My First App
v1.0 · 1.3 MB · code 1
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File information
UpdatedSep 4, 2025
PublishedFeb 27, 2020
Packagecom.example.myfirstapp
Versionv1.0 (1)
Size1.3 MB
MD5325482f6522a48766e512ec6456d6254
Min SDK21
Malware scanTRUSTED
Signature SHA199:27:4A:F5:C0:75:A0:02:1F:41:55:7E:E6:B5:44:08:AA:49:A7:AB
SignerCN=Duarte Silva, L=Porto, ST=Porto, C=Portugal
Total downloads456
This version456
Developersilvad
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2025-09-04
- Scanned for malware 2020-09-05 20:45:26
- Signature SHA1 99:27:4A:F5:C0:75:A0:02:1F:41:55:7E:E6:B5:44:08:AA:49:A7:AB
- File MD5 325482f6522a48766e512ec6456d6254
How to install My First App v1.0 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 1.3 MB of free storage.
- Grab com.example.myfirstapp_1.apk — hit the Download button above (1.3 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 325482f6522a4876…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.example.myfirstapp_1.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=Duarte Silva, L=Porto, ST=Porto, C=Portugal. 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 My First App — tap Open on the install screen, or find the My First App icon in your app drawer.
Common install errors for My First App
- "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 5.0 Lollipop 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.