Duolingo - Learn Languages Free v3.16.1
APK · 8.9 MB · version code 266 · Android 4.3+ · uploaded Feb 2, 2016
- Same certificate as v3.78.2, which matches Google Play Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v3.106.5, uploaded Mar 12, 2020 — about 4 years after this one.
- Size: this file is 8.9 MB; the latest is 19.7 MB (10.9 MB larger).
- Android: this version needs Android 4.3+; the latest needs Android 4.4+. Use this one if your device runs an older Android release.
- The latest version asks for 12 more permissions: View Wi-Fi connections, Run foreground services, Modify audio settings, Launcher update count (custom), In-app purchases (Google Play Billing), Google Play install referrer, Launcher read settings (custom), Launcher update shortcut (custom)….
- The latest version no longer asks for: Messaging receive (custom), Duolingo receive adm message (custom).
File information
- Version
- v3.16.1 (266)
- Uploaded
- Feb 2, 2016
- Size
- 8.9 MB
- Requires
- Android 4.3+ (API 18)
- CPU support
- x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit, MIPS, MIPS 64-bit
- Google Play services
- Required
- Screen
- Small screens and larger
- Android TV
- Supported
- MD5
- f203ad7d2038aa4c83be3340d87a307d
- Signing certificate (SHA-1)
- A0:0B:B7:D9:2E:38:90:9C:2F:6C:04:A8:05:58:89:0E:52:94:9C:D9
- Signed by
- CN=Vicki Cheung, O=Duolingo
- File name
- com-duolingo-266-17539126-f203ad7d2038aa4c83be3340d87a307d.apk
- Package
- com.duolingo
- Downloads (all versions)
- 500M+
- Age rating
- PEGI 3 · Everyone
What's new in v3.16.1
Bug fixes and performance improvements.
Permissions (11)
This version requests 11 permissions, 3 of them sensitive.
- Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
- Control vibration android.permission.VIBRATE
- Duolingo receive adm message (custom) com.duolingo.permission.RECEIVE_ADM_MESSAGE
- Full network access android.permission.INTERNET
- Messaging receive (custom) com.amazon.device.messaging.permission.RECEIVE
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Push messaging (app-defined) com.duolingo.permission.C2D_MESSAGE
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Certificate issued to “Duolingo” This is the certificate of the Google Play version.
- Same certificate as v3.78.2, which matches Google Play v3.78.2
Store checks
- Developer signature under review May 21, 2025
- Antivirus scan passed Apr 8, 2020
- Uploaded by “snah” Silver tier · 43,908 followers · uploading since 2013
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (6 other versions compared). AAPKs doesn't scan files itself.
How to install Duolingo - Learn Languages Free on Android 4.3+
You'll need about 17.7 MB of free space.
- Download the APK — tap Download APK above (8.9 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-duolingo-266-17539126-f203ad7d2038aa4c83be3340d87a307d.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be f203ad7d2038aa4c83be3340d87a307d. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Duolingo - Learn Languages Free — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 4.3+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit, MIPS, MIPS 64-bit only. Devices with other processors can't install it.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.