Estimate and Invoice Maker
v8.1 · 337.9 KB · code 8
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File information
UpdatedJan 8, 2026
PublishedMay 7, 2021
Packagecom.exercise.estimatesapp
Versionv8.1 (8)
Size337.9 KB
MD59dca1e4699f8748ab1e0d29523959040
Min SDK21
Malware scanTRUSTED
Signature SHA1D0:6A:B5:B5:A5:A8:F3:74:BC:1E:50:09:83:A4:A6:90:3A:83:E2:BE
SignerCN=IW Tech Mobile, OU=Web, O=IW Technologies LLC, L=Grand Rapids, ST=MI, C=49546
Total downloads5,000
This version5,000
DeveloperIWTech Mobile
Age ratingEveryone
What's new in v8.1
Added Printing
Security scan
TRUSTED
- Developer signature verified 2026-01-08
- Signature SHA1 D0:6A:B5:B5:A5:A8:F3:74:BC:1E:50:09:83:A4:A6:90:3A:83:E2:BE
- File MD5 9dca1e4699f8748ab1e0d29523959040
How to install Estimate and Invoice Maker v8.1 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 337.9 KB of free storage.
- Grab com.exercise.estimatesapp_8.apk — hit the Download button above (337.9 KB). 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 9dca1e4699f8748a…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.exercise.estimatesapp_8.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=IW Tech Mobile, OU=Web, O=IW Technologies LLC, L=Grand Rapids, ST=MI, C=49546. 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 Estimate and Invoice Maker — tap Open on the install screen, or find the Estimate and Invoice Maker icon in your app drawer.
Common install errors for Estimate and Invoice Maker
- "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.