Comparison

OneMail vs black.com

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

Head to head
About

OneMail

This app consolidates multiple email accounts into a single, organized inbox. It offers features like colored account tags, email grouping by date, and a dark mode for enhanced readability. Users can manage folders, filter emails by category, and customize actions for a streamlined email experience.

Highlights
  • Unified inbox for multiple accounts
  • Colored account tags
  • Group emails by date
  • Dark mode
  • HTML formatted signatures
  • Unsubscribe with a tap
  • Customizable swipe actions
Features
Read full description

OneMail is an IMAP multi accounts email app that groups beautifully your emails into one Inbox. With Tag colored accounts you can easily know each email to which account it belongs to. OneMail groups your emails by date so you can easily peek at the received time without the need to enter to the email. With Dark mode you can experience a beautiful new design and eyes comfort in low light environment. OneMail is designed to optimize the synchronization time between your inbox and you email provider. With OneMail you can: - Switch between your accounts and you unified inbox easily. - Send emails with HTML formatted signatures. - Open and send email attachments. - Open and browse compressed files and send uncompressed files individually. - Unsubscribe with a tap. - Easily manage your Inbox by creating, renaming and removing folders. - Easy filter you inbox by categories like Unread, Newsletters, emails with attachments... - Search and select contacts from your phone contacts. - Customize Swipe Actions. - Undo Actions like send, delete, archive... - Snooze Emails - Make OneMail your default email app. With OneMail Plus! you can:  - Add unlimited number of mail accounts. - Receive push notifications from all IMAP providers. OneMail is built over the respect of user privacy and do not store any informations from your emails. All your emails data and headers are stored locally on your device. We will keep improving OneMail so your feedback will be appreciated. You can contact us at support@nouvelware.com Terms and Conditions: https://nouvelware.com/tc

About

black.com

Secure and encrypted email with a personalized @black.com address. Features AI writing tools for effortless composition, unlimited storage, and alias addresses to manage spam. Protects your data with zero-access encryption and app-based two-factor authentication.

Highlights
  • Personalized @black.com email address
  • Zero-access encryption
  • AI-powered email composition
  • Unlimited storage (25GB + annual increase)
  • Spam-free alias addresses
  • App-based two-factor authentication
Features
Read full description

@black.com email address An email address is a reflection of your personal brand. Stand out with your own @black.com address that low-budget alternatives simply can't match. Secure & encrypted email Zero-Access Encryption secures your data with a key derived from your password. This means that not even we can access the contents of your stored emails. Our app-based two-factor authentication protects your account even if your password is compromised. Write emails effortlessly Supercharge your email experience with our integrated AI tools. Let the AI create, correct, optimize, and translate your messages. Unlock a whole new level of productivity and compose polished emails in a few seconds! Completely optional, of course. Unlimited* storage You start with 25 GB and get 2 GB of additional storage every year - forever. With normal usage, you will never run out of space. Alias addresses for a spam-free inbox Memorable and removable alias addresses like redcat42@black.com that you can use for newsletters etc. keep your inbox spam-free - forever. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

OneMail4 screens
black.com4 screens

Verdict

The call

The clearest difference is rating: OneMail at 4.4 against black.com's 3.7. OneMail also leads on update cadence (every 9 days vs every 6 weeks) and ratings volume (298 vs 12). black.com's advantage is review sentiment (73% vs 34%) and ads (none vs shown). On price, in-app purchases, monetization model 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. OneMail sells 4 in-app purchases, starting at $1.99 per month and black.com sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

OneMail holds the better App Store score, 4.4 against 3.7. That said, the two scores are not equally well evidenced: OneMail has 298 ratings behind it against 12, so its average is the more settled of the two. Written reviews complicate that: 34% of OneMail's written reviews are positive against 73% of black.com's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

OneMail ships an update every 9 days, black.com every 6 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 4 level
OneMail versus black.com: the parameters behind the verdict, then further details
ParameterOneMailblack.com
PriceFreeFree
Rating4.4 (298 ratings) — better3.7 (12 ratings)
Positive reviews34.4% of reviews72.7% of reviews — better
Number of ratings298 — better12
Update frequencyEvery 9 days — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.4
Further details — not scored
Size26 MB14 MB
Age rating4+4+
DeveloperNouvelwareblack.com GmbH

Customer experience

OneMail

All ratings298 ratings
Positive87.2%
Neutral1.0%
Negative11.7%
Written reviews61 reviews
Positive34.4%
Neutral16.4%
Negative49.2%

black.com

All ratings11 ratings
Positive72.7%
Neutral0.0%
Negative27.3%
Written reviews11 reviews
Positive72.7%
Neutral9.1%
Negative18.2%

Bugs and requests

OneMail

Reported bugs

15 issues
  • App crashes when adding multiple email accounts
  • Crashes when moving emails to folders
  • Red screen freeze after adding email accounts
  • White blank screen on app launch
  • Snoozed emails reappearing in junk folder
Show 10 more
  • Email blocking feature not working
  • Notifications not working despite settings
  • Cannot send or forward emails
  • Emails disappearing from inbox
  • App crashes on iOS 16.1 and later versions
  • Sync failures with AOL and other providers
  • iPad compatibility issues (crashes on iPad)
  • Hotmail account setup conflicts
  • App flashing back to home screen on iPad
  • Slow performance and random folder navigation errors

Requested features

11 requests
  • Calendar integration with meeting invitations
  • Email printing functionality
  • Bulk delete multiple messages at once
  • Folder creation and management
  • Email aliases for replies
Show 6 more
  • Larger font size customization
  • Evernote integration
  • MacBook Pro support
  • Password visibility toggle during account setup
  • Ability to show additional email providers like mail.com
  • Flagged emails sorting to top of inbox

black.com

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

OneMail

Subscriptions4
  • OneMail Plus$1.991 Month
  • OneMail Plus! Monthly$1.991 Month
  • OneMail Plus$7.991 Year
Show 1 more
  • OneMail Plus! Yearly$7.991 Year
1 purchases

black.com

Subscriptions1
  • Membership$4.991 Month

Questions

Is OneMail free?
OneMail is free to download, with in-app purchases available.
Is black.com free?
black.com is free to download, with in-app purchases available.
Which has better reviews, OneMail or black.com?
OneMail is rated higher. OneMail averages 4.4 out of 5 from 298 ratings, while black.com averages 3.7 from 12 ratings.
Do OneMail or black.com have ads?
OneMail shows ads; black.com does not.
Which is updated more often, OneMail or black.com?
OneMail ships an update every 9 days, and black.com every 6 weeks. Most recently, OneMail was updated on October 25, 2026 and black.com on October 24, 2026.

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