LINE vs WhatsApp: Which Messaging App Is Better for You?

Choosing between LINE and WhatsApp depends on how you communicate, which features matter to you, and which app your friends or family already use. Both platforms support messaging, photo sharing, voice messages, and internet-based calls. However, they differ in group calling limits, privacy features, account registration, and additional services.

WhatsApp is a practical option for everyday conversations with people who already use it. LINE may be a better fit for users who enjoy its sticker collections, participate in LINE communities, or need larger group calls.

Let’s compare their main features to help you decide which app suits your needs.

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LINE vs WhatsApp: Main Differences

Feature	LINE	WhatsApp
Best suited for	Users who prefer LINE’s stickers and communities	Everyday communication with existing contacts
Group voice and video calls	Up to 500 participants	Up to 32 participants
Calls to regular phone numbers	LINE Out is discontinued	No standard landline or mobile-number calling service
Message and call privacy	Letter Sealing for supported communications	End-to-end encryption for personal messages and calls
Computer support	Windows and Mac desktop apps	Web and desktop apps
Linked devices	Depends on supported features and account setup	Up to four linked devices in addition to the primary phone
Basic cost	Free core features; optional paid items	Free personal messaging and calls; internet charges may apply

Note: Features and participant limits can change with app updates, device compatibility, and regional availability. Group-call participant limits do not necessarily indicate how many people can appear on the screen simultaneously.

1. Messaging Features and Stickers

Both LINE and WhatsApp make it easy to communicate with individuals and groups. You can send text messages, photos, videos, voice messages, and other supported files. They also provide controls for blocking contacts and managing notifications.

One feature that may attract users to LINE is its collection of expressive stickers. The LINE Sticker Shop offers a variety of designs, including collections that may require payment.

WhatsApp also supports stickers, so both apps provide ways to make conversations more personal. Your preference may depend on the designs available, how easily you can find them, and what your contacts enjoy using.

For everyday messaging, consider how comfortable each app feels during regular use. Try sending a photo, searching for an older message, muting a busy group, and sharing a file. These simple tasks can help you decide which interface works better for you.

2. Voice and Video Calling

Both apps allow users to make calls over Wi-Fi or mobile data. Their performance depends on factors such as internet speed, network stability, device capabilities, and the environment in which you are calling.

A significant difference is the number of participants supported in group calls.

According to the product information used for this comparison, LINE supports group voice and video calls with up to 500 participants, while WhatsApp supports group calls with up to 32 participants. Actual availability may depend on the type of call and the version of the app.

LINE’s higher participant limit can be useful for large communities, online gatherings, or groups that need to bring many members together. WhatsApp may be sufficient for family calls, conversations with friends, and smaller team meetings.

WhatsApp also introduced guest calling in October 2026, allowing invited participants to join through a computer browser without creating a WhatsApp account. The person creating the call link still needs an account, and the host must admit guests. Check the latest official guidance for availability and supported features.

Remember that neither app guarantees perfect call quality. A slow or unstable connection can affect sound and video regardless of which service you choose.

3. Can You Call Regular Phone Numbers?

LINE previously offered a service called LINE Out, which allowed users to call ordinary telephone numbers. However, that service ended on May 31, 2023.

You should not choose LINE expecting to use this discontinued feature.

WhatsApp also does not provide a standard service for dialing ordinary landline and mobile numbers through the traditional telephone network. Its regular calls are designed for communication between app users, with certain guest-call options available.

If you frequently need to call people who do not use messaging apps, check your mobile carrier’s calling plans or a currently supported internet-to-phone service.

4. Privacy and Encryption

Privacy is an important consideration when choosing a messaging app. Although LINE and WhatsApp both provide security features, their encryption coverage is not identical.

WhatsApp privacy

WhatsApp states that personal messages and calls are protected by end-to-end encryption. This means the communication is designed to remain readable or accessible only to the communicating participants, rather than being available in readable form to the service provider.

However, privacy also depends on how you secure your account, linked devices, and backups. You should review these settings rather than relying on encryption alone.

LINE privacy

LINE provides a feature called Letter Sealing, which protects supported chat content and one-to-one voice and video calls with end-to-end encryption.

However, LINE’s published documentation identifies exclusions. These include group voice and video calls, meetings, albums, and notes, which use transport encryption rather than Letter Sealing. Coverage for certain media and files may also depend on the app version and applicable specifications.

This distinction matters if you regularly discuss confidential information in large group calls.

