Comparison

FlowCrypt vs Swismail

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

Head to head
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/

About

Swismail

A secure email service designed to evolve with future technological trends. Protect your private conversations by downloading this application.

Highlights
  • Secure email service
  • Technologically evolving
  • Future trend adaptation
  • Private conversation security
Features
Read full description

An secure email service which evolves technologically with Future trends.Secure your conversations private, by downloading app.

Screenshots

FlowCrypt2 screens
Swismail4 screens

Verdict

The call

The clearest difference is review sentiment: FlowCrypt at 50% against Swismail's 0%. FlowCrypt also leads on ratings volume (3 vs 1). Swismail's advantage is rating (5.0 vs 4.0) and update cadence (every 5 weeks vs every 4 months). On price, ads, in-app purchases and monetization model 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

Swismail holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews complicate that: 50% of FlowCrypt's written reviews are positive against 0% of Swismail's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

FlowCrypt ships an update every 4 months, Swismail every 5 weeks. The most recent releases landed on October 15, 2026 and October 2, 2026 respectively.

Scorecard5 real differences · 5 level
FlowCrypt versus Swismail: the parameters behind the verdict, then further details
ParameterFlowCryptSwismail
PriceFreeFree
Rating4.0 (3 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings3 — better1
Update frequencyEvery 4 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013 — better
Further details — not scored
Size28 MB90 MB
Age rating4+4+
DeveloperFlowCrypt a. s.Anisoft

Customer experience

FlowCrypt

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

Swismail

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

FlowCrypt

No in-app purchases

None

Swismail

No in-app purchases

Questions

Is FlowCrypt free?
FlowCrypt is free to download, with no in-app purchases.
Is Swismail free?
Swismail is free to download, with no in-app purchases.
Which has better reviews, FlowCrypt or Swismail?
Swismail is rated higher. FlowCrypt averages 4.0 out of 5 from 3 ratings, while Swismail averages 5.0 from 1 ratings.
Do FlowCrypt or Swismail have ads?
Neither FlowCrypt nor Swismail shows ads.
Which is updated more often, FlowCrypt or Swismail?
FlowCrypt ships an update every 4 months, and Swismail every 5 weeks. Most recently, FlowCrypt was updated on October 15, 2026 and Swismail on October 2, 2026.

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