Where are my contacts?

We don’t want access to your contacts, nor do we want to scan your data. That’s why your contact list is empty the first time you open Hoccer. You need to invite your friends to chat.

How do I add contacts?

You can invite friends via SMS or email invitation or by exchanging codes. Please click the „+“ button to start inviting your friends.

NEW: Hoccer In-System-Invitation: From now on, you can add group or nearby acquaintances directly in Hoccer by opening the contacts profile and click “invite as friend”.

How do I accept a contact request?

Click on the hcr-link in your invitation mail or SMS. You can also scan or enter your friend’s invitation code to connect.

Do I have to submit a phone number at any point?

No. We want as little information as possible. Therefore, you neither have to submit your telephone number nor your email address or any other sensitive data.

What is the Hoccer fingerprint?

The fingerprint is a control sum of your public encryption key. For extra security, you can compare this fingerprint with the fingerprint seen in your contact card on your friend’s device and mark it as verified.

Expert information: The key id is the SHA256 hash of the public key truncated to 8 bytes (16 digits hex).

How do I delete messages or conversations?

Messages can be deleted by clicking two seconds on a message or an attachment on iOS. Androids can delete attachments from the device’s storage.

On iOS: A whole conversation can be deleted when opening the corresponding chat and clicking on the action button on the upper right. You can chose between “delete all messages” or “delete all messages not in the current view field”. On Android: Long tab on the chat which’s conversation should be deleted and confirm by tapping the action “delete whole conversation”.

Why is there sometimes a green dot next to my contact?

The green dot indicates that your contact is online. The yellow dot is indication that the Android contact is online but app is running in the

How is Hoccer financed?

Providing business solutions of our technology gives us the possibility to offer our service for free to all private users.

On which platforms can I use Hoccer?

Hoccer is currently available from iOS7 on (iPhone, iPod, iPad) on the Apple App Store and for Android smartphones from Android version 4.0 on the Google Play Store.

Will Hoccer contain the former Hoccer Classic features?

Yes. Hoccer now contains the feature “Nearby” which is based on Hoccer Classics data sharing technology. Hoccer is now able to share data even more spontanious and easier than before.

What is “Nearby”

“Nearby” communication is our spontaneous data sharing feature. No need to connect to unknown peeps: you can interact with all users who reside within a radius up to 100 meters around you and also use Hoccer in nearby mode. Texts and attachments will be transferred safely – just how you are used to it by Hoccer. Plus: messages and attachments can be sent and received gesture-controlled.

Is it safe to exchange messages in “Nearby”

The transfer of all texts, pics, videos or other attachment is secured with Hoccer’s end-to-end encryption.

Please note: When exchanging messages in the “All Nearby”-Group a new user can appear in the group at any time and will be able to receive your messages. Make sure to share confidential content only within a “normal” chat.

How does “Nearby” work?

When you activate nearby mode, your client sends location data to Hoccer’s servers. This data is encrypted during transportation and will be decrypted and stored on the server until you deactivate nearby mode or disconnect. The location data is processed to temporarily connect you with other Hoccer users close to you with activated Nearby mode.

In Nearby mode you can participate in conversations without actually being friend with these users. Your location data will be deleted from our servers as soon as you leave nearby mode.

Why is Hoccer safe?

Hoccer uses several factors, which combined, result in a highly secure service. Here are the most important ones for you summed up:

  • Data minimization. We respect and therefore, protect your privacy as you do not need to indicate a telephone number, your email address or any other sensitive data to use Hoccer.
  • Transport and end-to-end encryption are protecting your messages
  • Hoccer server: Our servers are all located in Germany and are therefore subject to the German data protection law. All messages and attachments are encrypted and only stored on our servers as long as their are in transmission. Afterwards, they are deleted immediately.

What means the encryption?

Please find detailed information on the encryption used in Hoccer in our privacy and security statement.

Will my contact be scanned?

No! Hoccer accesses your address book and you location data only to create encrypted attachment data, and no information from your address book or location data is transferred to our servers in a form we can decipher.

Will Hoccer support Windows/Blackberry/Symbian?

Currently not. But as we are quite ambitious, there will be a lot to come in the future.

Is a WebApp planed?