Which is better for privacy?

There is no need to judge either app using a single security label. Instead, consider the specific communication features you use and the protection applied to them.

For better account security on either platform:

• Use a strong screen lock on your phone.
• Keep the app and operating system updated.
• Review linked devices and sign out of devices you no longer use.
• Check backup settings and available backup protections.
• Limit unnecessary contact permissions.
• Be careful about message previews displayed on a locked screen.

These steps can help reduce privacy risks regardless of which messaging service you choose.

5. Account Registration and Adding Contacts

Account setup is another difference between the two services.

WhatsApp uses a phone number to register an account. LINE’s registration process can vary by country.

According to LINE’s account-creation guidance, phone-number verification is used in certain markets, including Japan, South Korea, Taiwan, Thailand, and Hong Kong. In other countries, including India, the available registration process may use options such as signing in with Apple or Google.

The options presented during setup may change, so follow the current instructions displayed in the official app for your country.

Before switching to another messaging platform, consider whether your most important contacts are willing to use it. An app’s additional features are less useful if the people you want to reach are not available there.

You can also keep both apps installed and use each for a different group of friends, family members, or colleagues.

6. Using LINE and WhatsApp on a Computer

Both services offer ways to communicate from a computer, which can be useful when working at a desk or typing longer messages.

LINE provides desktop applications for Windows and Mac. WhatsApp offers web and desktop options, allowing users to access supported conversations from a computer.

WhatsApp’s linked-device system supports up to four additional linked devices alongside the primary phone, subject to the service’s current requirements.

Before installing either app, check its official system requirements. Compatibility can vary by operating system and device.

If computer access is important to you, test the tasks you perform most often. For example, check whether you can send files easily, access your conversations, and join supported calls without unnecessary steps.

7. Social Features and Regional Availability

LINE and WhatsApp offer more than private messaging, but their additional features are not identical.

WhatsApp includes Status updates and Channels, which let users share updates or follow information from organizations and other publishers.

LINE has offered additional social and content services, but their availability and names can vary by market. Older articles may refer to Timeline or VOOM features that have since changed or been discontinued in certain regions.

For this reason, do not assume that every feature shown in an online tutorial is still available in your country.

Check the current app interface and official announcements before choosing a service based on a particular social feature.

8. Battery Usage, Data Consumption, and Call Quality

It is difficult to declare one app the winner for battery life, mobile-data usage, or call quality without testing both under comparable conditions.

Performance depends on several factors, including your phone, network, camera use, background activity, and the duration of your calls. Older comparisons based on different devices or testing methods may not reflect your current experience.

If you want to compare the two apps on your phone, follow these steps:

1. Make a voice or video call of the same duration on each app.
2. Use the same phone and internet connection for both tests.
3. Keep camera use and screen brightness as similar as possible.
4. Check mobile-data consumption in your phone’s settings.
5. Review battery usage over several days of normal use.

Repeat the test if the results seem unusual. A single short session may not represent typical performance.

For most users, the availability of contacts and the usefulness of the features may be more important than a small difference in battery or data consumption.

Which App Should You Choose?

The right choice depends on your communication habits rather than a universal winner.

Choose WhatsApp if:

• Most of your friends, relatives, or colleagues already use it.
• You want a straightforward option for everyday messaging.
• You regularly make personal voice and video calls.
• You prefer using WhatsApp on both your phone and computer.
• Its group-call limit meets your needs.

Choose LINE if:

• Your friends or community already communicate through LINE.
• You enjoy its sticker collections and customization options.
• You need support for larger group voice or video calls.
• You prefer its interface and available regional services.

Should you use both?

Yes. Using both apps can be convenient if different groups prefer different platforms.

For example, you might use WhatsApp for daily family conversations and LINE for a community that already organizes its activities there. You do not have to move every contact to a single service.

Just review notification settings, contact permissions, and storage usage to keep both apps manageable.

Frequently Asked Questions

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Final Verdict

LINE and WhatsApp both provide useful tools for everyday communication, but they serve different preferences and needs.

WhatsApp is a practical choice when your existing contacts already use it and its calling and messaging features are sufficient. LINE stands out for users who prefer its sticker collections, belong to LINE-based communities, or need its larger group-call capacity.

Before making a decision, consider who you communicate with most often, which privacy protections apply to your preferred features, and whether you need access from a computer.

The best messaging app is the one that fits your daily routine, helps you stay connected with the right people, and provides the features you actually use.