SIMSme – Your secure messenger

SIMSme – Your secure messenger


Sending messages with SIMSme is completely secure and private — no eavesdropping possible! SIMSme is a free messenger app with true end-to-end encryption — guaranteed by Deutsche Post, the German postal service. Download now!

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 do not want them to be accessible on the Internet forever?

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

# Would you like to be able to send encrypted voice messages as well?

# Do you require a rapid communication method for work purposes, but find that traditional chat services are not secure enough for business secrets? Would you prefer your professional communications to be encrypted?

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

TRUE 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 text messages or other messengers.

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

VOICEMAIL
Now you can also send voicemail 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 anonymised and compared to our user database in an encrypted manner. A connection is only established if we can find both you and your contact 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
SIMSme's servers are located in Germany and will stay there. Of course, this also means that your data will 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 life.

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:
We are looking forward to providing you with a wide range of improvements in this update.
- Multiple images can be sent at the same time. You can now select the image quality you want.
- The new channel categories give you a better overview of all your channels.
- The push messages from channels are sent with a preview text.
- The Channel menu allows you to recommend your channels and to manage notifications.
- A number of errors have been rectified.
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Free
68
3.4
User ratings
12643
Installs
500,000+
Concerns
2
File size
18142 kb
Screenshots
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About SIMSme – Your secure messenger
Sending messages with SIMSme is completely secure and private — no eavesdropping possible! SIMSme is a free messenger app with true end-to-end encryption — guaranteed by Deutsche Post, the German postal service. Download now!

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 do not want them to be accessible on the Internet forever?

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

# Would you like to be able to send encrypted voice messages as well?

# Do you require a rapid communication method for work purposes, but find that traditional chat services are not secure enough for business secrets? Would you prefer your professional communications to be encrypted?

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

TRUE 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 text messages or other messengers.

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

VOICEMAIL
Now you can also send voicemail 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 anonymised and compared to our user database in an encrypted manner. A connection is only established if we can find both you and your contact 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
SIMSme's servers are located in Germany and will stay there. Of course, this also means that your data will 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 life.

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:
We are looking forward to providing you with a wide range of improvements in this update.
- Multiple images can be sent at the same time. You can now select the image quality you want.
- The new channel categories give you a better overview of all your channels.
- The push messages from channels are sent with a preview text.
- The Channel menu allows you to recommend your channels and to manage notifications.
- A number of errors have been rectified.

Android Market Comments
A Google User
Aug 23, 2015
Password Please make it possible to enter the password only at device boot.
A Google User
Aug 23, 2015
Dankeschön Tschüß
A Google User
Aug 23, 2015
Bigger text & faster updates needed I like the idea but it's a bit slow and conversations get out of kilter. Not quite 'instant' messaging.
A Google User
Aug 10, 2015
Too good to be true? It works too well - a completely free, server processed, end to end encrypted messaging service that detects that I'm in the UK (even when using VPN), sends me a validation SMS to my UK phone, comprises German engineering and works efficiently and effectively. I'm impressed. It's a really great service - unbelievably good - but I'm a bit suspicious of the intention behind the app and guess it will soon be "monetised". Silent Circle/Silent Text charges $10 a month for this.
A Google User
Aug 9, 2015
Great app Its a really great app the only problem is it's a bit slow every now and then. A side of that it works perfectly everywhere I use it for work purposes with a team of international users and it worked everywhere in the world between the United States Europe and Africa