FastField: Field Service Forms v3.9.1
APK · 65.9 MB · version code 201 · Android 6.0+ · uploaded Jan 20, 2026
- Signature matches the Google Play version Details
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Compared with the latest version
The latest version is v3.15.0, uploaded Sep 16, 2026 — about 8 months after this one.
- Size: this file is 65.9 MB; the latest is 75.1 MB (9.2 MB larger).
- Android: this version needs Android 6.0+; the latest needs Android 7.0+. Use this one if your device runs an older Android release.
- The latest version asks for 5 more permissions: Run foreground services, Run at startup, Use biometric hardware, Use fingerprint hardware, Read Google service settings.
- The latest version no longer asks for: Access media location, Read media audio, Read media images, Read media video.
File information
- Version
- v3.9.1 (201)
- Uploaded
- Jan 20, 2026
- Size
- 65.9 MB
- Requires
- Android 6.0+ (API 23)
- CPU support
- x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
- Graphics
- OpenGL ES 2.0+
- Screen
- Small screens and larger
- MD5
- d24a926fb1992ee64889fe2e3a94fd0c
- Signing certificate (SHA-1)
- 97:F6:BA:22:E3:96:54:59:93:AB:F1:A1:7D:17:03:C6:DD:5A:7C:B6
- Signed by
- CN=Merge Mobile, OU=Mobile Development
- File name
- com-mergemobile-fastfield-201-73213895-d24a926fb1992ee64889fe2e3a94fd0c.apk
- Package
- com.mergemobile.fastfield
- Downloads (all versions)
- 100K+
- Age rating
- PEGI 3 · Everyone
What's new in v3.9.1
• New: Task Scheduler feature handling
• New: Task instance lists - Sort by location now sorting by distances from current location
• Fix: Quotes in subform field name breaking sumSubform() calculation from main form
Permissions (23)
This version requests 23 permissions, 9 of them sensitive.
- Access media location Sensitive android.permission.ACCESS_MEDIA_LOCATION
- Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
- Camera Sensitive android.permission.CAMERA
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
- Read media audio Sensitive android.permission.READ_MEDIA_AUDIO
- Read media images Sensitive android.permission.READ_MEDIA_IMAGES
- Read media video Sensitive android.permission.READ_MEDIA_VIDEO
- 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
- 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
- Hide overlay windows android.permission.HIDE_OVERLAY_WINDOWS
- Internal broadcast protection (app-defined) com.mergemobile.fastfield.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Nfc android.permission.NFC
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- 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 Jan 20, 2026.
- Certificate issued to “Merge Mobile” This is the certificate of the Google Play version.
- Same certificate as the 4 other versions checked
Store checks
- Developer signature verified Jan 20, 2026
- Validated against Google Play Jan 20, 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 (4 other versions compared). AAPKs doesn't scan files itself.
How to install FastField: Field Service Forms on Android 6.0+
You'll need about 131.7 MB of free space.
- Download the APK — tap Download APK above (65.9 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-mergemobile-fastfield-201-73213895-d24a926fb1992ee64889fe2e3a94fd0c.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 d24a926fb1992ee64889fe2e3a94fd0c. 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 FastField: Field Service Forms — 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 6.0+). 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 32-bit, ARM 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.