Echo
v3.0.0 · 408.2 KB · code 19
Verify you're human
Solve this to start the download.
File information
UpdatedApr 18, 2026
PublishedDec 11, 2020
Packageuk.co.projectneon.echo
Versionv3.0.0 (19)
Size408.2 KB
MD50ca7e9dcb8a0f047696cc716a6b50181
Min SDK26
Malware scanTRUSTED
Signature SHA194:91:21:A5:B8:99:13:D4:BF:DF:EF:D1:10:A4:9C:E6:46:71:52:CB
SignerCN=Project Neon, O=Project Neon, L=London, C=GB
Total downloads5,000,000
This version5,000,000
DeveloperProject Neon
Age ratingEveryone
What's new in v3.0.0
It's nearly the New Year, but there's time for a 2022 release:
* Updated to target latest Android SDK version
* Buttons revised to support alternative languages
* Minor UI fix (Record button state was not always clearing correctly)
Wishing everyone a happy 2023!
We'd love your feedback: [email protected]
* Updated to target latest Android SDK version
* Buttons revised to support alternative languages
* Minor UI fix (Record button state was not always clearing correctly)
Wishing everyone a happy 2023!
We'd love your feedback: [email protected]
Security scan
TRUSTED
- Developer signature verified 2026-04-18
- Signature SHA1 94:91:21:A5:B8:99:13:D4:BF:DF:EF:D1:10:A4:9C:E6:46:71:52:CB
- File MD5 0ca7e9dcb8a0f047696cc716a6b50181
How to install Echo v3.0.0 on Android 8.0 Oreo+
Takes about 2 minutes. You'll need roughly 408.2 KB of free storage.
- Grab uk.co.projectneon.echo_19.apk — hit the Download button above (408.2 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 0ca7e9dcb8a0f047…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find uk.co.projectneon.echo_19.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=Project Neon, O=Project Neon, L=London, 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 Echo — tap Open on the install screen, or find the Echo icon in your app drawer.
Common install errors for Echo
- "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 8.0 Oreo 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.