Best Line Spy App to Spy on Android Phones and iPhone for Free

Line Spy is a monitoring app that can be installed on your kids’ or employees’ phones to monitor their Line usage. iKeyMonitor is the best Line spy app for tracking Line text messages and voice messages, recording Line calls, capturing screenshots of all Line activities, and more. Besides Line monitoring, iKeyMonitor records SMS, GPS locations, phone calls, website browsing history, and chat messages on WhatsApp, Facebook, WeChat, etc. It also provides a free version to spy on Android Phones and iPhone for free.


Check iKeyMonitor Online Demo
to see how it works

What Can You Do with iKeyMonitor?

iKeyMonitor can be used for parental control and employee monitoring. It allows you to keep your kids safe from sexual predators, as well as prevent cyberbullying by identifying potential threats in advance. It also enables you to detect insider threats and increase productivity by tracking everything that happens on your employees’ phones. With this free Line spy app, you can remotely monitor your kids’ and employees’ phones anytime, anywhere.

Line Parental Controls – Keep Kids Safe Online

With iKeyMonitor Line spy app, parental control is easy. You can set age-appropriate filters and restrictions for your children to prevent them from being exposed to inappropriate content. You can also remotely monitor all of your children’s activities on Line Messenger to identify and address potential cyberbullying or online predatory.

stop cyberbullying


  • Add alert words to detect cyberbullying
  • 65% of teens have been involved in a cyberbullying incident.
detect sexual predators


  • Monitor chat messages on social media
  • 82% of sex crimes involving a minor are initiated on social media.
ensure online safety


  • Block inappropriate websites
  • 75% of children share personal information about themselves and their families online.

Line Employee Monitoring – Increase Employee Productivity

Are you worried that your employees are slacking at work? Now with iKeyMonitor Line spy, you will see where they have been, what they do with the company device and be alerted when they do something inappropriate.

30+ Line Spy Features In iKeyMonitor

As the most professional Line spy app, iKeyMonitor plays an important role in spying on Line Messenger. It tracks both incoming and outgoing Line messages, records Line calls, monitors Line pictures shared, and captures screenshots of all Line activities.

Besides monitoring Line activities, iKeyMonitor keeps track of keystrokes entered, text messages, calls, websites visited, and social chat messages on WhatsApp, Facebook, Instagram, Telegram, and more. Moreover, this Line spy application lets you limit screen time, track GPS, listen to phone surroundings, and block Line and other apps/games to protect your kids from online dangers. Log into your private online Cloud Panel to check the recorded logs remotely.

Line Spy
Spy On LINE Voice and Video Calls Remotely

Spy On LINE Voice and Video Calls Remotely

iKeyMonitor enables you to remotely spy on LINE voice and video calls with ease. This feature allows you to record all incoming and outgoing LINE calls on your kids’ phones in detail, including call content, duration, time, and contact. In addition, this spy app runs in the background, so your kids won’t know they are being monitored.

Monitor Hidden Chats on LINE App

With iKeyMonitor, monitoring hidden chats on the LINE app has never been easier. This spy app allows you to track all hidden LINE chat messages on your kids’ Android phones, even deleted chats. Besides LINE, iKeyMonitor also monitors hidden chats on other popular chat apps like Facebook, WhatsApp, Instagram, Snapchat, and more. All recorded logs will be automatically uploaded to your online cloud panel for you to view anytime, anywhere.

Monitor Hidden Chats on LINE App

How to Spy on Line App for Free

  1. 1. Sign up

    Register a free trial of iKeyMonitor Line spy app.

  2. 2. Log in to the Cloud Panel

    Log in to the Cloud Panel to download iKeyMonitor Line messenger spy to the target phone.

  3. 3. Install iKeyMonitor

    Install iKeyMonitor and activate it with your license key.

  4. 4. Start Spying

    Start spying on Line app for free on the Cloud Panel.

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Line Spy FAQs

General Question

No, iKeyMonitor works fully on non-rooted Android phones.
iKeyMonitor is compatible with any modern Android device (Samsung, Huawei, etc.) and iPhone/iPad. For more info, please check here.
No, you can’t monitor a phone with only a phone number or IMEI or SN. You need physical access to install iKeyMonitor on a device that you are authorized to monitor.

