Knife Steel Composition Chart
v3.99.5 · 780.4 KB · code 42
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File information
UpdatedSep 5, 2025
PublishedMar 23, 2023
Packagezvisoft.stlchmob
Versionv3.99.5 (42)
Size780.4 KB
MD597d9ac36db621558c8853dac6ed09c9c
Min SDK8
Malware scanTRUSTED
Signature SHA18F:73:E1:6A:78:41:9E:3D:4F:08:54:85:53:2F:25:E4:D7:75:E9:A5
SignerCN=Unknown, OU=ZviSoft, O=ZviSoft, L=Cupertino, ST=CA, C=US
Total downloads100,000
This version100,000
DeveloperZviSoft
Age ratingEveryone
What's new in v3.99.5
Fixes missing or clipped search bar on steel list view.
Fixes missing or clipped toolbar on steel list, detail, graph and steel search views.
App compatibility changes.
Target API requirement changes.
Fixes missing or clipped toolbar on steel list, detail, graph and steel search views.
App compatibility changes.
Target API requirement changes.
Security scan
TRUSTED
- Developer signature verified 2025-09-05
- Signature SHA1 8F:73:E1:6A:78:41:9E:3D:4F:08:54:85:53:2F:25:E4:D7:75:E9:A5
- File MD5 97d9ac36db621558c8853dac6ed09c9c
How to install Knife Steel Composition Chart v3.99.5 on Android API 8+
Takes about 2 minutes. You'll need roughly 780.4 KB of free storage.
- Grab zvisoft.stlchmob_42.apk — hit the Download button above (780.4 KB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 97d9ac36db621558…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find zvisoft.stlchmob_42.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Unknown, OU=ZviSoft, O=ZviSoft, L=Cupertino, ST=CA, C=US. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open Knife Steel Composition Chart — tap Open on the install screen, or find the Knife Steel Composition Chart icon in your app drawer.
Common install errors for Knife Steel Composition Chart
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android API 8 or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.