Comparison

black.com vs FlowCrypt

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

Head to head
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

About

FlowCrypt

Easily encrypt your emails and attachments with PGP for enhanced privacy on Gmail. This app simplifies end-to-end encryption, making it accessible even without technical knowledge of cryptography. Secure your communications and files effortlessly.

Highlights
  • End-to-end PGP email encryption
  • Secure attachment encryption
  • Key generation and secure storage
  • Encrypted drafts
  • Password-protected encrypted messages
  • Compatibility with OpenPGP standards
Features
Read full description

Simple end-to-end encryption to secure email and attachments on Gmail. - Sets up in a few taps - Lets you use PGP encryption by generating a private and public key directly on your iPhone or iPad - Your keys are stored securely in iOS Keychain - You can choose to save your key passphrase on device or enter it as needed - Drafts are encrypted before saving to Gmail - Send messages encrypted with password to users who don't have PGP There are a few ways this encryption app stands out: - Easy email encryption that just works. - Anyone can use it. We've worked to ensure every single way possible that email encryption can be confusing has been removed, so that more people can encrypt Gmail. - You can send encrypted attachments. Text files, powerpoint slides, excel documents, image files, any and all files and attachments can be sent privately. - No understanding of cryptography needed. Don’t know what a public key is? You don’t need to know to secure your email with FlowCrypt. Power users with an existing public key are also served. Whether you have struggled with other ways to encrypt email or you are trying email encryption for the first time, you will find this a very simple secure email solution thanks to PGP. PGP stands for Pretty Good Privacy it's the standard for secure email encryption. This Gmail end-to-end encryption app lets you encrypt Gmail messages anytime your email security and privacy matters, without having to think about it. Most email providers don't give you the level of privacy that we should expect. That is why we created the FlowCrypt app that lets you encrypt google email without needing to learn anything new. Email PGP encryption has been historically a very difficult area, which few people used because there was no easy PGP solution around. If you were asked for a Public Key or a PubKey so that others can encrypt messages for you, just install FlowCrypt and you will find your new Public Key in the settings. Also, file encryption is fully supported. To encrypt an attachment just open a compose screen, add the recipient's email, and attach a file. If they have encryption set up on their end, that's it - just send the encrypted email out. PGP or the OpenPGP is a standard for encrypted communication used by more than 10 million people. FlowCrypt is compatible with most OpenPGP software out there. Looking forward to your feedback! Email us at human@flowcrypt.com as we're improving the app every day. Website: https://flowcrypt.com/ Source code: https://github.com/FlowCrypt/ Documentation: https://flowcrypt.com/docs/

Screenshots

black.com4 screens
FlowCrypt2 screens

Verdict

The call

The clearest difference is in-app purchases: FlowCrypt at none against black.com's 1. FlowCrypt also leads on rating (4.0 vs 3.6). black.com's advantage is review sentiment (67% vs 50%) and update cadence (every 6 weeks vs every 4 months). On price, ads, device support and iOS requirement 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. FlowCrypt asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FlowCrypt holds the better App Store score, 4.0 against 3.6. Both are backed by a comparable volume of ratings — 9 and 3 respectively. Written reviews complicate that: 67% of black.com's written reviews are positive against 50% of FlowCrypt's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

black.com ships an update every 6 weeks, FlowCrypt every 4 months. The most recent releases landed on September 17, 2026 and August 16, 2026 respectively.

Scorecard6 real differences · 4 level
black.com versus FlowCrypt: the parameters behind the verdict, then further details
Parameterblack.comFlowCrypt
PriceFreeFree
Rating3.6 (9 ratings)4.0 (3 ratings) — better
Positive reviews66.7% of reviews — better50.0% of reviews
Number of ratings9 — better3
Update frequencyEvery 6 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size14 MB28 MB
Age rating4+4+
Developerblack.com GmbHFlowCrypt a. s.

Customer experience

black.com

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

FlowCrypt

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

In-app purchases

1 purchases

black.com

Subscriptions1
  • Membership$4.991 Month
None

FlowCrypt

No in-app purchases

Questions

Is black.com free?
black.com is free to download, with in-app purchases available.
Is FlowCrypt free?
FlowCrypt is free to download, with no in-app purchases.
Which has better reviews, black.com or FlowCrypt?
FlowCrypt is rated higher. black.com averages 3.6 out of 5 from 9 ratings, while FlowCrypt averages 4.0 from 3 ratings.
Do black.com or FlowCrypt have ads?
Neither black.com nor FlowCrypt shows ads.
Which is updated more often, black.com or FlowCrypt?
black.com ships an update every 6 weeks, and FlowCrypt every 4 months. Most recently, black.com was updated on September 17, 2026 and FlowCrypt on August 16, 2026.

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