Published by Flipdog Solutions, LLC

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Why should I report an Issue with FlipdogSolutions Crypto Plugin?

  1. AppContacter will directly Email your issue/feedback to an apps's customer service once you report an issue and with lots of issues reported, companies will definitely listen to you.
  2. Pulling issues faced by users like you is a good way to draw attention of Flipdog Solutions, LLC to your problem using the strength of crowds.
  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.
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About FlipdogSolutions Crypto Plugin

1. The current version supports the existing email application MailDroid and gives it support for S/MIME and openPGP.

2. The Flipdog Encryption Plugin was built to add onto existing Flipdog Solutions applications to give them enhanced security.

3. NOTE: This is a plugin library for existing Flipdog applications and will be of no use without the main application installed.

4. The built in file browser needs access to read certificate files or pgp keys from your SD card in order to import them into the app. 2.

5. The Flipdog Encryption Plugin is approved classified under the provisions of ECCN 5D992. c pursuant to Section 742. 15(b)(1) of the EAR.

6. Current features are focused on MailDroid, but it will soon expand to include other Flipdog Solution apps and will improve over time.

7. Import private and public keys for PGP (. asc files, PubRing. gpg, SecRing. 4. 1.

8. The internet permission is required for S/MIME to check against the certificate authority and for the HKP implementation to look for PGP keys. 3.

9. Import private and public certificates for S/MIME (. crt, . cert, . cer, . pem, and . 2.

10. Currently, you can send email, write email and read email with PGP, and PGP/MIME as well as sMIME. 1.

11. With openPGP, it supports Inline PGP and PGP/MIME under openPGP.

FlipdogSolutions Crypto Plugin Customer Insights

1. I would like to buy Maildroid Pro but this plugin in its current state is not a useful GPG solution and therefore I will not use Maildroid further on.It is unable to import renewed or newer certificate & keep getting old which i deleted from crypto & local storage i tried clean cache & data but no success also it has Usability bug when i switch to password manager to fill password for signing or encrypting mail via crypto plugin, crypto plugin UI just don't wait and assumes no pwd or null....this needs to be corrected for smooth operations and for adoption by common users who need hassle free working of signing, encryption, etc it needs urgent fix.

2. "THIS FILE FORMAT IS NOT SUPPORTED: NULL"I can't import s/mime certificates or verify signed emails on Android 11Okay what key format again? I have tried everything..It doesnt workK9 mails Open Keychain support Yubikey NFC interface to do PGP email Signing and Encryption.

3. Please update the app so I can use encryption with Maildroid again!Not working on android 11 due to lack of new storage permission support.GIVES AN ERROR WHEN TRYING TO IMPORT .ASC FILE.

4. Otherwise I might give up SMIME certs and start using PGP certs on Open Keychain instead.I am searching for an alternative to K9/OpenKeyChain with Exchange support (EWS) and found in Maildroid a solution.

5. Not usable on Android 11 due to missing storage permission implementation as others wrote.

6. However the crypto plugin is barebone at best and is missing important features compared to OpenKeyChain.

7. S/MIME certificate cannot be imported in any format, so this app's core feature doesn't work.

8. Might be an issue with modern android versions.

9. This is good because the Yubikey acts as a Smart card feature.

10. The downside is that it only supports PGP and not SMIME cert.

11. If this app supported Yubikey I'd be more inclined to pay for this app.

Steps to Troubleshoot & Fix FlipdogSolutions Crypto Plugin Issues

1. Fix FlipdogSolutions Crypto Plugin Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart FlipdogSolutions Crypto Plugin: Restarting the app will resolve most errors.
  2. Update the FlipdogSolutions Crypto Plugin App. Here is how:
    1. On Android goto PlayStore » Search for "FlipdogSolutions Crypto Plugin" » Open FlipdogSolutions Crypto Plugin » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for FlipdogSolutions Crypto Plugin » click "UPDATE".
  3. Clear FlipdogSolutions Crypto Plugin app cache: Clearing cached data will force your app to retrieve the latest data directly from FlipdogSolutions Crypto Plugin servers.
    1. On Android, goto Settings » Apps » Select "FlipdogSolutions Crypto Plugin" » click Storage » click "Clear Cache".
  4. Check FlipdogSolutions Crypto Plugin app permissions. If any of these permissions required to use your device's features are disenabled, FlipdogSolutions Crypto Plugin might not work.
  5. Uninstall and reinstall FlipdogSolutions Crypto Plugin. If nothing else has worked, completely uninstall FlipdogSolutions Crypto Plugin then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing FlipdogSolutions Crypto Plugin not working


2. Fix FlipdogSolutions Crypto Plugin Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make FlipdogSolutions Crypto Plugin be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to FlipdogSolutions Crypto Plugin not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, FlipdogSolutions Crypto Plugin may not be able to connect to the Internet when running in the background.

Reported Issues