sigfy

App for users who are using the contact network service "sigfy"

Fusic CO., LTD. · jp.co.sigfy

Not rated yet 100K+ downloads v3.0.17 83 MB Android 7.0+ PEGI 12 · Low Maturity

Download APK 83 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v3.0.17 (3001701)
Updated: Sep 4, 2026 (1 month ago)
APK size: 83 MB
Requires: Android 7.0+ (API 24)
CPU support: x86 64-bit, ARM 32-bit, ARM 64-bit
Category: Communication (app)
Listed since: Apr 8, 2025 (at least)
Permissions: 30 (3 sensitive)
Website: sigfy.jp
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

sigfy is an app by Fusic CO., LTD. in the Communication category, listed since at least April 2025. It includes native code for x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

It asks for 30 permissions, 3 of them sensitive: camera, approximate location and modify shared storage. It asks for the same permissions as version 3.0.16.

What's new in v3.0.17

一部の不具合を修正しました

Description

From the listing uploaded by “appupdater”.

sigfy is a communication service that connects schools, parents, and local governments. With a simple, easy-to-understand design, it's an app that anyone can use. ◆How to Register When registering, you'll need to fill out a registration form provided by your school or other organization. Adding siblings is also easy. ◆Key Features 1. Checking Messages from the School Push notifications ensure you don't miss any messages. You can also check if messages have been read and search. 2. Requesting Absences or Late Arrivals No need to make phone calls or use the communication book during busy morning hours. 3. Answering Surveys Easily respond to surveys right in the app. No need to worry about forgetting to submit surveys. 4. Responding to and Confirming Scheduling Requests Smoothly arrange schedules for parent-teacher conferences and other events with a simple "yes" or "no" answer. 5. Sibling Registration You can manage all of your siblings' contact information in one app. This makes daily contact confirmation and reporting absences and lateness much easier. ◆What sigfy values For schools and parents "Making time" for more important things We listen closely to the voices of schools and parents and continue to improve our service to make it simpler and easier to use.

Version history

4 versions are listed, going back to v3.0.10.

v3.0.17 LATEST Sep 4, 2026 83 MB TRUSTED v3.0.16 Jun 25, 2026 83 MB TRUSTED v3.0.15 Jun 24, 2026 83 MB TRUSTED v3.0.10 Jan 23, 2026 82.2 MB TRUSTED

All 4 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Sep 4, 2026.
Certificate from Google Play App Signing Google keeps the signing key for the developer, so the certificate carries Google's name.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Sep 4, 2026
Validated against Google Play Sep 4, 2026
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)84:F6:82:F2:BC:C9:1C:0D:EC:86:63:FC:79:9A:03:EC:C0:D4:4B:FC
File MD5a68c34cf1b4f318a300ee361f9d96710
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (30)

sigfy requests 30 permissions, 3 of them sensitive.

Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
Camera Sensitive android.permission.CAMERA
Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Badge read (custom) com.sec.android.provider.badge.permission.READ
Badge write (custom) com.sec.android.provider.badge.permission.WRITE
Badger badge count read (custom) me.everything.badger.permission.BADGE_COUNT_READ
Badger badge count write (custom) me.everything.badger.permission.BADGE_COUNT_WRITE
Bluetooth android.permission.BLUETOOTH
Bluetooth admin android.permission.BLUETOOTH_ADMIN
Control vibration android.permission.VIBRATE
Flashlight android.permission.FLASHLIGHT
Full network access android.permission.INTERNET
Home broadcast badge (custom) com.sonyericsson.home.permission.BROADCAST_BADGE
Home provider insert badge (custom) com.sonymobile.home.permission.PROVIDER_INSERT_BADGE
Internal broadcast protection (app-defined) jp.co.sigfy.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Launcher change badge (custom) com.huawei.android.launcher.permission.CHANGE_BADGE
Launcher read settings (custom) com.htc.launcher.permission.READ_SETTINGS
Launcher read settings (custom) com.huawei.android.launcher.permission.READ_SETTINGS
Launcher read settings (custom) com.oppo.launcher.permission.READ_SETTINGS
Launcher update badge (custom) com.majeur.launcher.permission.UPDATE_BADGE
Launcher update count (custom) com.anddoes.launcher.permission.UPDATE_COUNT
Launcher update shortcut (custom) com.htc.launcher.permission.UPDATE_SHORTCUT
Launcher write settings (custom) com.huawei.android.launcher.permission.WRITE_SETTINGS
Launcher write settings (custom) com.oppo.launcher.permission.WRITE_SETTINGS
Prevent the device from sleeping android.permission.WAKE_LOCK
Read Google service settings com.google.android.providers.gsf.permission.READ_GSERVICES
Read app badge android.permission.READ_APP_BADGE
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Show notifications android.permission.POST_NOTIFICATIONS
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Bluetooth android.hardware.bluetooth
Camera android.hardware.camera
Basic touch input android.hardware.faketouch
Location android.hardware.location

sigfy APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the sigfy APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is a68c34cf1b4f318a300ee361f9d96710.