Chain Reaction
v2.9 · 5.1 MB · code 29
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File information
UpdatedFeb 15, 2026
PublishedNov 10, 2019
Packagecom.BuddyMattEnt.ChainReaction
Versionv2.9 (29)
Size5.1 MB
MD54ae7bfa94a42f574156b917a618dc4cd
Min SDK21
Malware scanTRUSTED
Signature SHA15B:4E:4E:C1:CE:2D:15:2A:D5:3D:48:E7:1C:68:BB:D9:4C:E6:CE:4C
SignerCN=Matthew Gray, OU=Development, O=Buddy-Matt Entertainment, L=Chippenham, ST=Wiltshire, C=GB
Total downloads10,000,000
This version10,000,000
DeveloperRention Software Srl
Age ratingEveryone
What's new in v2.9
Fullscreen/insets fixes for better screen fit + touch alignment; main menu now supports system dark mode; CPU (medium/hard) tweaked to avoid repetitive corner moves.
Security scan
TRUSTED
- Developer signature verified 2026-02-06
- Signature SHA1 5B:4E:4E:C1:CE:2D:15:2A:D5:3D:48:E7:1C:68:BB:D9:4C:E6:CE:4C
- File MD5 4ae7bfa94a42f574156b917a618dc4cd
How to install Chain Reaction v2.9 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 5.1 MB of free storage.
- Grab com.BuddyMattEnt.ChainReaction_29.apk — hit the Download button above (5.1 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 4ae7bfa94a42f574…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.BuddyMattEnt.ChainReaction_29.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=Matthew Gray, OU=Development, O=Buddy-Matt Entertainment, L=Chippenham, ST=Wiltshire, C=GB. 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 Chain Reaction — tap Open on the install screen, or find the Chain Reaction icon in your app drawer.
Common install errors for Chain Reaction
- "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.