	button containing img with aria-label	Touch	This is image aria label, button
	button containing img with aria-labelledby	Touch	This is aria labelled by, button
	button with title containing img with null alt	Touch	This is button title, button
	button with aria-label containing img with null alt	Touch	This is button aria label, button
	input type=image with alt	Touch	This is image button alt text, button
	input type=image with title attribute	Touch	This is image button title text, button
	input type=image with aria-label attribute	Touch	This is image button aria label text, button
	input type=image with aria-labelledby attribute	Touch	This is image button aria-labelled by text, button
	input type=text with aria-describedby attribute	Touch	First name, text field, a bit of instructions for this field linked with aria describedby
	input type=text with title attribute	Touch	Enter search text, text field
	input type=text with aria-label attribute	Touch	Enter search text, text field
	input type=text with aria-labelledby attribute	Touch	Enter search text, text field, double tap to edit
	input type=text with label for	Touch	Enter search text, text field, end article, double tap to edit
	input type=text inside label with text before control	Touch	Enter search text, text field, end article, double tap to edit
	input type=text inside label with text after control	Touch	Enter search text, text field, double tap to edit
	input type=text inside label with text before and after control	Touch	Enter search text blanks not allowed, text field, double tap to edit
	Yes/No radio buttons inside fieldset element	Touch	I agree to terms and conditions, form start. Yes, radio button, ticked, one of two. No, radio button, unticked, two of two. Sign me up to the newsletter, form start. Yes, radio button, ticked, one of two. No, radio button, unticked, two of two.
	img with null alt	Touch	Nothing	Ignored as expected
	img with alt	Touch	This is alt text, image, test image	Text in image captured via OCR
	img with title	Touch	This is title text, image, test image
	img with aria-label	Touch	This is an aria label, image, test image
	img with aria-labelledby	Touch	This is an aria labelled by, image, test image
	area with alt attribute and img with null alt	Touch	This is left alt text, link. This is right alt text, link.	Link role only announced when reading if owner IMG has null alt.
	Link containing img with alt	Touch	This is a link alt, link image
	Link containing img with title	Touch	This is an image title, link image
	Click Here link with title attribute	Touch	Click here, link, this is a link title
	Link text replaced by aria-label attribute	Touch	This is an aria label, link
	Link text replaced by aria-labelledby attribute	Touch	This is an aria labelled by, link
	Click Here link with aria-describedby attribute	Touch	Click here, link, this is an aria described by
	Layout table with single cell	Reading	This is some text.	Treated as a layout table.
	Layout table with role=presentation	Reading	Example, Navigation. Links, Content.	Table treated as layout table - not announced as table.
	Data table with role=table	Reading	This is some text. Table start, end.	Treated as a data table.
	Data table with th cell headers	Reading	Morning, row header, column header, row 1 column 1, table start, 2 rows 2 columns. Afternoon, column header, row 1 column 2. Morning, free, row 2 column 1. Afternoon, busy, row 2 column 2, table end, end, end.	Column headers are not read by the Read Screen gesture, but are read by the Read Item gesture.