Not yet.

Is a desktop client planed?

Not yet.

Can I use my Hoccer account on multiple devices?

Not yet, but we are working on it.

Can I migrate my account between an iOS and Android device?


  1. First, open iTunes on your computer.
  2. Open Hoccer on your device and tap on your profile and “edit”.
  3. Scroll down and press “export credentials”. You will be asked to pick a strong password.
  4. Then connect the device to iTunes and go to the device page.
  5. Then select the Apps tab and scroll down to the file sharing section and select Hoccer. In the right hand list you will find the file credentials.json.
  6. Drag and drop it to the desktop.
  7. Now your log-in data is saved on your computer.
  8. To transfer your account information to a new device, you need to connect that new device to iTunes.
  9. Select the device and go to the Apps tab again.
  10. Select Hoccer in the File Sharing section and drag credentials.json from the desktop to the right hand list.
  11. Now launch Hoccer on your new device and go to your profile.
  12. Tab edit and press “import credentials” and enter the password you chose at the beginning of this process.
  13. Relaunch Hoccer and enjoy.


  1. Open Hoccer on your device and tap on settings and „export credentials“.
  2. You will be asked to pick a strong password and tab „OK“.
  3. Then connect the device to your computer or use a file manager app.
  4. You will find a file named „credentials.json“ in the root directory of your device.
  5. Copy that file to your computer or to another device.
  6. Now your log-in data is saved.
  7. To import your credentials to an other device, transfer those credentials to your new phone and make sure that it is located in the root directory.
  8. Start Hoccer and go to “settings” and tap “import credentials”.
  9. Enter now the password you memorized beforehand and tap “OK”.
  10. Now the credentials will be loaded from the imported file and all your contacts should be synchronized.
  11. To be sure, please re-start Hoccer and enjoy!

Please note: You cannot run one account on multiple devices yet!

How long does Hoccer save files on its servers?

Hoccer stores messages as long as they are in transmission. Once a message reached the designated recipient, it is deleted immediately.

Why is Hoccer not open source?

We regularly examine if and when it is making sense, to make our code public. At the moment, the disadvantages out roll the benefits:

  1. We as a small company have to compete with global businesses, which could copy our software and market it, without having invested in the technology. (This problem becomes smaller with a growing user base)
  2. We would not be able to offer our free and pseudonymous service without any
    registration because:
    – User would run Hoccer on their desktops and produce much higher data volumes
    – We would be forced to increase our expenses to be able to exclude “Rogue Clients”
  3. We would be less flexible with regard to our development
  4. Our temporary development process is not that easy to be integrated in an open source structure and don’t to just dump source code to the Internet.

In contrast to those disadvantages for us, there would be a small user base that would benefit. Less than 1% of our users are able to run open source on their operating system. Plus a user could not be 100% sure, that the software running on the device matches the open source code, as you did not produce it yourself. For some users that might help but the majority of users would not profit from it.

Those are the reasons why we let our code be reviewed by independent experts. We are also willing to give qualified third parties insight into our code. In the long run, all these reasons why we do not publish our code today will become volatile.

Android Specific Topics

Some Hoccer features do not work on my phone. Why?

Our apps are programmed to comply with the latest state of the art. Many Hoccer features are dependent on Android-Service-Apps and Android software. To eliminate errors due to outdated applications and Android versions, your Android device should have all the latest software and Google-Service- updates installed.

„Nearby” does not work. / No GPS signal can be found. What to do?

  • Please check if the location services are activated and available.
  • Please update your Android system regularly, so that your device always runs on the latest firmware.

Multiple text message invitations using Google Hangout

In case the recipient does not use “Hangout” the MMS setting for group chats needs to be deactivated. This can be done as follows:

  • Group messages Google Hangouts – contextual menu / „people & options“
  • Go to settings in the „people & options“ menu
  • Choose SMS in settings
  • Select „advanced“ and deactivate „Send MMS to group“

Now all invites will be send to a group via SMS and can also be opened and read by non-Google-Hangout users.

Rooted Devices

Hoccer is optimized for all Android versions starting at 4.0. „rooted devices“ are not included. Please note, that XO could crash due to lacking permissions on rooted devices. Performance issues can also occur.