Ranking updated
Best email apps in 2026
Gmail is the default for a Google account, with strong spam filtering, undo send and Gemini to summarise long emails. Outlook brings every account and calendar into one app and works with Exchange, Gmail, Yahoo and iCloud. Spark puts all your accounts in one smart inbox where mail from real people rises to the top. Proton Mail is encrypted email from Switzerland that nobody but you can read.
How we picked: an email app has to handle more than one account or protect your mail, filter spam and run on iPhone and Android. We checked each app’s own App Store description and whether it lists Ukrainian in the UA App Store.
For a Google account
Gmail blocks spam, phishing and malware before they reach your inbox, lets you undo a send for up to 30 seconds and manages your newsletter subscriptions. Summary cards show packages, events, bills and trips. Gemini in Gmail summarises long emails, drafts replies and searches your inbox, and you can add accounts from other providers.
Mail and calendar in one place
Outlook collects all your email accounts and calendars, sorts messages you need to act on from everything else, and lets you share your availability with a tap. You can attach files from OneDrive or Dropbox without downloading them and edit Word, Excel or PowerPoint attachments. With a Microsoft 365 plan, Copilot summarises long threads and helps you write.
One smart inbox for every account
Spark connects Gmail, Outlook, iCloud, Yahoo and any IMAP account in a single inbox where mail from real people stays on top and newsletters are grouped below. You can schedule emails to send later, mute threads, pre-screen new senders with Gatekeeper, and use its AI to summarise threads, draft replies and translate.
Private, encrypted email
Proton Mail gives you a @proton.me address and encrypts your whole inbox end to end, so no one but you can read it. It shows no targeted ads, can send password-protected emails to anyone, and keeps mail tidy with folders, labels and automatic categories.
Which one to choose
On a Google account: Gmail. Mail and work calendar together: Outlook. Several addresses in one inbox: Spark. Privacy first: Proton Mail. All four list Ukrainian in the UA App Store. Torn between the two biggest? See Gmail vs Outlook.
| App | Best for | Platforms | Price | Other accounts |
|---|---|---|---|---|
| GmailApp StoreGoogle Play | Google accounts, spam filtering, Gemini | iOS, Android | free | yes, from other providers |
| OutlookApp StoreGoogle Play | mail and calendars together, Office attachments | iOS, Android | free, Copilot with Microsoft 365 | Exchange, Outlook.com, Gmail, Yahoo, iCloud |
| SparkApp StoreGoogle Play | one smart inbox for every account | iOS, Android | free to download | Gmail, Outlook, iCloud, Yahoo, any IMAP |
| Proton MailApp StoreGoogle Play | end-to-end encrypted email | iOS, Android | free to download | Proton accounts |
Frequently asked questions
Which email app can hold several accounts?
Spark and Outlook both bring Gmail, Outlook, iCloud and Yahoo accounts into one app, and Gmail can add accounts from other providers too.
What is the most secure email app?
Proton Mail encrypts your whole inbox end to end, so no one but you can read it, and can send password-protected emails.
Can I unsend an email?
In Gmail you can undo a send for up to 30 seconds. Spark lets you schedule emails to send later instead.