Line Spying

Yes. iKeyMonitor Line spy app allows you to spy on Line by logging keystrokes inputted, monitoring both-side text messages, capturing screenshots, recording voice messages and calls.
iKeyMonitor Line voice/video call recording feature is under development. It will be added soon.

Yes. iKeyMonitor records the Line messages deleted after the installation of the iKeyMonitor App. It cannot log the messages deleted before the installation.

For non-jailbroken iPhone/iPad, it can read the Line messages deleted after an iCloud backup. It cannot read the messages deleted before backing up to iCloud.

400K Users Love iKeyMonitor Line Spy

Spy APP User

iKeyMonitor works ridiculously well in parental monitoring! It enables me to know more about my lovely daughter! If you cannot spend a lot of time with your children, I recommend that parents like me give it a try!

Gogo Santos

Spy APP User

For monitoring employees, iKeyMonitor helps me a lot! Using this app to monitor LINE messages, I can find out the truth if my employees reveal confidential information to others. I think iKeyMonitor is the best employee monitoring app.

John S.

Spy APP User

Last month, I lost my Samsung cell phone, but thanks to iKeyMonitor, I got my Android phone back quickly! This Line spy software can actually track my phone’s GPS location, it’s amazing! Five stars and highly recommended!

Michael Lam

Android user
Spy APP User

The saddest thing when you lose your iPhone is that you’ve lost almost all the important information stored on your phone. But I installed iKeyMonitor iPhone Line spy in advance, it records a lot of data on my phone, such as SMS, call history, articles, Line messages and more. I can recover a lot of data as soon as possible!

Mark Simon

Spy APP User

Since I cannot be with my daughter all the time, I downloaded iKeyMonitor to monitor her Line chat conversations to make sure she’s safe from cyberbullying. With this Line Messenger spy tool, I can view her Line usage and even track her GPS location.


Tech Savvy
Spy APP User

It is a duty for parents to keep children safe when they use their cell phones. iKeyMonitor Android Line spy app enables me to know everything my children do on their phones. In this way, I can easily do a good job with parental control! Thanks a lot!



Why Choose iKeyMonitor Line Spy App

With over a decade of experience, iKeyMonitor has earned its reputation as the best free Line spy app. Featuring 60+ monitoring features, it tracks all your children’s Line activities and automatically uploads logs to your private online Cpanel for you to view remotely. Besides monitoring Line Messenger, iKeyMonitor also helps you monitor other social platforms such as WhatsApp, Facebook, Instagram, Snapchat, WeChat, etc. Additionally, iKeyMonitor offers a free plan that lets you use the basic features at no cost.

  • Remote Line Spy App

    By using iKeyMonitor, you can remotely monitor Line chat messages, audio and video calls, and photos shared. View your Line recorded logs remotely from any browser on any device, anywhere and anytime.
  • Powerful Monitoring Features

    iKeyMonitor Line messenger spy is powerful enough to monitor almost everything done on iPhone or Android phones by logging keystrokes, capturing screenshots and more.
  • 24*7 Tech Support

    iKeyMonitor customer support team provides you with 24/7 tech support through emails, live chat, FAQs, and a user guide to solve your problems as soon as possible!
  • Secure Spy App

    Unlike other Line app trackers that save monitoring data on public servers. iKeyMonitor encrypts all recorded Line logs and saves them privately and securely on your private Cloud Panel to ensure privacy and security.
  • Discreet & Tamper Proof

    iKeyMonitor is protected by a password and a customized access code or URL to avoid unauthorized access. It can be configured as a system admin or converted to a system app to avoid unauthorized uninstallation.
  • Free Line Spy App

    iKeyMonitor offers a free version to spy on Line on Android and iPhone devices for free. It includes almost every feature of the full version and lasts for three days.
  • 1 License for 1 iOS/Android

    One iKeyMonitor Line spy app license supports both iOS and Android phones. It’s another amazing feature that meets different users’ needs.
  • Support Multi-Languages

    With iKeyMonitor Line tracker, you can find the language that you are most familiar with because it offers versions in different languages.
  • 30-Day Money Back

    In the event that iKeyMonitor Line spy app does not work on your device and our technical support cannot resolve the issue, you will be able to get your money back within 30 days.