Sum - Math Challenge

Name: Sum - Math Challenge
Availability: InStock
Author: Cyber Sky

v4.0.1 · 6.3 MB · code 11

4fc72612bf0cc5f6422d45a4ce4f178a TRUSTED

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UpdatedJun 7, 2024

PublishedMar 18, 2021

Packagecybersky.sum

Versionv4.0.1 (11)

Size6.3 MB

MD54fc72612bf0cc5f6422d45a4ce4f178a

Min SDK17

Malware scanTRUSTED

Signature SHA181:39:D4:3E:B1:07:5F:CF:E6:92:DE:00:CE:11:97:4A:1F:E2:D2:00

SignerCN=Rajat Vaghani, O=Cyber Sky

Total downloads10,000

This version10,000

DeveloperCyber Sky

Age ratingEveryone

*Huge* update:

- Improvements across the board

- UI Changes

- Few tiny bugs squashed

- Added support for latest Android OS'

TRUSTED

Takes about 2 minutes. You'll need roughly 6.3 MB of free storage.

Grab cybersky.sum_11.apk — hit the Download button above (6.3 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 4fc72612bf0cc5f6…. Any difference means the file is corrupted or tampered — delete and re-download.
Open the APK — tap the download notification, or find cybersky.sum_11.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=Rajat Vaghani, O=Cyber Sky. 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 Sum - Math Challenge — tap Open on the install screen, or find the Sum - Math Challenge icon in your app drawer.

Common install errors for Sum - Math Challenge

"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.