Comparison

Criptext Secure Email 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

Criptext Secure Email

This email service prioritizes your privacy with end-to-end encryption and no data collection. Your inbox is stored solely on your device, ensuring only you and your recipients can access your messages. The open-source nature allows for verification of its security claims.

Highlights
  • End-to-end encryption
  • No data collection
  • Local inbox storage
  • Open source code
  • Easy to use interface
Read full description

Finally, an email service that's built around your privacy. Get your @criptext.com email address and see what it's like to have peace of mind and privacy in every email you send. Features: +End-to-end Encryption: Criptext uses the open source Signal Protocol library to encrypt your emails. Your emails are locked with a unique key that‘s generated and stored on your device alone, which means only you and your intended recipient can read the emails you send. +No data collection: unlike every other email service out there, Criptext doesn't store your emails in its servers. Instead, your entire inbox is stored exclusively on your device. +Open Source: our source code is open for everyone to see that Criptext actually works the way it's advertised. You don't have to trust us, you can verify for yourself: https://github.com/Criptext +Easy to use: our app is designed to work as simple as any other email app — so much so, you'll forget how secure it is. Get Criptext and see how easy it is to email with more security and privacy!

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

Criptext Secure Email4 screens
black.com4 screens

Verdict

The call

The clearest difference is rating: Criptext Secure Email at 4.7 against black.com's 3.6. Criptext Secure Email also leads on in-app purchases (none vs 1) and ratings volume (1.2K vs 9). black.com's advantage is review sentiment (67% vs 56%). On price, update cadence, ads 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. black.com sells 1 in-app purchase, starting at $4.99 per month. Criptext Secure Email asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Criptext Secure Email holds the better App Store score, 4.7 against 3.6. That said, the two scores are not equally well evidenced: Criptext Secure Email has 1.2K ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 56% of Criptext Secure Email's written reviews are positive against 67% of black.com's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Criptext Secure Email ships an update every 3 weeks, black.com every 6 weeks. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.

Scorecard6 real differences · 4 level
Criptext Secure Email versus black.com: the parameters behind the verdict, then further details
ParameterCriptext Secure Emailblack.com
PriceFreeFree
Rating4.7 (1.2K ratings) — better3.6 (9 ratings)
Positive reviews56.5% of reviews66.7% of reviews — better
Number of ratings1.2K — better9
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.2 — better16.4
Further details — not scored
Size64 MB14 MB
Age rating4+4+
DeveloperCriptext Inc.black.com GmbH

Customer experience

Criptext Secure Email

All ratings1,215 ratings
Positive91.8%
Neutral3.0%
Negative5.2%
Written reviews85 reviews
Positive56.5%
Neutral4.7%
Negative38.8%

black.com

All ratings9 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews9 reviews
Positive66.7%
Neutral11.1%
Negative22.2%

Bugs and requests

Criptext Secure Email

Reported bugs

5 issues
  • App freezes on startup
  • Sync issues between devices
  • Emails not received or delayed
  • Attachment upload/download failures
  • Password reset problems

Requested features

5 requests
  • Dark mode option
  • Advanced search and filtering
  • Calendar and task management integration
  • Improved backup and export options
  • Support for more email providers and aliases

black.com

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Criptext Secure Email

No in-app purchases

1 purchases

black.com

Subscriptions1
  • Membership$4.991 Month

Questions

Is Criptext Secure Email free?
Criptext Secure Email is free to download, with no in-app purchases.
Is black.com free?
black.com is free to download, with in-app purchases available.
Which has better reviews, Criptext Secure Email or black.com?
Criptext Secure Email is rated higher. Criptext Secure Email averages 4.7 out of 5 from 1.2K ratings, while black.com averages 3.6 from 9 ratings.
Do Criptext Secure Email or black.com have ads?
Neither Criptext Secure Email nor black.com shows ads.
Which is updated more often, Criptext Secure Email or black.com?
Criptext Secure Email ships an update every 3 weeks, and black.com every 6 weeks. Most recently, Criptext Secure Email was updated on October 9, 2026 and black.com on October 3, 2026.

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