visibility in Apple Mail iOS
Works visibility works in Apple Mail iOS.
Works in 13 of 21 · not supported in 8
Which clients
- Works
- Outlook 365, Outlook (New), Outlook iOS, Outlook for Mac, Apple Mail, Apple Mail iOS, Yahoo Mail iOS, Samsung Mail, Thunderbird, HEY Mail, Proton Mail, Fastmail, Superhuman
- Not supported
- Gmail, Gmail Android, Gmail iOS, Outlook Classic, Outlook Android, Yahoo Mail, Yahoo Mail Android, AOL Mail
The fix for the clients that need it
Needed in 8 of 21: Gmail, Gmail Android, Gmail iOS and 5 more.
Use conditional comments or remove hidden content
<!-- For screen readers, use font-size: 0 trick -->
<div style="font-size: 0; max-height: 0; overflow: hidden;
mso-hide: all;" aria-hidden="true">
Preheader text
</div>Show the original
<div style="visibility: hidden;">
Hidden content for screen readers
</div>A free account opens all 21 clients and keeps your checks for 7 days. Create a free account →
What Apple Mail iOS does with visibility
The Emailens probe for visibility on a real install counted as Apple Mail iOS, captured 14 Oct 2026. It shows the probe, not the fix. Where visibility is supported it shows: a, gap, b (no hidden word).
caniemail: visibility works in Apple Mail iOS.
Every account includes one free real-device check in classic Outlook, Outlook for Mac and Apple Mail, after you verify your email and run one preview, while this month's free capacity lasts. How real-device checks work →
caniemail record, tested upstream 28 Feb 2019
- Buggy.
visibility:collapseapplied to a<tr>only hides content and does not "remove" it from layout.
Your next question
- Does inline-size work in Apple Mail iOS?
Works in 4 of 21 · not supported in 16 · 1 untested
- Does cursor work in Apple Mail iOS?
Works in 2 of 21 · partial in 4 · not supported in 10 · 5 untested
- Does hyphenate-limit-chars work in Apple Mail iOS?
Works in 1 of 21 · not supported in 17 · 3 untested
- Does resize work in Apple Mail iOS?
Works in 1 of 21 · partial in 1 · not supported in 16 · 3 untested
- Does text-justify work in Apple Mail iOS?
Works in 0 of 21 · partial in 4 · not supported in 13 · 4 untested
- Does :focus work in Apple Mail iOS?
Works in 10 of 21 · partial in 3 · not supported in 7 · 1 untested
Every feature in Apple Mail iOS · visibility in every client
Questions
- How many email clients support visibility?
- It works in 13 of 21, not supported in 8.
- Does visibility work in Apple Mail?
- visibility works in Apple Mail. Closest to Apple Mail iOS: Apple Mail, which agrees on 284 of the 298 features both are tested on.
To see what in your email Apple Mail iOS does not support, paste the whole email.
No signup · Five clients free, Outlook Classic included · All 21 with an account
The checker needs a computer screen.
Real captures 14 Oct 2026 on 11 installs · caniemail (MIT) via @emailens/engine 0.18.22 · tested upstream 28 Feb 2019 · data last changed 10 Nov 2026 · Outlook (New) cells are the engine's mapping