U-OTP+

Service-time password generated by the mobile phone, U-OTP +

ATSolution · com.atsolution.android.uotp2

Not rated yet 1M+ downloads v1.9.5 5.4 MB Android 5.0+ PEGI 3 · Everyone

Download APK 5.4 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v1.9.5 (18)
Updated: Jan 31, 2026 (8 months ago)
APK size: 5.4 MB
Requires: Android 5.0+ (API 21)
CPU support: ARM (legacy), ARM 32-bit, ARM 64-bit
Category: Tools (app)
Listed since: Apr 17, 2021 (at least)
Permissions: 5 (2 sensitive)
Website: u-otp.kr
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

U-OTP+ is an app by ATSolution in the Tools category, listed since at least April 2021. It includes native code for ARM (legacy), ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

Since version 1.9.3, the APK grew from 3 MB to 5.4 MB and the minimum Android version rose from 4.1 to 5.0. It asks for 5 permissions, 2 of them sensitive: read phone status and identity and display over other apps. It asks for the same permissions as version 1.9.3.

What's new in v1.9.5

1. 호환성 개선

Description

From the listing uploaded by “appupdater”.

An upgraded version of U-OTP, U-OTP+ Signing up for U-OTP+ has become simpler. 1. Download and run U-OTP+ to receive a serial number. 2. Register a lock password to use U-OTP+ safely. 3. Enter your serial number and OTP number on the site you want to use to complete your registration. -------------------------------------------------- -------------------------------------------------- ------- Are you worried about your personal information being leaked? Protect your personal information safely with U-OTP, a one-time password that is newly generated each time you log in. * What is U-OTP (Ubiquitous-One Time Password)? - This is a strong security service that logs in by generating and entering a new password each time in addition to the default ID and password. - Existing login: ID + password - U-OTP login: ID + password + one-time password (U-OTP) generated on the mobile phone -------------------------------------------------- -------------------------------------------------- ------- > Required access rights - Phone: Used to check terminal information using mobile phone status and ID reading permission. ※ If you do not agree to the required access rights, you cannot use the service. -------------------------------------------------- -------------------------------------------------- -------

Version history

2 versions are listed, going back to v1.9.3. Since v1.9.5 it requires Android 5.0+.

v1.9.5 LATEST Jan 31, 2026 5.4 MB TRUSTED v1.9.3 Jun 13, 2024 3 MB TRUSTED

All 2 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Jan 31, 2026.
Certificate issued to “ATSolution” This is the certificate of the Google Play version.
Same certificate as the other version checked

Store checks and file details

Developer signature verified Jan 31, 2026
Validated against Google Play Jan 31, 2026
Signed byCN=YounHanKim, OU=Unknown, O=ATSolution, L=Unknown, ST=Seoul, C=ko
Signing certificate (SHA-1)34:06:51:3A:A3:90:A4:AB:0B:75:D0:7C:92:C5:E7:E0:64:ED:8C:86
File MD5f09fe8420f1be178e49754726900012a
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (5)

U-OTP+ requests 5 permissions, 2 of them sensitive.

Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) com.atsolution.android.uotp2.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Portrait screen android.hardware.screen.portrait

U-OTP+ APK: questions and answers

Is there a version of U-OTP+ for older Android phones?

The current version needs Android 5.0 or later. Version 1.9.3 is the newest listed build that installs on Android 4.1 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 1.9.3 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the U-OTP+ APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the other version checked. After downloading, check that the file's MD5 is f09fe8420f1be178e49754726900012a.