Serial USB Terminal

Terminal for serial devices connected with USB to serial converter

Kai Morich · de.kai_morich.serial_usb_terminal

Not rated yet 500K+ downloads v1.60 1.6 MB Android 5.0+ PEGI 3 · Everyone

Download APK 1.6 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v1.60 (105)
Updated: Jul 20, 2026 (3 months ago)
APK size: 1.6 MB
Requires: Android 5.0+ (API 21)
CPU support: Any (no native code)
Category: Tools (app)
Listed since: Jun 1, 2021 (at least)
Permissions: 8
Website: kai-morich.de/android
Developer contact: [email protected]

About this APK

Serial USB Terminal is an app by Kai Morich in the Tools category, listed since at least June 2021. It has no native code, so it runs on any Android processor.

Since version 1.56, the APK shrank from 2.2 MB to 1.6 MB and the minimum Android version rose from 4.3 to 5.0. It asks for 8 permissions, none of them sensitive. It asks for the same permissions as version 1.59. The app offers in-app purchases through Google Play.

What's new in v1.60

1.59 2026-06-09 NEW scale font with 2-finger pinch 1.58 2026-05-01 NEW macros w/o newline NEW hex macros with delay 1.57 2025-11-07 FIX copy from main text view with unmodified spaces INFO Android 5.0 as minimum version 1.56 2025-03-17 FIX single CR handling for newline CR+LF setting 1.55 2024-07-21 NEW flow control for FTDI, PL2303, CP210x

Description

From the listing uploaded by “appupdater”.

'Serial USB Terminal' is a line-oriented terminal / console app for microcontrollers, arduinos and other devices with a serial / UART interface connected with a USB to serial converter to your android device. This app supports USB to serial converters based on - FTDI FT232, FT2232, ... - Prolific PL2303 - Silabs CP2102, CP2105, ... - Qinheng CH340, CH341 and devices implementing the USB CDC protocol like - Arduino using ATmega32U4 - Digispark using V-USB software USB - BBC micro:bit using ARM mbed DAPLink firmware To connect USB to serial converters, your android device must support USB OTG aka. USB host mode. Most devices support this today, but in case of issues check with one of the various USB test apps, if host mode is enabled in your android kernel. All features in this app are free. In-App purchase is only used for the 'Donate' option. Looking for source code? Here you find a simplified variant of this app: https://github.com/kai-morich/SimpleUsbTerminal

Version history

5 versions are listed, going back to v1.56. Since v1.57 it requires Android 5.0+.

v1.60 LATEST Jul 20, 2026 1.6 MB TRUSTED v1.59 Jun 10, 2026 1.6 MB TRUSTED v1.58 Aug 1, 2026 1.6 MB TRUSTED v1.57 Feb 5, 2026 2.4 MB TRUSTED v1.56 Sep 18, 2026 2.2 MB TRUSTED

All 5 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Jul 20, 2026.
Certificate issued to “Kai Morich” This is the certificate of the Google Play version.
Same certificate as the 4 other versions checked

Store checks and file details

Developer signature verified Jul 20, 2026
Validated against Google Play Jul 20, 2026
Signed byCN=Kai Morich, ST=Germany, C=DE
Signing certificate (SHA-1)FC:7B:CC:2A:E2:94:11:A2:A9:FB:08:6E:19:E1:C1:F0:DA:FF:FA:DB
File MD5f65d7098c42d658338e5b60152f41811
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 (4 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (8)

Serial USB Terminal requests 8 permissions, none of them sensitive.

Foreground service connected device android.permission.FOREGROUND_SERVICE_CONNECTED_DEVICE
Foreground service remote messaging android.permission.FOREGROUND_SERVICE_REMOTE_MESSAGING
Full network access android.permission.INTERNET
In-app purchases (Google Play Billing) com.android.vending.BILLING
Internal broadcast protection (app-defined) de.kai_morich.serial_usb_terminal.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Run foreground services android.permission.FOREGROUND_SERVICE
Show notifications android.permission.POST_NOTIFICATIONS
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch

Serial USB Terminal APK: questions and answers

Is there a version of Serial USB Terminal for older Android phones?

The current version needs Android 5.0 or later. Version 1.56 is the newest listed build that installs on Android 4.3 and later. Get version 1.56 · 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 Serial USB Terminal free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the Serial USB Terminal 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 4 other versions checked. After downloading, check that the file's MD5 is f65d7098c42d658338e5b60152f41811.