SIMSme – Your secure messenger

SIMSme – Your secure messenger


Sending messages with SIMSme is completely safe and private — no eavesdropping possible! SIMSme is a free messenger app with real end-to-end encryption — guaranteed by Deutsche Post. Download now!

The first one million users receive free access to the self-destruction feature for messages!

SIMSme was awarded the 'Trusted App' seal for highly secure apps by mediaTest digital in cooperation with TÜViT.

# Do you like sharing photos with your friends, but don't want them to be accessible on the Internet forever?

# Are you looking for a free messenger that provides a high degree of data security?

# Do you prefer to send encrypted voice messages?

# Do you require a fast communication method for work purposes, but find that traditional chat services are not safe enough for business secrets? Would you prefer if your professional communication was encrypted?

# Are you looking for a service for your children to use that you can unreservedly trust with personal information?

SIMSme offers all the features that you have come to expect from a modern and advanced messaging app – and much more:

REAL END-TO-END ENCRYPTION
Your data remains YOUR data. Messages are encrypted on the sender's device and can only be decrypted on the recipient's device. Even we, the operators, cannot view your messages on our own servers.

FREE FOREVER
Save on fees compared to traditional SMS or other messengers.

SELF-DESTRUCTING MESSAGES
With SIMSme, you can either set an expiration date, or make your messages, photos or other content only available for a certain period of time. Our "self-destruction" feature serves to keep private matters truly private!

VOICE MESSAGES
Now you can also send voice messages to your contacts - no eavesdropping possible!

MULTIMEDIA
Send photos, videos, contacts and locations - encrypted, of course!

NO EXTRA PHONE BOOK
SIMSme uses your phone/address book to connect you to your contacts. The phone numbers in your phone book are anonymized and compared to our user database in an encrypted manner. A connection is only established if we can find both your contact and yourself on our service. Contacts who have not yet signed up to use SIMSme will never be saved on our server. Guaranteed.

SERVERS LOCATED IN GERMANY
The SIMSme servers are located in Germany and will stay there. Of course, this also means that your data has to be handled in accordance with German Data Protection Guidelines!

Download SIMSme now and stay up to date at all times – in both your professional and private lives.

Do you have any questions, suggestions or comments regarding SIMSme? We look forward to receiving your feedback! Please contact us at [email protected]

Recent changes:
Thank you very much for your helpful feedback! With version 1.1 we are publishing our first feature release. New in this version:
- Voice messages - Press and hold the microphone icon to record a voice message
- Links in chats are clickable
- Numerous performance improvements.
- Crashes ('oops!') are much more seldom
- and by popular request: smilies are now directly integrated!
Add to list
Free
65
3.3
User ratings
9313
Installs
100,000+
Concerns
2
File size
14160 kb
Screenshots
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About SIMSme – Your secure messenger
Sending messages with SIMSme is completely safe and private — no eavesdropping possible! SIMSme is a free messenger app with real end-to-end encryption — guaranteed by Deutsche Post. Download now!

The first one million users receive free access to the self-destruction feature for messages!

SIMSme was awarded the 'Trusted App' seal for highly secure apps by mediaTest digital in cooperation with TÜViT.

# Do you like sharing photos with your friends, but don't want them to be accessible on the Internet forever?

# Are you looking for a free messenger that provides a high degree of data security?

# Do you prefer to send encrypted voice messages?

# Do you require a fast communication method for work purposes, but find that traditional chat services are not safe enough for business secrets? Would you prefer if your professional communication was encrypted?

# Are you looking for a service for your children to use that you can unreservedly trust with personal information?

SIMSme offers all the features that you have come to expect from a modern and advanced messaging app – and much more:

REAL END-TO-END ENCRYPTION
Your data remains YOUR data. Messages are encrypted on the sender's device and can only be decrypted on the recipient's device. Even we, the operators, cannot view your messages on our own servers.

FREE FOREVER
Save on fees compared to traditional SMS or other messengers.

SELF-DESTRUCTING MESSAGES
With SIMSme, you can either set an expiration date, or make your messages, photos or other content only available for a certain period of time. Our "self-destruction" feature serves to keep private matters truly private!

VOICE MESSAGES
Now you can also send voice messages to your contacts - no eavesdropping possible!

MULTIMEDIA
Send photos, videos, contacts and locations - encrypted, of course!

NO EXTRA PHONE BOOK
SIMSme uses your phone/address book to connect you to your contacts. The phone numbers in your phone book are anonymized and compared to our user database in an encrypted manner. A connection is only established if we can find both your contact and yourself on our service. Contacts who have not yet signed up to use SIMSme will never be saved on our server. Guaranteed.

SERVERS LOCATED IN GERMANY
The SIMSme servers are located in Germany and will stay there. Of course, this also means that your data has to be handled in accordance with German Data Protection Guidelines!

Download SIMSme now and stay up to date at all times – in both your professional and private lives.

Do you have any questions, suggestions or comments regarding SIMSme? We look forward to receiving your feedback! Please contact us at [email protected]

Recent changes:
Thank you very much for your helpful feedback! With version 1.1 we are publishing our first feature release. New in this version:
- Voice messages - Press and hold the microphone icon to record a voice message
- Links in chats are clickable
- Numerous performance improvements.
- Crashes ('oops!') are much more seldom
- and by popular request: smilies are now directly integrated!

User reviews of SIMSme – Your secure messenger
Write the first review for this app!
Android Market Comments
A Google User
4 days ago
Aborts setup after entering the phone number. (Nexus 4, android 5.0)
A Google User
Nov 8, 2014
Nice idea, too many bugs, missing features, currently broken Good idea, nice to have servers in Germany. Unfortunately the app is horribly slow and compared to competitors lacking many features, like customization of notifications etc. Doesn't work anymore after the last patch. I'm getting the oops screen every time I try to write something and get kicked back to the login screen.
A Google User
Oct 28, 2014
"Ups..." Endlosschleife Nach ein bis zwei Tagen Funktion nicht mehr zu gebrauchen,hängt sich auf-neuinstallieren bringt keine verbesserung. Als wärs der erste Messenger, schlecht!!!!!! So keine Konkurrenz zu WA. 18.10.14 Anderes handy, anderes Problem: aus der APP heraus lassen sich keine Fotos machen-> "oops". Update wär mal prima!!!!!!! Update 28.10.: beim öffnen jedesmal "ups..."; Nachrichten vervielfachen sich selbsttätig. Immer noch superbuggy!!!!
A Google User
Oct 25, 2014
Good app Just have to see for yourself...
A Google User
Oct 18, 2014
"Ups..." Endlosschleife Nach ein bis zwei Tagen Funktionz nicht mehr zu gebrauchen,hängt sich auf-neuinstallieren bringt keine verbesserung. Als wärs der erste Messenger, schlecht!!!!!! So keine Konkurrenz zu WA. 18.10.14 Anderes handy, anderes Problem: aus der APP heraus lassen sich keine Fotos machen-> "oops". Update wär mal prima!!!!!!!