Vuforia Chalk
v4.27.0 · 86.9 MB · code 127
Verify you're human
Solve this to start the download.
File information
UpdatedJul 9, 2025
PublishedMar 11, 2021
Packagecom.vuforia.Chalk
Versionv4.27.0 (127)
Size86.9 MB
MD566e20ef861c73af7c359720254473b4d
Min SDK26
ABIsarm64-v8a
Malware scanTRUSTED
Signature SHA179:93:75:D0:DD:D7:5B:90:BE:B3:23:7A:0C:C1:3E:59:2D:13:03:6A
SignerCN=PTC Inc., OU=PTC Inc., O=PTC Inc., L=Needham, ST=MA, C=US
Total downloads50,000
This version50,000
DeveloperPTC Inc.
Age ratingEveryone
What's new in v4.27.0
This release contains incremental fixes and maintenance.
FYI: Chalk will be ceasing operations on Fri, October 31, 2025.
FYI: Chalk will be ceasing operations on Fri, October 31, 2025.
Security scan
TRUSTED
- Developer signature verified 2025-07-09
- Signature SHA1 79:93:75:D0:DD:D7:5B:90:BE:B3:23:7A:0C:C1:3E:59:2D:13:03:6A
- File MD5 66e20ef861c73af7c359720254473b4d
How to install Vuforia Chalk v4.27.0 on Android 8.0 Oreo+
Takes about 2 minutes. You'll need roughly 86.9 MB of free storage.
- Grab com.vuforia.Chalk_127.apk — hit the Download button above (86.9 MB). 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 66e20ef861c73af7…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.vuforia.Chalk_127.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=PTC Inc., OU=PTC Inc., O=PTC Inc., L=Needham, ST=MA, 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 Vuforia Chalk — tap Open on the install screen, or find the Vuforia Chalk icon in your app drawer (this build targets arm64-v8a devices).
Common install errors for Vuforia Chalk
- "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 8.0 Oreo 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.
- Works on one phone but not another — this build ships arm64-v8a native code. Devices with a different CPU will reject it.