Comparison

HEY Email vs eM Client

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

HEY Email

This email client streamlines your inbox with features like call-like screening for senders, grouped message organization, and a unified attachment library. It offers unique ways to read emails, manage receipts, and protect your privacy from trackers.

Highlights
  • Screen senders like calls
  • Naturally grouped messages
  • Read multiple emails at once
  • Unified attachment library
  • Set aside emails for later
  • Dedicated receipt management
  • Blocks email trackers
Features
Read full description

It’s “you’ll never go back” better HEY replaces workarounds, messy hacks, and daily frustrations, with built-in workflows, effortless organization, and clever features that levels-up email in meaningful ways. Screen emails like you screen calls You screen your calls, so why can't you screen your emails? With HEY, you can. HEY puts you in complete control of who's allowed to email you. Don't want to hear from someone? Screen them out and won’t hear from them again. Naturally grouped Inboxes are typically an intertwined mess of new and old messages haphazardly mixed together. Yuck. With HEY, new messages are always grouped together at the top, and previously seen emails are always at the bottom. Neat and orderly by default. No need to wade through the inbox jungle with a machete. Spread ’em out, read ’em together Let's say you have 7 unread emails. Why do you have to open one, close one, open one, close one, open one, close one, and so on. It's rediculously inefficient. With HEY, you can open multiple emails at once and just scroll though them, just like you would a newsfeed. It's a revolutionary way to read your emails. You'll never go back to the old way. Find files without pulling your hair out If you’re looking for an attachment, why should you have to find an email first? That’s backwards. With HEY, you get an attachment library that gathers up every attachment you’ve ever received in one organized, siftable place. Just set it aside Sometimes you get emails you need to reference later - travel info, handy links, numbers you need, etc. With HEY, you can 'Set Aside' any email in a neat little pile for easy access whenever you need it. At hand, but out of your face. Put receipts in The Paper Trail Receipts, confirmations, and transactional emails getting in your way? With HEY, you can send those types of emails to The Paper Trail where they'll be out of your way, but easy to find when you need them. Blocking email spies 24/7/365 Many companies track which emails you open, how often you open them, and even where you were when you opened them. It's a massive invasion of your privacy. HEY blocks these trackers and tells you who's spying on you. Fix bad subjects without busting threads If you don’t start the thread, you're often stuck with other people’s generic, non-descriptive email subjects. With HEY, you can rename a subject so it makes sense for you without changing things for the other person. Add private notes to any email thread Conversations may start in email, but they may continue somewhere else. Some emails turn into lunches or calls or video conferences. Where do you put the notes from those - especially if they relate to the initial email conversation? With HEY, you can add personal, private notes (and files) to any thread. This way you keep everything related to the conversation on one page, even if it didn't all happen via email. Notifications you control HEY push notifications are off by default so your phone doesn’t steal your attention every time an inconsequential email hits your inbox. However, HEY lets you selectively turn them on for specific contacts or threads so you don't miss the things you really care about. A built-in ‘Reply Later’ workflow What if you need to reply, but you don't have time right now? With HEY, just click the “Reply Later” button to move an email to a dedicated ‘Reply Later’ pile at the bottom of the screen so you don’t lose or forget it. Stop heavy senders from dominating your inbox When you get lots of emails from someone, they can take over your Inbox. With HEY, you can choose to bundle a sender into a single row. This means no matter how many emails they send you, they'll only take up a single row in your Inbox. Clean, controlled, and calm. Get off threads without having to ask Stuck on a mega email chain and want off? Good luck asking someone to remove you. With HEY, you can unfollow any thread and replies won’t show up as new emails anymore. Out of your face forever.

About

eM Client

This app unifies email, calendar, tasks, contacts, and notes into a single, AI-enhanced platform. It offers advanced features typically found on desktop, including instant message translation and robust encryption, for seamless management of multiple accounts on your iPhone and iPad.

