Comparison

Reddcrypt vs Swismail

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

Head to head
About

Reddcrypt

Encrypt your email communications effortlessly with this app. It offers end-to-end and zero-knowledge encryption, making it easy for anyone to send sensitive information securely on their smartphone or tablet. Enjoy enhanced privacy with a focus on user comfort and robust security.

Highlights
  • End-to-end encryption
  • Zero knowledge encryption
  • Easiest handling
  • Use existing email address
  • Automatic encryption
  • 100% made in Germany
Features
Read full description

Too complicated, too elaborate, uncomfortable to handle – The reasons for not using S/MIME or PGP are diverse. With REDDCRYPT these arguments are a thing of the past as everyone is capable of encrypting their email communication from now on. With the REDDCRYPT app for smartphones and tablets, even when you´re on the go. With REDDCRYPT we pursue the goal to make the world a little more secure. That is why we offer email encryption for everyone, both companies and single users. Our main focus is the best possible user comfort without cuts to security. At a glance: • You can continue to use your existing e-mail address • End-to-end encryption • Zero knowledge encryption • Easiest handling • 100% made in Germany • German servers This is how REDDCRYPT works: REDDCRYPT automatically encrypts your emails on your device before they are being send. Thus, your emails and their contents remain private. This way you can securely send sensitive information via email. You authenticate yourself on the REDDRYPT app with your email address and a password. A key pair comprising of public key and private key is automatically generated. Your private key is then encrypted with a password hash and uploaded to our servers together with your public key. Sounds too complicated? Don’t worry as most of this happens in the background. You only need to enter your email address and choose a password to generate the key pair. Writing an email happens locally on your device. Why is this important you may ask? Because only you can read the contents of the email as the process happens locally. Before sending the email it is automatically encrypted on your device. If the recipient is also a REDDCRYPT user, the encryption takes place with the public key of the recipient. This means that you don’t have to take action, as everything happens automatically in the background. If the recipient is not a user of REDDCRYPT yet, you will have to define a passphrase for this first mail with which the recipient can decrypt the mail. To make sure that only the intended recipient can read your email. you can disclose this passphrase to the recipient e.g. via sms or phone call. To be able to read the email the recipient authenticates on the REDDCRYPT app, as well. If he already has access and the email has been encrypted with this public key, then the recipient can open, read and answer your mail right away. If he didn’t have access yet, he will have to generate his own key pair to through his email address and a chosen password. Afterwards he can see your encrypted email which can be encrypted by entering the passphrase you have disclosed to the recipient earlier (e.g. via sms or phone call). This passphrase is only necessary for the decryption of the first email. With every email that comes afterwards the encryption and decryption process takes places automatically in the background. Highest user comfort and highest security – this is REDDCRYPT.

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

Reddcrypt4 screens
Swismail4 screens

Verdict

The call

Reddcrypt and Swismail both sit at 5.0 stars, but that hides the real split: 100% of Reddcrypt's written reviews are positive against 0% of Swismail's. Reddcrypt also leads on iOS requirement (10.0 vs 13). Swismail's advantage is update cadence (every 5 weeks vs every 18 months). On price, rating, ratings volume and ads 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

On the App Store both sit at effectively the same score — 5.0 for Reddcrypt against 5.0 for Swismail. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews are what separate them: 100% of Reddcrypt's written reviews are positive against 0% of Swismail's.

UpkeepUpdate frequency

Reddcrypt ships an update every 18 months, Swismail every 5 weeks. The most recent releases landed on September 13, 2026 and September 10, 2026 respectively.

Scorecard3 real differences · 7 level
Reddcrypt versus Swismail: the parameters behind the verdict, then further details
ParameterReddcryptSwismail
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 18 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better13
Further details — not scored
Size169 MB90 MB
Age rating4+4+
DeveloperREDDOXX GmbHAnisoft

Customer experience

Reddcrypt

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Swismail

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

In-app purchases

None

Reddcrypt

No in-app purchases

None

Swismail

No in-app purchases

Questions

Is Reddcrypt free?
Reddcrypt 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, Reddcrypt or Swismail?
Reddcrypt and Swismail are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Reddcrypt or Swismail have ads?
Neither Reddcrypt nor Swismail shows ads.
Which is updated more often, Reddcrypt or Swismail?
Reddcrypt ships an update every 18 months, and Swismail every 5 weeks. Most recently, Reddcrypt was updated on September 13, 2026 and Swismail on September 10, 2026.

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