Reading Trainer: Speed Reading v2.4.3
APK · 42.7 MB · version code 1840 · Android 7.0+ · uploaded Aug 16, 2026
- Signature matches the Google Play version Details
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File information
- Version
- v2.4.3 (1840)
- Uploaded
- Aug 16, 2026
- Size
- 42.7 MB
- Requires
- Android 7.0+ (API 24)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- 539a70c9edf705dfac38057ddd840b82
- Signing certificate (SHA-1)
- 63:B6:90:F3:A9:B2:8E:CA:FD:02:0A:A2:E2:FE:DF:F3:EC:0D:F6:9B
- Signed by
- O=HeKu IT GmbH, L=Garching, C=DE
- File name
- com-heku-readingtrainer-1840-76121553-539a70c9edf705dfac38057ddd840b82.apk
- Package
- com.heku.readingtrainer
- Downloads (all versions)
- 100K+
- Age rating
- PEGI 3 · Everyone
What's new in v2.4.3
This update keeps your training running smoothly. We've fixed push notifications, so your reading training reminders arrive reliably, and you never miss a session. We've also refined the Letter Mixup exercise across all languages for a more accurate practice experience.
Thank you for training with us!
Permissions (18)
This version requests 18 permissions, 2 of them sensitive.
- Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
- Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
- Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
- Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
- Advertising ID com.google.android.gms.permission.AD_ID
- Commondata get common data (custom) com.huawei.appmarket.service.commondata.permission.GET_COMMON_DATA
- Control vibration android.permission.VIBRATE
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Internal broadcast protection (app-defined) com.heku.readingtrainer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Mapsagent read app info (custom) com.samsung.android.mapsagent.permission.READ_APP_INFO
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Read Google service settings com.google.android.providers.gsf.permission.READ_GSERVICES
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Show notifications android.permission.POST_NOTIFICATIONS
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Aug 16, 2026.
- Certificate issued to “HeKu IT GmbH” This is the certificate of the Google Play version.
- Same certificate as the 6 other versions checked
Store checks
- Developer signature under review Aug 16, 2026
- Validated against Google Play Aug 16, 2026
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
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 Reading Trainer: Speed Reading on Android 7.0+
You'll need about 85.5 MB of free space.
- Download the APK — tap Download APK above (42.7 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-heku-readingtrainer-1840-76121553-539a70c9edf705dfac38057ddd840b82.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 539a70c9edf705dfac38057ddd840b82. 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 Reading Trainer: Speed Reading — 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 7.0+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.