Ummaps

It’s a unique app to record the bore profile and stores in the cloud.

Underground Magnetics · com.ugm.android

Not rated yet 5K+ downloads v3.47 UMmaps 82.4 MB Android 8.0+ PEGI 3 · Everyone

Download APK 82.4 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v3.47 UMmaps (93)
Updated: Aug 20, 2026 (2 months ago)
APK size: 82.4 MB
Requires: Android 8.0+ (API 26)
CPU support: Any (no native code)
Graphics: OpenGL ES 2.0+
Category: Productivity (app)
Listed since: Jul 13, 2021 (at least)
Permissions: 21 (9 sensitive)
Website: ummaps.com
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Ummaps is an app by Underground Magnetics in the Productivity category, listed since at least July 2021. It has no native code, so it runs on any Android processor.

Since version 3.8.19ummaps, the minimum Android version rose from 5.0 to 8.0. It asks for 21 permissions, 9 of them sensitive, including precise location, camera and approximate location. It asks for the same permissions as version 3.46 UMmaps.

What's new in v3.47 UMmaps

GPS undulation addition/correction India data center migration General improvements around data collection process

Description

From the listing uploaded by “appupdater”.

Underground Magnetics UMmaps app works with your Android™ mobile device or tablet, allowing you to record rod by rod information such as roll, pitch, depth, temperature. UMmaps eliminates the manual recording of bore log data. Through UMmaps website owner can view the drill job from his computer by logging into the website from home or office in real time. Transcription errors are also minimized as UMmaps lets you share your plan electronically. From UMmaps website, you can email the drill data for reporting.

Version history

5 versions are listed, going back to v3.8.19ummaps. New versions arrive here every few months. Since v3.42 UMmaps it requires Android 8.0+.

v3.47 UMmaps LATEST Aug 20, 2026 82.4 MB TRUSTED v3.46 UMmaps Jul 6, 2026 82.4 MB TRUSTED v3.45 UMmaps Apr 14, 2026 57.9 MB TRUSTED v3.42 UMmaps Jan 21, 2026 57.9 MB TRUSTED v3.8.19ummaps Jan 17, 2026 46.9 MB TRUSTED

All 5 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 20, 2026.
Certificate from Google Play App Signing Google keeps the signing key for the developer, so the certificate carries Google's name.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Aug 20, 2026
Validated against Google Play Aug 20, 2026
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)FD:13:62:D1:25:07:81:2C:DE:A2:B3:9D:34:32:88:F7:99:A1:71:C4
File MD554c9d6a398223d98389db45355909a68
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 (21)

Ummaps requests 21 permissions, 9 of them sensitive.

Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
Bluetooth connect Sensitive android.permission.BLUETOOTH_CONNECT
Bluetooth scan Sensitive android.permission.BLUETOOTH_SCAN
Camera Sensitive android.permission.CAMERA
Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
Control vibration android.permission.VIBRATE
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
Internal broadcast protection (app-defined) com.ugm.android.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Reorder tasks android.permission.REORDER_TASKS
Request delete packages android.permission.REQUEST_DELETE_PACKAGES
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
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

Bluetooth android.hardware.bluetooth
Camera android.hardware.camera
Basic touch input android.hardware.faketouch
Location android.hardware.location
Landscape screen android.hardware.screen.landscape
Portrait screen android.hardware.screen.portrait
Wi-Fi android.hardware.wifi

Ummaps APK: questions and answers

Is there a version of Ummaps for older Android phones?

The current version needs Android 8.0 or later. Version 3.8.19ummaps is the newest listed build that installs on Android 5.0 and later. Get version 3.8.19ummaps · 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 Ummaps 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 54c9d6a398223d98389db45355909a68.