Mail Support

If you have any other questions, feel free to contact us.


Zip file is a collection of application recording environment logs.
Please send us an email without deleting this file.


App Opens iOS Mail App.


App Opens OS Share View. Select Mail-App that you use.

About Beta iOS16.4

please refrain from updating to iOS16.4.
Please Check HERE

About Meet Feature

Please Check HERE

Password Enter Problem in iOS16 or later

Go to iPhone Settings -> Passwords and turn off “Automatic password entry” and enter your password.
After setting the password, please restore the setting.

List of Frequently Asked Questions

About SilentLog

SilentLog’s aim is intended to create a Timeline by deviding your day into Stay, Walk, Transport and leave lifelogs without having to do any special operation.

Devices for SilentLog

SilentLog run at iPhone after iPhone5s.
SilentLog do NOT run at iPad.
SilentLog also run at Android devices.

About SilentLog Account

If you create SilentLog Account, your data will be backup at server.

Can not create SilentLog Account

How to delete SilentLog Account

If you delete SilentLog Account, you can NOT restore information about that account.

Please access below URL and enter neccessary information.
Delete Account URL

About AppleWatch(SilentLog)

SilentLog of AppleWatch …
do NOT sync data between iPhone and AppleWatch

Can not display photos(SilentLog)

Please confirm abount authorization at iPhone setting.
iPhone’s Setting app -> Privacy -> Photos -> SilentLog will be
「Read and Write」

About SilentLog Plus

SilentLog Plus retrieves, displays and synchronizes data that backed up from SilentLog(iPhone app).
SilentLog Plus is exclusively for users who have purchased a premium ticket and registering an account.

Devices for SilentLog Plus

SilentLog Plus run at iPad on iOS11 or later.
SilentLog Plus do NOT run at iPhone.

Invalid Location

Since the release of iOS13.4, there is a problem that abnormal location information (around Africa) is acquired.
As of April 28, the occurrence conditions and the solution method are not known.

Please try the following measures.
Re-start device
ON-OFF Location Service of Device
Re-install the app

Since version 4.4.2, we have fixed it so that abnormal location information is not saved.