Smart PostCard
v2.3.0 · 66.4 MB · code 55
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File information
UpdatedMar 26, 2026
PublishedNov 4, 2020
Packagelu.post.smartpostcard
Versionv2.3.0 (55)
Size66.4 MB
MD575c5d444247bf20a4b9cca7ba62afeaf
Min SDK29
ABIsarmeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA199:7E:84:CC:C6:01:8F:37:D2:9E:40:8C:B2:B4:44:AF:CD:D3:17:77
SignerCN=Domi Maes, O=djmdigital, L=Vis?, ST=Li?ge, C=BE
Total downloads10,000
This version10,000
DeveloperPOST Luxembourg
Age ratingEveryone
What's new in v2.3.0
This update of Smart Postcard improves compatibility with Android 16 and includes several stability enhancements. Enjoy a smoother and more reliable experience when sending your postcards directly from your device. Thank you for using Smart Postcard and for your continued support!
Security scan
TRUSTED
- Developer signature verified 2026-03-26
- Signature SHA1 99:7E:84:CC:C6:01:8F:37:D2:9E:40:8C:B2:B4:44:AF:CD:D3:17:77
- File MD5 75c5d444247bf20a4b9cca7ba62afeaf
How to install Smart PostCard v2.3.0 on Android 10+
Takes about 2 minutes. You'll need roughly 66.4 MB of free storage.
- Grab lu.post.smartpostcard_55.apk — hit the Download button above (66.4 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 75c5d444247bf20a…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find lu.post.smartpostcard_55.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=Domi Maes, O=djmdigital, L=Vis?, ST=Li?ge, C=BE. 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 Smart PostCard — tap Open on the install screen, or find the Smart PostCard icon in your app drawer (this build targets armeabi-v7a/arm64-v8a devices).
Common install errors for Smart PostCard
- "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 10 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.
- Works on one phone but not another — this build ships armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.