Continuous Attention Test
v1.4 · 28.3 MB · code 10
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File information
UpdatedJul 9, 2020
PublishedJul 9, 2020
Packagecom.NRHB.CAT
Versionv1.4 (10)
Size28.3 MB
MD50600446d1e8f75485883e222fa4c1ab5
Min SDK16
ABIsx86, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA173:A1:03:F6:57:14:6A:4C:0C:E4:6A:5D:FC:C5:AD:C6:A8:20:56:D0
SignerO=NRHB
Total downloads5,000
This version5,000
DeveloperNeurorehabilitation and Brain Research Group
Age ratingEveryone
What's new in v1.4
Update for new Android version
Security scan
TRUSTED
- Developer signature verified 2020-08-06
- Scanned for malware 2021-01-04 20:23:57
- Signature SHA1 73:A1:03:F6:57:14:6A:4C:0C:E4:6A:5D:FC:C5:AD:C6:A8:20:56:D0
- File MD5 0600446d1e8f75485883e222fa4c1ab5
How to install Continuous Attention Test v1.4 on Android API 16+
Takes about 2 minutes. You'll need roughly 28.3 MB of free storage.
- Grab com.NRHB.CAT_10.apk — hit the Download button above (28.3 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 0600446d1e8f7548…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.NRHB.CAT_10.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 O=NRHB. 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 Continuous Attention Test — tap Open on the install screen, or find the Continuous Attention Test icon in your app drawer (this build targets x86/armeabi-v7a/arm64-v8a devices).
Common install errors for Continuous Attention Test
- "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 16 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 x86/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.