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8 Best Email Apps for iPhone/iPad in 2025

iPhone / iPad メールアプリ おすすめ

In recent years, the rise of LINE has reduced the frequency of email communication. Still, there are times when you may need to check work-related or other important emails on your iPhone or iPad.

While these devices come with the default “Mail” app preinstalled, a wide range of alternative email apps are also available. It may be worth exploring them to find one that best suits your needs.

Table of Contents

  1. Reliable Free Email Apps for iPhone and iPad
    1. Apple Mail
    2. Gmail
    3. Spark by Readdle
    4. Airmail
    5. Spike
    6. BlueMail
    7. Canary Mail
  2. Email Apps for iPhone and iPad with Free Trials
    1. Polymail
  3. Excluded Email Apps
    1. Microsoft Outlook
    2. Unibox
  4. Discontinued Email Apps
    1. Newton Mail
  5. Conclusion

Reliable Free Email Apps for iPhone and iPad

Among the email apps available for iPhone and iPad, some offer more than enough features even in their free versions. It is a good idea to start by trying a few free options to see if any of them suit your preferences.

Apple Mail

Apple Mail

https://support.apple.com/mail

Download on the App Store
Supported OS/DevicesiPiPhone, iPad, iPod touch, Apple Watch, Apple Vision, Mac
Free PlanYes
Paid PlanNo
Supported ServicesGmail, Microsoft Exchange, iCloud, Yahoo!, Aol.
Supported ProtocolsIMAP: Yes, POP3: Yes

The default Mail app comes preinstalled on iPhone and iPad.

It includes seven default folders: Inbox, VIP, Drafts, Sent, Archive, Trash, and Junk. You can also create additional folders or subfolders to organize your messages. The app supports a unified inbox for managing multiple accounts in one place, as well as convenient swipe actions.

Although simple, it provides all the essential features, making it a good starting point. If you find yourself needing more advanced functionality, consider exploring the apps introduced below.

Gmail

email app for iPhone iPad : Gmail

https://workspace.google.com/intl/en/gmail

Download on the App Store
Supported OS/DevicesiPhone, iPad, Android, Web
Free PlanYes
Paid PlanNo
Supported ServicesGmail, iCloud, Outlook, Hotmail, Live, Office365, Yahoo!
Supported ProtocolsIMAP: Yes, POP3: No

Many people use the Gmail app, but it can also be configured to work with non-Gmail email accounts.

It allows easy switching between multiple accounts, and the All Inboxes view is convenient for checking messages from all accounts in one place. The app also includes useful features such as labels, snooze, and customizable swipe actions.

Spark by Readdle

email app Spark by Readdle

https://sparkmailapp.com

Download on the App Store
Supported OS/DevicesiPhone, iPad, Apple Watch, Apple Vision, Mac, Windows, Android
Free PlanYes
Paid PlanPremium Individual : $4.99/month billed annually
Premium Teams : $6.99/month billed annually
Supported ServicesGmail, Outlook, Office 365, Microsoft Exchange, iCloud, Yahoo!, Yahoo! Japan, Kerio Connect
Supported ProtocolsIMAP: Yes, POP3: No

A well-known free email app available for iPhone and iPad, Spark rose to prominence as an alternative when once-popular apps like Sparrow and Mailbox were discontinued around 2016. On October 4, 2022, a Windows version was also released.

Its features are extensive, including Smart Inbox for automatic categorization, swipe actions, calendar integration, reminders, scheduled sending, and templates. If you are unsure which app to try, Spark is a solid starting point.

The team-oriented feature known as Spark for Teams allows multiple users to collaboratively edit a single email or leave comments on specific messages. These functions are available even on the free plan. Paid plans are also offered, with separate options for individuals and teams.

Airmail

email app for iPhone iPad : Airmail iOS

https://airmailapp.com

Download on the App Store
Supported OS/DevicesiPhone, iPad, iPod touch, Apple Watch, Apple Vision, Mac
Free PlanYes
Paid Plan$4.99/month, $29.99/year
Supported ServicesGmail, Office 365, Microsoft Exchange, iCloud, Yahoo!
Supported ProtocolsIMAP: Yes, POP3: Yes

Alongside Spark by Readdle, this is one of the most well-known email apps for iPhone, iPad, and Mac. Its interface is clean and visually appealing.

On iPhone, the app can be used for free (with feature limitations), though the prompts to upgrade to the Pro version can feel intrusive.

On Mac, a three-day free trial subscription is required when you first start using the app. Once the trial ends, charges will apply, and it cannot be used indefinitely as a free version. Features such as Smart Folders and Custom Actions become unavailable without a paid plan, and integration between Mac and iPhone/iPad is also restricted.

If you are looking for an email app that works on both iPhone and iPad, Spark is generally the better recommendation.

Spike

email app for iPhone iPad : Spike

https://www.spikenow.com

Download on the App Store
Supported OS/DevicesiPhone, iPad, iPod touch, Apple Vision, Mac, Windows, Android, Web
Free PlanYes
Paid PlanPro : from $5/month
Business : from $10/month
Supported ServicesGmail, Outlook, Office 365, Microsoft Exchange, iCloud, Yahoo!, Aol., mail.ru
Supported ProtocolsIMAP: Yes, POP3: No

Spike turns email into a chat-like interface, resembling Slack or messenger apps. Headers and signatures are hidden, making it easier to focus on the main content. Important emails are also highlighted. It includes calendar, tasks, and notes features.

You can also create groups for team communication within Spike. Since most people already use other chat apps, switching entirely to Spike may be difficult. Still, if you often go back and forth with the same contacts, Spike can be very convenient.

