Comparison of Email Testing Tools

Email testing is a service that enables email developers to preview HTML template on supported email clients and mobile devices.

Email testing Services

Name Founded Email clients support One month basic plan Limits Payment model Payment type Free test
Testi@ 2016 139 20$ Unlimited Email Previews Pay as you go Stripe/Paypal/Credit card 3 email clients, extra 6 previews, selective 4 days trial
EmailonAcid 2009 103 74$ Unlimited Email Previews Subscription Credit card Yes
Litmus 2005 116 99$ 1,000 to 2,000 Email Previews + Custom Subscription Credit card 7 days - 202 single preview

Features

Name Litmus Emailonacid Testi@
Custom desktop client container size No No Yes
HTML editor Yes Yes Yes
Spam testing Yes / except basic subscription Yes / except basic subscription Yes / only web clients, API for paid users
Email Analytics Yes / except basic subscription Yes / except basic subscription No
ESP integration Yes / except basic subscription Yes / except basic subscription Yes
Chrome extension Yes / except basic subscription Yes Yes
Send email to own device No No Yes, up to 15 emails, available in free plan

Email Clients support

Name Litmus Emailonacid Testi@
Desktop Clients
Mozilla Thunderbird Yes/legacy version from 2018 No Yes
Text mode Yes Yes Yes, Thunderbird
Outlook 2024 Yes Yes Yes
Outlook 2024 dark Yes Yes Yes
Outlook 2021 Yes Yes Yes
Outlook 2021 (dark) Yes Yes Yes
Outlook 2021 120 dpi Yes No Yes
Outlook 2021 150 dpi No No Yes
Outlook 2019 Yes Yes Yes
Outlook 2019 (120 dpi) Yes Yes Yes
Outlook 365 Yes Yes Yes
Outlook 365 dark Yes Yes Yes
Outlook 365 120dpi Yes Yes Yes
Outlook 365 120dpi (dark) Yes No Yes
Outlook 365 MacOs Yes Yes Yes
Outlook 365 MacOs dark Yes Yes Yes
Outlook 2016 (win10/win11) Yes Yes Yes
Outlook 2016 120dpi Yes Yes No
Windows 10 mail Yes/ will be removed in future No Yes
Windows 11 mail Yes/ will be removed in future No Yes
Windows 11 dark Yes / will be removed in future No Yes
Outlook 2016 (macOS) Yes No Yes
Outlook 2013 Yes No Yes
Outlook 2013 (120dpi) Yes No Yes
Outlook 2010 Yes No Yes
Outlook 2007 Yes No Yes
macOS Sequoia Yes Yes Yes
macOS Sequoia dark Yes Yes Yes
macOS Sonoma No No Yes
macOS Sonoma (dark) No No Yes
macOS Ventura No No Yes
macOS Ventura (dark) No No Yes
macOS Monterey No No Yes
macOS Monterey (dark) No No Yes
macOS Big Sur No No Yes
macOS Big Sur dark No No Yes
macOS Catalina No No Yes
IBM Notes 10 Yes No No
IBM Notes 9 Yes No No
Lotus Notes 8.5 Yes No No
Mobile devices
Gmail iPhone 11 - iOS 13 Yes Unknow Yes
Gmail iPhone 11 - iOS 13 (dark) Yes Unknow Yes
Gmail iPhone 11 - iOS 13 No No Yes
Gmail iPhone Xs - iOS 13 No No Yes
Gmail - iPad Pro (12.9in) No No Yes
Gmail - iPhone 14 pro - iOS 16 No No Yes
Gmail - iPhone 14 plus (dark) No No Yes
Gmail - iPhone 14 - iOS 16 No No Yes
Gmail - iPhone 13 mini - iOS 17 No No Yes
Gmail - iPhone 15 plus - iOS 17 No No Yes
Outlook iPhone 14 No No Yes
Outlook iPhone 14 plus No No Yes
Outlook iPhone 11 No No Yes
Outlook iPhone 8 No No Yes
Outlook iPhone Yes Yes No
Outlook iPhone 13 No Yes No
Outlook iPhone 13 (dark) No Yes No
Yahoo - iPhone 14 - iOS 16 No No Yes
Yahoo - iPhone 14 Pro No No Yes
Yahoo - iPhone 14 plus (dark) No No Yes
Yahoo - iPad Pro (12.9in) No No Yes
iPhone 16 iOS 18 Yes Yes Yes
iPhone 16 iOS 18 (dark) Yes Yes No
iPhone 16 plus iOS 18 Yes No Yes
iPhone 16 plus iOS 18 (dark) Yes No No
iPhone 16 Pro iOS 18 Yes No No
iPhone 16 Pro iOS 18 (dark) Yes No No
iPhone 16 Pro Max iOS 18 Yes No No
iPhone 16 Pro Max iOS 18 (dark) Yes No Yes
iPhone 15 iOS 17 Yes Yes Yes
iPhone 15 iOS 17 (dark) Yes Yes No
iPhone 15 Pro iOS 17 (dark) No No Yes
iPhone 15 Pro Max iOS 17 No Yes Yes
iPhone 15 Pro Max iOS 17 (dark) No Yes No
iPhone 15 Plus iOS 17 Yes Yes No
