Growsafe Knapsack Spray Calc
Volume-based spray mix calculator - Knapsack or Handgun spray mix calculator
Groundtruth Ltd · com.ionicframework.growsafeconcentration904013
- Signature matches the Google Play version Details
At a glance
- Latest version
- v0.1.2 (27)
- Updated
- Nov 20, 2025 (11 months ago)
- APK size
- 5.9 MB
- Requires
- Android 6.0+ (API 23)
- CPU support
- Any (no native code)
- Category
- Productivity (app)
- Listed since
- Dec 17, 2022 (at least)
- Permissions
- 3
- Website
- groundtruth.co.nz
- Developer contact
- [email protected]
About this APK
Growsafe Knapsack Spray Calc is an app by Groundtruth Ltd in the Productivity category, listed since at least December 2022. It has no native code, so it runs on any Android processor.
Since version 0.0.5, the APK grew from 5.3 MB to 5.9 MB and the minimum Android version rose from 5.0 to 6.0. It asks for 3 permissions, none of them sensitive. Compared with version 0.0.6, it adds 1 new permission: “Control vibration”.
What's new in v0.1.2
Description
From the listing uploaded by “appupdater”.
Version history
3 versions are listed, going back to v0.0.5. Since v0.1.2 it requires Android 6.0+.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Nov 20, 2025.
- Certificate issued to “Groundtruth Ltd” 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 Nov 20, 2025
- Validated against Google Play Nov 20, 2025
- Signed byCN=Daniel Bar-Even, OU=App Development, O=Groundtruth Ltd, L=Paekakariki, ST=Kapiti Coast, C=NZ
- Signing certificate (SHA-1)44:F9:FD:B4:ED:85:94:D3:FC:DE:BF:21:5C:92:B7:C4:A6:5A:51:9A
- File MD5f4827f39541ceba2ba2ea97656f2e662
- 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 (3)
Growsafe Knapsack Spray Calc requests 3 permissions, none of them sensitive.
- Control vibration android.permission.VIBRATE
- Full network access android.permission.INTERNET
- Internal broadcast protection (app-defined) com.ionicframework.growsafeconcentration904013.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Required hardware & features
- Basic touch input android.hardware.faketouch
Growsafe Knapsack Spray Calc APK: questions and answers
Is there a version of Growsafe Knapsack Spray Calc for older Android phones?
The current version needs Android 6.0 or later. Version 0.0.6 is the newest listed build that installs on Android 5.0 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 0.0.6 · 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 Growsafe Knapsack Spray Calc 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 f4827f39541ceba2ba2ea97656f2e662.
