Yo-Yo Intermittent Test
v3.05 · 4.7 MB · code 99
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File information
UpdatedNov 18, 2025
PublishedJan 14, 2021
Packagerudy.android.yoyo
Versionv3.05 (99)
Size4.7 MB
MD55b9696d00a3f822ff66a490e5a859cdc
Min SDK26
Malware scanTRUSTED
Signature SHA15F:A5:8F:A1:EE:3A:79:44:FB:0B:90:AE:70:CD:54:C0:F1:82:01:62
SignerCN=Rudy Fernandes, L=Waterloo, ST=ON, C=CA
Total downloads100,000
This version100,000
DeveloperRuval Enterprises
Age ratingEveryone
What's new in v3.05
Maintenance release
Security scan
TRUSTED
- Developer signature verified 2025-11-18
- Signature SHA1 5F:A5:8F:A1:EE:3A:79:44:FB:0B:90:AE:70:CD:54:C0:F1:82:01:62
- File MD5 5b9696d00a3f822ff66a490e5a859cdc
How to install Yo-Yo Intermittent Test v3.05 on Android 8.0 Oreo+
Takes about 2 minutes. You'll need roughly 4.7 MB of free storage.
- Grab rudy.android.yoyo_99.apk — hit the Download button above (4.7 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 5b9696d00a3f822f…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find rudy.android.yoyo_99.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=Rudy Fernandes, L=Waterloo, ST=ON, C=CA. 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 Yo-Yo Intermittent Test — tap Open on the install screen, or find the Yo-Yo Intermittent Test icon in your app drawer.
Common install errors for Yo-Yo Intermittent 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 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.