WFワットチェッカー

ラトックシステムWi-FiワットチェッカーRS-WFWATTCH1専用アプリ。家電の消費電力をスマホでチェック。消費電力、電圧、電流、電気料金等をスマホで表示。

Ratoc Systems, Inc. · com.ratoc.wfwattch

Not rated yet 1K+ downloads v1.1.4 13.7 MB Android 6.0+ PEGI 3 · Everyone

Download APK 13.7 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v1.1.4 (1010401)
Updated: Jan 13, 2026 (9 months ago)
APK size: 13.7 MB
Requires: Android 6.0+ (API 23)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Category: Tools (app)
Listed since: Jan 25, 2021 (at least)
Permissions: 18 (3 sensitive)
Website: ratocsystems.com/products/subpage/wfwattch1.html
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

WFワットチェッカー is an app by Ratoc Systems, Inc. in the Tools category, listed since at least January 2021. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

Since version 1.1.3, the APK grew from 9.3 MB to 13.7 MB and the minimum Android version rose from 4.4 to 6.0. It asks for 18 permissions, 3 of them sensitive: read shared storage, modify shared storage and nearby wifi devices. Compared with version 1.1.3, it adds 2 new permissions: “Modify shared storage” and “Foreground service data sync”.

What's new in v1.1.4

一部のOSバージョンでアプリ画面がステータスバーやナビゲーションバーと重なって表示される問題を修正しました。 Google Play の要件に対応しました。 *2025年8月31日以降、新しいアプリとアプリのアップデートは、Android 15（API 35）以降を対象とする必要があります。既存のアプリも、Android 14（API 34）以上を対象とする必要があります。

Description

From the listing uploaded by “appupdater”.

ラトックシステムのWi-FiワットチェッカーRS-WFWATTCH1専用アプリ。消費電力、電圧、電流、電気料金などをスマホからリアルタイムでチェック。グラフ表示やCSV書き出し、電源ON/OFFも可能。 ■主な機能・　消費電力をリアルタイム表示・　消費電力量を電気料金、CO2排出量に換算表示・　1時間単位、1日、1か月単位で推移をグラフ表示・　測定データのCSV書出し・　スマホからの電源ON/OFF

Version history

2 versions are listed, going back to v1.1.3. Since v1.1.4 it requires Android 6.0+.

v1.1.4 LATEST Jan 13, 2026 13.7 MB TRUSTED v1.1.3 May 20, 2024 9.3 MB TRUSTED

All 2 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Jan 13, 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 other version checked

Store checks and file details

Developer signature verified Jan 13, 2026
Validated against Google Play Jan 13, 2026
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)AB:2A:44:BF:FF:06:26:19:0D:6C:7D:66:7E:C2:13:7A:CC:8A:C7:EE
File MD5520c74896d224756a6752d265378f2fa
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 (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (18)

WFワットチェッカー requests 18 permissions, 3 of them sensitive.

Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Nearby wifi devices Sensitive android.permission.NEARBY_WIFI_DEVICES
Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
Access provider android.permission.ACCESS_PROVIDER
Change network state android.permission.CHANGE_NETWORK_STATE
Change wifi multicast state android.permission.CHANGE_WIFI_MULTICAST_STATE
Change wifi state android.permission.CHANGE_WIFI_STATE
Foreground service data sync android.permission.FOREGROUND_SERVICE_DATA_SYNC
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
Internal broadcast protection (app-defined) com.ratoc.wfwattch.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Run foreground services android.permission.FOREGROUND_SERVICE
Schedule exact alarms android.permission.SCHEDULE_EXACT_ALARM
Show notifications android.permission.POST_NOTIFICATIONS
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Portrait screen android.hardware.screen.portrait
Wi-Fi android.hardware.wifi

WFワットチェッカー APK: questions and answers

Is there a version of WFワットチェッカー for older Android phones?

The current version needs Android 6.0 or later. Version 1.1.3 is the newest listed build that installs on Android 4.4 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 1.1.3 · All versions

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 WFワットチェッカー 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 other version checked. After downloading, check that the file's MD5 is 520c74896d224756a6752d265378f2fa.