Optics Physics
v1.4.9 · 3.3 MB · code 9
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File information
UpdatedMar 21, 2023
PublishedMar 21, 2023
Packagelearnersseries.physics.optics
Versionv1.4.9 (9)
Size3.3 MB
MD52036587155b17dc1287cd7c497f89bdd
Min SDK17
Malware scanTRUSTED
Signature SHA162:DA:FF:AD:B9:97:63:FF:B6:E7:48:F3:7F:14:D0:7E:FF:D7:63:EA
SignerCN=Optics Physics
Total downloads100,000
This version100,000
DeveloperLearner's Series
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2023-03-21
- Scanned for malware 2023-03-21 06:46:06
- Signature SHA1 62:DA:FF:AD:B9:97:63:FF:B6:E7:48:F3:7F:14:D0:7E:FF:D7:63:EA
- File MD5 2036587155b17dc1287cd7c497f89bdd
How to install Optics Physics v1.4.9 on Android API 17+
Takes about 2 minutes. You'll need roughly 3.3 MB of free storage.
- Grab learnersseries.physics.optics_9.apk — hit the Download button above (3.3 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 2036587155b17dc1…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find learnersseries.physics.optics_9.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=Optics Physics. 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 Optics Physics — tap Open on the install screen, or find the Optics Physics icon in your app drawer.
Common install errors for Optics Physics
- "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 17 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.