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Last updated on: 2026-05-06
Android Apps > Tools > ykDroid
ykDroid icon

ykDroid

1.3
Yussuf Khalil
4.92
120 reviews
10,000+
Downloads
Free

YubiKey challenge-response USB and NFC driver

Not recently updated — last update was on 2023-06-04. This app may no longer be actively maintained.
ykDroid Screenshot 1 of 4
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About ykDroid

ykDroid is a tools app developed by Yussuf Khalil.

How many times has ykDroid been downloaded?

ykDroid has been downloaded 18 thousand times. In the last 30 days, the app was downloaded 55 times.

What is the rating of ykDroid?

ykDroid is rated 4.92 out of 5 stars, based on 120 ratings.

Is ykDroid free?

ykDroid is free to download. The APK download size is 49.39 kB. The latest version available is 1.3. The last update was on June 4, 2023.

What are the requirements for ykDroid?

ykDroid requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play June 2018.

Description
ykDroid is a USB and NFC driver for Android that exposes the challenge-response feature of YubiKeys for use by other Android apps.
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More data about ykDroid

Price Free to download
Total downloads 18 thousand
Recent downloads 55
Rating 4.92 based on 120 ratings
Ranking Not ranked
Version 1.3
APK size 49.4 KB
Number of libraries 0
Designed for Android 5.0+
Suitable for Everyone
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ykDroid compared with similar apps

Keywords missing from this app

Tag Qr Data Tags Reader App Code Scanner Support Read Information Scan Device Features Codes Barcode Scanning Write Tools Mobile Card Security Apps View Tool Rfid Reading Multiple Access Feature Info Writer Bluetooth Check Cards History Mifare Phone Enabled Secure Ndef Types Wifi Authentication Application Devices Save Instantly Share

Google Play Rating history and histogram

110
9
0
0
0

Downloads over time

ykDroid has been downloaded 18 thousand times. Over the past 30 days, it has been downloaded 55 times.

Changelog of ykDroid

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Developer information for Yussuf Khalil

Yussuf Khalil

dev@pp3345.net

N/A

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Comments on ykDroid for Android

★★★★☆ A Google user · Nov 27, 2018
This app works well IF you set it up right. The problem is knowing what to do as there is no guide for setup with a YubiKey as mentioned below. In case it helps others out there, this is what my setup was on a device running Android 9 with a YubiKey 5 NFC. I used KeePass to set up the challenge response function with my YubiKey along with a strong Master Key. If I did the same with KeePass 2.40, the database just would not work with Keepass2Android and ykDroid. Also, as another reviewer mentioned, make sure the Encryption Algorithm is set to AES-256 and the Key Derivation Function is set to AES-KDF (KDBX 4) in database settings. Then with the Keepass2Android app, make sure your Master Key setting is set to "Password + Challenge-Response for KeePass XC". I couldn't even start the database unlock with any other setting. Once these things were done with the respective software and database file, the app worked seamlessly. With better instructions for the less patient among us, I would give it 5 stars, but without, I'll give it 4 for effort and forward-thinking. Thanks for laying the groundwork for a great way to better secure our sensitive information on a mobile platform
★☆☆☆☆ srgiorf · Sep 21, 2019
Useless YubiKey neo support. After many trials it was impossible to open a KeePass database that works without problem on linux and macOS.
★☆☆☆☆ Nolan W · Oct 1, 2018
Doesn't work! I just went to the trouble of fixing a bug in YubiChallenge and had everything working and now Keepass2Android goes and removes support 😑. I have a YubiKey Neo and the nfc challenge/response takes longer than the OS default timeout for a nfc transaction. Please see YubiChallenges bug tracker for more info.
★☆☆☆☆ AzerX · Jul 31, 2023
Didn't even install correctly I think. No icon after installation and didn't help with KeePass....

Google Play Rankings for ykDroid

This app is not ranked

Technologies used by ykDroid

ykDroid is requesting 1 permissions and is using 1 libraries.
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