iPhone 15 Plus iOS 17 (dark) Yes Yes No
iPhone 14 iOS 16 Yes Yes Yes
iPhone 14 iOS 16 (dark) Yes Yes Yes
iPhone 14 Pro Max iOS 16 Yes Yes Yes
iPhone 14 Pro Max iOS 16 (dark) Yes Yes No
iPhone 14 plus iOS 16 No No Yes
iPhone 14 Pro iOS 16 No Yes No
iPhone 14 Pro iOS 16 (dark) No Yes No
iPhone 13 iOS 15 Yes Yes Yes
iPhone 13 iOS 15 (dark) Yes Yes No
iPhone 13 mini iOS 15 No Yes Yes
iPhone 13 mini iOS 17 No No Yes
iPhone 13 Pro Max - iOS 15 Yes Yes Yes
iPhone 13 Pro Max - iOS 15 (dark) Yes No No
iPhone 12 Pro Max iOS 14/15 Yes Yes Yes
iPhone 12 Pro iOS 14/15 Yes Yes Yes
iPhone 12 iOS 14/15 (dark) Yes Yes No
iPhone 12 Mini Yes Yes Yes
iPhone 12 Mini (dark) No Yes No
iPhone 11 Pro Max iOS 15/13/14 Yes No Yes
iPhone 11 Pro iOS 15/13/14 Yes Yes Yes
iPhone 11 iOS 15/13/14 Yes Yes Yes
iPhone 11 iOS 15/13/14 (dark) Yes Yes No
iPad Air gen 4 - iOS 14 Yes No No
iPad Air 3 - iOS 13 No No Yes
iPad Pro (12.9in) - iOS 15/14 No Yes Yes
iPad Pro (11in) - iOS 15/13 Yes Yes No
iPad Pro (12.9in) - iOS 12 No No Yes
iPad Pro (10.5in) - iOS 12 No No Yes
iPhone XR No No Yes
iPhone XS No No Yes
iPhone 7 plus No No Yes
iPhone 7 No No Yes
iPhone 8 No No Yes
iPhone 8 plus No No Yes
iPhone SE gen2 Yes Yes Yes
iPhone SE Yes No No
iPhone 6 No No Yes
Android 13 - Pixel 6 - Yahoo No No Yes
Android 14 - Gmail - Pixel 7 No No Yes
Android 14 - Gmail - Pixel 7 Pro No No Yes
Android 13 - Gmail - Pixel 6 No No Yes
Android 13 - Gmail - Pixel 7 No Yes No
Android 13/14 - Gmail - Pixel 6 (dark) No Yes Yes
Android 12 - Gmail No Yes Yes
Android 12 - Gmail (dark) No Yes Yes
Android 11 - Gmail Yes Yes Yes
Android 11 - Gmail (dark) Yes Yes Yes
Android 10 - Gmail (dark) Yes Yes Yes
Android 10 - Gmail Yes Yes Yes
Android 9 - Gmail Yes Yes Yes
Android 8 - Gmail Yes Yes Yes
Android 7 - Gmail (@gmail.com) Yes Yes Yes
Android 8 - Gmail (@gmail.com) Yes Yes Yes
Android 6 - Gmail (IMAP) No No Yes
Android 6 - Mail Unknow Unknow Yes
Samsung mail Yes No Yes
Samsung mail - Android 10 No No Yes
Android 13 Pixel - Yahoo No No Yes
Android 13 Pixel - Outlook No No Yes
Android 11 - Outlook Yes No Yes
Android 11 - Outlook (dark) Yes No Yes
Web clients
Gmail Chrome Yes Yes Yes
Gmail Firefox Yes Yes Yes
Gmail Edge Yes Yes Yes
Gmail MacOs No No Yes
G Suite Chrome (same as Gmail) Yes Yes Yes
G Suite Firefox Yes Yes No
G Suite Edge Yes Yes No
Yahoo - Chrome Yes Yes Yes
Yahoo - Firefox Yes Yes Yes
Yahoo - Edge Yes Yes Yes
Yahoo MacOs No No Yes
Walla.co.il - Chrome No No Yes
Outlook.com - Chrome (dark) Yes Yes Yes
Outlook.com - Chrome Yes Yes Yes
Outlook.com - Chrome dark Yes Yes No
Outlook.com - Firefox Yes Yes Yes
Outlook.com - Firefox ark Yes Yes No
Outlook.com - Edge Yes Yes Yes
Outlook.com - MacOs No No Yes
Office 365 - Chrome Yes Yes Yes
Office 365 - Firefox Yes Yes No
Office 365 - Edge Yes Yes No
Comcast - Chrome Yes No No
Comcast - Firefox Yes No No
Comcast - Edge Yes No No
AOL Mail - Chrome (same as yahoo) Yes Yes Yes
AOL Mail - Firefox (same as yahoo) Yes Yes Yes
AOL Mail - Edge (same as yahoo) Yes Yes No
Yandex - Chrome No No Yes
Yandex - Firefox No No Yes
T-online.de - Chrome Yes Yes Yes
T-online.de - Firefox Yes Yes Yes
T-online.de - Edge Yes Yes No
GMX - Chrome Yes Yes Yes
GMX - Firefox Yes Yes No
GMX - Edge Yes Yes No
Libero - Chrome No Yes Yes
Libero - Firefox No Yes No
Libero - Edge No Yes No
Web.de - Chrome Yes Yes No
Web.de - Firefox Yes Yes Yes
Web.de - Edge Yes Yes No
Freenet.de - Chrome Yes Yes Yes
Freenet.de - Firefox Yes Yes No
Freenet.de - Edge Yes Yes No
Zimbra No No Yes
Seznam.cz No No Yes
Mail.Ru - Chrome Yes Yes Yes
Mail.Ru - Firefox Yes Yes No
Mail.Ru - Edge Yes Yes No
Proton Mail - Chrome No No Yes
Onet - Chrome No No Yes
Roundcube - Chrome No No Yes
Name Litmus Emailonacid Testi@