Linker is a cross-device sync messaging app that synchronizes your mobile phone's text and call history to your account, allowing you to seamlessly continue viewing them on your PC (web). Text messages and calls exchanged on your phone appear exactly as they are on the PC (web) screen when logged in with the same account, enabling you to continue checking them from either your phone or PC.
[Cross-device sync is the key]
• Text Sync — SMS/MMS exchanged on your phone are synchronized to your account and displayed exactly as they appear on the PC (web) conversation screen. Attached files, such as photos, are also synchronized.
• Call Sync — Call history (contact number, time, duration, and distinction between incoming and outgoing calls) on your phone is synchronized to your account and displayed exactly as it appears on the PC (web) call screen. You can retrieve the last 6 months of history when you turn on synchronization.
• Same Account, Two Screens — If you log in to both your phone and PC (web) with the same account, newly exchanged text messages and calls continue seamlessly on both platforms.
[Equipped with basic messaging app features]
• Linker operates as the basic messaging app (ROLE_SMS). Supports receiving, displaying, and sending SMS/MMS messages, attaching photos and videos (MMS), "Reply with Message," and linking with text messaging from other apps.
[Continue sending from PC — When phone and PC are connected]
• Once you connect your phone and PC (web) once, your connected phone will send the text message written on your PC. The phone is always the sender.
• The connection is completed by directly entering the 6-digit code displayed on the PC screen on your phone. The connection will not be established unless the phone approves it.
• The connection can be disconnected from either the phone or the PC; once disconnected, you cannot send messages from the PC.
[Callback Text — Only when enabled]
• When a call ends, the phone will ask if you want to send a pre-registered message, and send it after confirmation. (You can change this in the settings to send immediately without asking.)
• Only the enabled option among the four options—After Answering a Call / After Making a Call / Missed / Unavailable—operates; all are disabled by default. • You can personally set the sending day, time slot, recipient (saved contacts only / all numbers), and numbers to exclude.
• Text message charges are applied based on your mobile carrier's rate plan.
[Useful for these users]
• Those who need to seamlessly check calls and texts while switching between their phone and PC
• Those who want to continue receiving calls or messages from the field on their office PC
[Optional Feature — Call Recording Summary]
• Only when enabled by the user, call recording files generated by the device's operating system are uploaded to your account for PC playback and use in voice recognition and AI summarization.
• The linker does not record directly. It is OFF by default and can be turned off at any time in the settings.
[Privacy and User Controls]
• Personal Data, Personal Account — Your text messages and calls are stored and viewed in your personal account.
• No sharing or sale to third parties.
• Opt-in Principle — Text and call server synchronization is off by default and only works if the user manually enables it in the settings. Data is not transmitted merely by granting permission.
• Turn off at any time — You can turn it off immediately in Settings, and text processing stops immediately if you switch the default messaging app back to another app.
• Permission Pre-notification — Before requesting or automatically granting permissions, the purpose of each permission is explained in Korean first.
[Permission Guide]
Linker uses Text, Call History, and Contacts permissions to provide device-to-device synchronization and default messaging app functions. It also uses the "Display over other apps" permission for confirmation popups before sending callback messages, and the Media (Audio) permission only when Call Recording Summary is enabled. Each permission operates only when the corresponding feature is used. Call and text server synchronization is turned off by default and is transmitted to your account only when enabled by the user. For more details, please refer to the Privacy Policy (linker.so/privacy).
Linker is a device-to-device synchronization messaging app that synchronizes your phone's calls and texts to your account, allowing you to continue viewing them on a PC (web) and continue sending them once connected.
Default messaging app + device synchronization. Sync your phone's texts and calls to your account and continue viewing them on your PC (web).