BlueMail

email app for iPhone iPad : BlueMail

https://www.bluemail.me

Download on the App Store
Supported OS/DevicesiPhone, iPad, iPod touch, Apple Vision, Mac, Windows, Android, Linux
Free PlanYes
Paid PlanBlueMail Plus : $5/month, $49/year
Business Pro : $12/month, $99/year
Supported ServicesGmail, Outlook, Office 365, Microsoft Exchange, iCloud, Yahoo!, Aol.
Supported ProtocolsIMAP: Yes, POP3: Yes

BlueMail supports a wide range of platforms and includes most features for free. It allows you to merge multiple accounts into a single inbox. The app also includes a calendar and a unique Kanban-style “Read Later” feature.

BlueMail : read later

Personally, I find the UI a little clunky and not as refined as other apps, but if you’re looking for a no-cost option, it’s worth a try.

Canary Mail

email app for iPhone iPad : Canaly Mail

https://canarymail.io

Download on the App Store
Supported OS/DevicesiPhone, iPad, iPod touch, Apple Watch, Mac, Windows, Apple Vision, Android
Free PlanYes
Paid PlanGrowth:$3/month
Pro+:$10/month
Supported ServicesGmail, Office 365, Microsoft Exchange, iCloud, Yahoo!
Supported ProtocolsIMAP: Yes, POP3: No

Canary Mail is an email application focused on security and productivity. One of its key features is end-to-end encryption (with PGP support), enabling secure communication. In addition, it offers AI-powered intelligent inbox management and automatic sorting of important emails, helping users handle their email more efficiently.

The user interface is simple and intuitive, with support for multiple account integration and calendar synchronization. The paid plan provides more advanced encryption options and customization features, making it a suitable choice for users who want to prioritize privacy while improving work efficiency.

Email Apps for iPhone and iPad with Free Trials

The following are paid email apps, but they come with a free trial period. You can try them out at no cost before deciding whether to purchase.

Polymail

email app for iPhone iPad : Polymail

https://polymail.io

Download on the App Store
Supported OS/DevicesiPhone, iPad, iPod touch, Apple Vision, Mac, Windows
Free PlanYes (7-Day Free Trial)
Paid PlanBasic: $10/month
Premium: $24/month
Enterprise: $49/month
Supported ServicesGmail, Outlook, Office 365, iCloud, Yahoo!, FastMail
Supported ProtocolsIMAP: Yes, POP3: No

Polymail is built for team productivity, offering shared inboxes and co-editing features. Personally, I don’t find the team tools particularly appealing, but being able to share directly to Slack and Asana is convenient. Out of all the apps I tested, I liked Polymail’s UI the best. At $10/month, it may be worth it even for personal use.

Excluded Email Apps

Here we introduce email applications that were not included as recommendations, taking into account factors such as functionality and availability.

Microsoft Outlook

email app for iPhone iPad : Outlook

https://www.microsoft.com/en-us/microsoft-365/outlook/email-and-calendar-software-microsoft-outlook

Download on the App Store
Supported OS/DevicesiPhone, iPad, Apple Watch, Mac, Windows, Android, Web
Free PlanYes
Paid PlanSubscription to Microsoft 365
Supported ServicesMicrosoft account, Gmail, Yahoo!, iCloud, and others
Supported ProtocolsIMAP: Yes, POP3: Yes

Microsoft Outlook is a comprehensive email application that is widely used around the world. In addition to sending and receiving emails, it offers features such as calendar, task management, and integrated contact management, making it suitable for both business and personal use. It also allows you to manage multiple accounts in one place and comes with powerful search capabilities and robust spam protection.

One of its major strengths is its high compatibility with Microsoft 365, enabling seamless integration with Word, Excel, Teams, and other services.

Many people may be using Outlook, but there are plenty of other email applications that are more convenient. I encourage you to try the ones introduced in this article.

Unibox

email app for iPhone iPad : Unibox

https://www.uniboxapp.com

Download on the App Store
Supported OS/DevicesiPhone, iPad, iPod touch, Mac, Apple Vision
Free PlanYes
Paid PlanYes
Supported ServicesGmail, Outlook, iCloud, Yahoo!
Supported ProtocolsIMAP: Yes, POP3: Yes

This email application has a unique concept: instead of grouping messages by subject as is common, it organizes them by sender.

The Mac trial version (15 days) can be downloaded from the developer’s website rather than the App Store. On iOS, the free version adds “Sent by Unibox” when composing emails (removal requires upgrading to the paid version).

The official website has not been updated for years and is no longer accessible. Although it is still available for download from the App Store, we recommend considering other email applications.

Discontinued Email Apps

The following email apps have unfortunately been discontinued.

Newton Mail

The service was discontinued on July 31, 2024.

email app for iPhone iPad : Newton Mail

https://newtonhq.com

Supported OS/DevicesiPhone, iPad, Mac, Windows, Linux, Android
Free PlanYes (14-Day Free Trial)
Paid Plan$49.99/year
Supported ServicesGmail, Outlook, Office 365, Microsoft Exchange, iCloud, Yahoo!
Supported ProtocolsIMAP: Yes, POP3: No

Originally released as CloudMagic, it was renamed to Newton Mail in 2016 and gained attention for its fast search capabilities. After going through multiple shutdowns and relaunches, the service was finally discontinued on July 31, 2024.

Personally, I find it frustrating that you cannot view the message list and the email content on the same screen. On the other hand, it supports a unified inbox for multiple accounts and includes features like snooze and scheduled sending. With its modern UI, it’s worth a try if you’re interested.

Conclusion

Based on my experience testing the above email apps, Spark by Readdle is recommended as it offers more advanced features than the default Mail app on iPhone/iPad or Gmail. One of its appealing points is that it is fully functional even in the free version.

I encourage you to explore and find the email app that best suits your own usage environment and preferences.