Comparison

Zero Inbox vs HEY Email

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

Head to head
About

Zero Inbox

This email application streamlines inbox management with customizable multi-action swipe gestures. Effortlessly process emails by assigning multiple tasks to a single swipe, such as archiving, trashing, or sending to a to-do list. Enjoy a fast and intuitive email experience.

Highlights
  • Multi-action swipe gestures
  • Customizable swipe actions
  • Fast loading speed
  • Integration with Todoist
  • Smart avatar loading
  • Dark mode
Features
Read full description

Zero Inbox is an email app designed for zeroing your inbox via enjoyable swipe actions. Unlike traditional email's swipe action can only allow one action per swipe, we provide multi-action swipe for each direction, empower you to process your email effortlessly on daily basis. For example, for swiping right, you can choose - Swipe right-down-right to push the email to Todoist - Swipe straight right to archive - Swipe right-up-right to trash We also worked hard to make the app to provide blazing fast loading speed. There are more awesome features to come in the following updates: - Customizable swipe actions - In mail swipe action (like Tinder but for email) - Multi-step swipe (one swipe can do many things like Mark read + Archive + push to Todoist) - Smart avatar (load sender's avatar from known email list or public avatar database) - Dark mode

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.

Screenshots

Zero Inbox3 screens
HEY Email4 screens

Verdict

The call

The clearest difference is rating: HEY Email at 4.6 against Zero Inbox's 3.7. HEY Email also leads on ratings volume (4.3K vs 3) and update cadence (every 10 days vs every 3 weeks). Zero Inbox's advantage is monetization model (free vs subscription) and iOS requirement (12.0 vs 17.2). On price, ads, in-app purchases and device support 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 3, so its average is the more settled of the two. Written reviews point the same way: 50% of Zero Inbox's written reviews are positive against 61% of HEY Email's.

UpkeepUpdate frequency

Zero Inbox ships an update every 3 weeks, HEY Email every 10 days. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

Scorecard6 real differences · 4 level
Zero Inbox versus HEY Email: the parameters behind the verdict, then further details
ParameterZero InboxHEY Email
PriceFreeFree
Rating3.7 (3 ratings)4.6 (4.3K ratings) — better
Positive reviews50.0% of reviews60.8% of reviews — better
Number of ratings34.3K — better
Update frequencyEvery 3 weeksEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterSubscription
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better17.2
Further details — not scored
Size27 MB138 MB
Age rating4+4+
DeveloperLaunch Platform LLC37Signals LLC

Customer experience

Zero Inbox

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

HEY Email

All ratings4,324 ratings
Positive91.7%
Neutral1.8%
Negative6.5%
Written reviews309 reviews
Positive60.8%
Neutral9.4%
Negative29.8%

Bugs and requests

Zero Inbox

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

Zero Inbox

No in-app purchases

None

HEY Email

No in-app purchases

Questions

Is Zero Inbox free?
Zero Inbox is free to download, with no in-app purchases.
Is HEY Email free?
HEY Email is free to download, with no in-app purchases.
Which has better reviews, Zero Inbox or HEY Email?
HEY Email is rated higher. Zero Inbox averages 3.7 out of 5 from 3 ratings, while HEY Email averages 4.6 from 4.3K ratings.
Do Zero Inbox or HEY Email have ads?
Neither Zero Inbox nor HEY Email shows ads.
Which is updated more often, Zero Inbox or HEY Email?
Zero Inbox ships an update every 3 weeks, and HEY Email every 10 days. Most recently, Zero Inbox was updated on October 9, 2026 and HEY Email on October 14, 2026.

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