Highlights
  • AI-enhanced email drafting and replies
  • Unified inbox for email, calendar, tasks, contacts, and notes
  • Instant message translation
  • PGP and S/MIME encryption
  • Quick import from desktop app
  • Mail-tracking pixel detection
  • Snooze and Undo Send features
Read full description

These features include: • Super easy setup including quick import from the desktop app via QR code • AI Support for replies and email drafting • Emails, calendars, tasks, contacts and notes all in one place • Favorite, Global, and search folders to easily manage multiple accounts • Instant message translation • PGP and S/MIME encryption • Tags and Gmail labels support to sort and color-code your messages • Signatures you can choose from and assign to your accounts • QuickText: snippets of text you can quickly insert into your emails • Templates • Messages grouped into conversations • Advanced privacy options • Mail-Tracking pixel detection • Snooze • Watch for reply • Undo Send • Password protection • Online meetings integration • Cloud storage providers integration • Mobile device management (MDM) support and more

Screenshots

HEY Email4 screens
eM Client4 screens

Verdict

The call

The clearest difference is rating: HEY Email at 4.6 against eM Client's 3.7. HEY Email also leads on ratings volume (4.3K vs 42) and review sentiment (60% vs 49%). eM Client's advantage is monetization model (free vs subscription) and iOS requirement (15.0 vs 17.2). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

HEY Email holds the better App Store score, 4.6 against 3.7. That said, the two scores are not equally well evidenced: HEY Email has 4.3K ratings behind it against 42, so its average is the more settled of the two. Written reviews point the same way: 60% of HEY Email's written reviews are positive against 49% of eM Client's.

UpkeepUpdate frequency

HEY Email ships an update every 2 weeks, eM Client weekly. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.

Scorecard5 real differences · 5 level
HEY Email versus eM Client: the parameters behind the verdict, then further details
ParameterHEY EmaileM Client
PriceFreeFree
Rating4.6 (4.3K ratings) — better3.7 (42 ratings)
Positive reviews60.2% of reviews — better48.6% of reviews
Number of ratings4.3K — better42
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationSubscriptionFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.215.0 — better
Further details — not scored
Size138 MB124 MB
Age rating4+4+
Developer37Signals LLCeM Client

Customer experience

HEY Email

All ratings4,325 ratings
Positive91.7%
Neutral1.8%
Negative6.5%
Written reviews289 reviews
Positive60.2%
Neutral9.3%
Negative30.4%

eM Client

All ratings42 ratings
Positive61.9%
Neutral11.9%
Negative26.2%
Written reviews348 reviews
Positive48.6%
Neutral17.8%
Negative33.6%

User reviews

HEY Email

From 4.3K App Store ratings

What we love

  • 🚀 Streamlined email workflow
  • 🔒 Strong privacy focus
  • 👍 Intuitive and user-friendly design
  • 💡 Innovative email organization features
  • 🚀 Fast and responsive app

Room to improve

  • 🐛 Occasional bugs and glitches
  • 🔋 Concerns about offline functionality
  • 💰 Expensive subscription cost
  • 🔍 Limited search and navigation capabilities

eM Client

From 42 App Store ratings

What we love

  • 🚀 Reliable and customizable
  • 🔒 Great privacy and security features
  • 👍 Clean and intuitive interface
  • 🚀 Smooth and fast performance
  • 👍 Seamless sync between desktop and mobile

Room to improve

  • 🐛 Slow email sync and loading issues
  • 🐛 Unreliable push notifications and badge counts
  • 🐛 Inconsistent behavior compared to other email apps
  • 🐛 Bugs and glitches, especially in the initial release
  • 🔋 High battery consumption

Bugs and requests

HEY Email

Reported bugs

2 issues
  • Keyboard issues on iPad
  • Inconsistent behavior when moving between email views

Requested features

3 requests
  • Support for custom email domains
  • More advanced filtering and automation options
  • Improved integration with other apps and services

eM Client

Reported bugs

4 issues
  • Emails not sending immediately
  • Drafts not visible or editable
  • Inconsistent behavior when switching between folders
  • Trouble signing in to multiple Google accounts

Requested features

6 requests
  • Calendar integration
  • Improved background refresh and sync
  • Custom notification sounds
  • Ability to sort emails by sender
  • More customization options
Show 1 more
  • Actions from notifications (archive, mark as read, etc.)

In-app purchases

None

HEY Email

No in-app purchases

None

eM Client

No in-app purchases

Questions

Is HEY Email free?
HEY Email is free to download, with no in-app purchases.
Is eM Client free?
eM Client is free to download, with no in-app purchases.
Which has better reviews, HEY Email or eM Client?
HEY Email is rated higher. HEY Email averages 4.6 out of 5 from 4.3K ratings, while eM Client averages 3.7 from 42 ratings.
Do HEY Email or eM Client have ads?
Neither HEY Email nor eM Client shows ads.
Which is updated more often, HEY Email or eM Client?
HEY Email ships an update every 2 weeks, and eM Client weekly. Most recently, HEY Email was updated on September 24, 2026 and eM Client on September 22, 2026.

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