Tie Grading Guide

Offers detailed information and training on tie grading.

Western Wood Preservers Institute · com.western_wood_preservers_institute.tie_grading_guide

Not rated yet 100+ downloads v1.0.9 48.7 MB Android 8.1+ PEGI 3 · Everyone

Download APK 48.7 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v1.0.9 (1000009)
Updated: Mar 27, 2026 (6 months ago)
APK size: 48.7 MB
Requires: Android 8.1+ (API 27)
CPU support: x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit, MIPS
Graphics: OpenGL ES 2.0+
Category: Education (app)
Listed since: Apr 22, 2021 (at least)
Permissions: 25 (10 sensitive)
Website: rta.org
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Tie Grading Guide is an app by Western Wood Preservers Institute in the Education category, listed since at least April 2021. It includes native code for x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit and MIPS, so it runs on practically every phone.

Since version 1.0.7, the minimum Android version rose from 7.1 to 8.1. It asks for 25 permissions, 10 of them sensitive, including precise location, camera and record audio. It asks for the same permissions as version 1.0.8. The app offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.

What's new in v1.0.9

Bug fixes

Description

From the listing uploaded by “appupdater”.

The RTA Tie Grading Guide offers detailed information and training on specifications, grades and limiting defects for preservative treated wood rail ties.

Version history

3 versions are listed, going back to v1.0.7. Since v1.0.8 it requires Android 8.1+.

v1.0.9 LATEST Mar 27, 2026 48.7 MB TRUSTED v1.0.8 Sep 4, 2024 48.7 MB TRUSTED v1.0.7 Jun 5, 2024 18.3 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Mar 27, 2026.
Certificate issued to “Maxim Barsuk” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Mar 27, 2026
Validated against Google Play Mar 27, 2026
Signed byCN=Maxim Barsuk
Signing certificate (SHA-1)B4:67:DF:8B:22:64:A6:C0:0C:75:8E:BE:7D:A2:36:BA:0B:26:17:35
File MD5946a9f56b3dda239559f333fb138c219
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 (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (25)

Tie Grading Guide requests 25 permissions, 10 of them sensitive.

Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
Camera Sensitive android.permission.CAMERA
Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
Read contacts Sensitive android.permission.READ_CONTACTS
Read media audio Sensitive android.permission.READ_MEDIA_AUDIO
Read media images Sensitive android.permission.READ_MEDIA_IMAGES
Read media video Sensitive android.permission.READ_MEDIA_VIDEO
Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
Advertising ID com.google.android.gms.permission.AD_ID
Change wifi state android.permission.CHANGE_WIFI_STATE
Control vibration android.permission.VIBRATE
Flashlight android.permission.FLASHLIGHT
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
In-app purchases (Google Play Billing) com.android.vending.BILLING
Prevent the device from sleeping android.permission.WAKE_LOCK
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
Run foreground services android.permission.FOREGROUND_SERVICE
Schedule exact alarms android.permission.SCHEDULE_EXACT_ALARM
Show notifications android.permission.POST_NOTIFICATIONS
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Location android.hardware.location
Microphone android.hardware.microphone
Landscape screen android.hardware.screen.landscape
Touchscreen android.hardware.touchscreen

Tie Grading Guide APK: questions and answers

Is there a version of Tie Grading Guide for older Android phones?

The current version needs Android 8.1 or later. Version 1.0.7 is the newest listed build that installs on Android 7.1 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 1.0.7 · 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 Tie Grading Guide free?

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

Is the Tie Grading Guide 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 2 other versions checked. After downloading, check that the file's MD5 is 946a9f56b3dda239559f333fb138c219.