Check which features are protected and what history survives a phone change.
THE ATN TAKE · EDITORIAL ASSESSMENT
For permitted personal coordination, both offer free core communication. The useful comparison is the exact feature and recovery workflow: LINE publishes Letter Sealing exceptions and transfer limits; WhatsApp distinguishes message encryption from optional encrypted backups. No transport-protection claim guarantees what a recipient will do with a message. [1][7][9][3][5]
LINEMessages and voice calls with contacts. Business-account products have a separate service route. [1][2]
WhatsAppPersonal messaging and calls, with group conversations and phone-based account access. [3][4][5]
Starting access
LINECore messages and voice calls are advertised free. [1]
WhatsAppPersonal messaging is free; mobile data charges may apply. [3]
Optional paid access
LINEPaid items and subscriptions are separate; no universal premium or business price was established. [6][7]
WhatsAppNo paid personal plan is needed for the core service described here. Business-product charges and eligibility are a separate assessment. [3][8]
Message and call privacy
LINELetter Sealing is on by default for supported content. Group calls, meetings, albums and notes are excluded; media/file coverage also depends on version and specifications. [7]
WhatsAppPersonal messages and calls use end-to-end encryption. This statement is not extended to every business or broadcast feature. [5]
History and visibility
LINEAccount transfer needs a backup plan. Across iOS/Android, a backup PIN transfers the last 14 days; older history needs eligible Premium Backup, limited to specified markets. [9]
WhatsAppEncrypted backups to iCloud or Google Drive are an option to turn on; message encryption does not by itself establish backup settings. [5]
Business/content limits
LINECommon terms restrict sexually explicit submissions, sales, advertising and solicitation. Individual service conditions can apply; a personal account is not commercial approval. [6]
WhatsAppWhatsApp for Business restricts buying, selling, promoting or facilitating adult products and services. This is not an adult-sales channel recommendation. [8]
Referral or affiliate status
LINEOfficial help directs business proposals to LINE Partners. No general messenger cash-referral commission, attribution or ATN enrollment was established. [2]
WhatsAppNo general cash referral program was established from the checked personal-service documentation. [3]
Consider it forATN assessment
LINEPermitted conversations with existing contacts who understand feature-specific encryption and account-transfer limits. [1][7][9][6]
WhatsAppEveryday personal coordination with known contacts, after reviewing account and backup settings. [3][5][4]
For non-graphic coordination between consenting adults. Published product and policy descriptions are not an independent security audit, approval for adult commerce or a guarantee against recipients copying messages. Personal messaging, community broadcasts and business products have different rules.
LINE excludes group voice/video calls, meetings, albums and notes from Letter Sealing. WhatsApp’s privacy description is scoped here to personal messages and calls. A sensitive discussion should be assessed at the feature level rather than by attaching one privacy label to an entire app. [7][5]
Check a cross-platform move in advance
LINE documents a 14-day cross-OS transfer with a backup PIN, with older history dependent on eligible Premium Backup. WhatsApp encrypted-backup setup is another separate decision. Verify the current device-transfer procedure before replacing a phone or relying on an old archive. [9][5]
Avoid assuming a sales permission
LINE’s common terms restrict specified commercial solicitation and explicit submissions. WhatsApp for Business has adult-products and services restrictions. Keep this comparison focused on allowed coordination; a free personal account is not approval for a business-sales operation. [6][8]
Research based · No hands-on testing or numeric scores · Direct links, no affiliate tracking. Our editorial standards