Split Bills Inside LINE — Mr.Splitter
From LINE login to LINE Bot entry, LINE group sharing, and LINE Pay settlement — Mr.Splitter integrates with LINE natively, so you never have to switch apps to settle a tab.
Five LINE integration points
LINE Login
Sign in with your existing LINE account in one tap — no new password to remember. Your LINE display name and photo carry over, so group members recognize each other at a glance.
LINE Bot Expense Entry
Add @mrsplitter as a friend and message "lunch 500" inside LINE to log an expense. Tag the bot in a group chat to log to a group ledger — no app switching required.
LINE Group Invite Sharing
After creating a group, the invite link and QR code can be shared directly into a LINE chat. Friends tap to join — they don't need to install anything either.
LIFF Embedded Experience
Links opened from LINE run inside the LINE app via LIFF (LINE Front-end Framework). The experience feels like part of LINE, not an external browser tab.
LINE Pay-Friendly Settlement
After settlement, each "X owes Y this much" line can deep-link to LINE Pay for one-tap transfer (in markets where LINE Pay is supported — Taiwan, Japan). Mr.Splitter doesn't handle money itself; LINE Pay does the actual transfer.
How LINE integration compares
Compared to international bill-splitting tools, Mr.Splitter's LINE integration is native, not an add-on.
| LINE integration point | Mr.Splitter | Splitwise |
|---|---|---|
| LINE Login | Yes (single sign-on) | No (Email / Facebook / Google / Apple) |
| LINE Bot expense entry | Yes (text "lunch 500" inside LINE) | No |
| LINE group invite | One-tap share to a LINE chat | Generic link (paste into LINE manually) |
| LIFF embedded experience | Yes | No |
| LINE name / avatar auto-import | Yes | No |
| LINE Pay integration | Deep-link to LINE Pay transfer | None |
| Users without LINE | Sign in with Google instead | Other login methods |
※ Splitwise details based on publicly available information. See splitwise.com for the latest features.
Three scenarios where LINE integration pays off
A college LINE group that meets monthly
A group of college friends, still in the same LINE group years after graduation, meets once a month. With Mr.Splitter, the LINE group doubles as the chat space and the bill-splitting space. Whoever paid sends the bot a quick "dinner 500" and it gets logged to that month's shared ledger. End of month: auto-settle, post results in the LINE group, settle via LINE Pay in seconds.
Mixed Taiwan / Japan friend trip to Kyoto
Three Taiwanese friends invite two Japanese friends on a 4-day Kyoto trip. LINE is the one chat tool they all have. Mr.Splitter's LINE Bot speaks both Chinese and Japanese; expenses get logged in JPY, settled in TWD or JPY at the end. The Japanese friends don't need to install a foreign app, and the Taiwanese friends don't need to ask them to.
A 20-person company LINE group with a welfare ledger
A 20-person company department LINE group runs a welfare-fund ledger: Christmas gift exchange budget, year-end party top-ups, communal birthday cakes. All expenses get logged via the LINE Bot in the chat; the welfare coordinator pulls a monthly Excel for accounting. Way smoother than running a separate app or Excel sheet.
FAQ — LINE integration
How do I set up the LINE Bot?+
Can friends without LINE join?+
Can the LINE Bot identify who paid?+
Do LINE Bot entries sync to the web app in real-time?+
How deep is the LINE Pay integration?+
What is LIFF?+
Can I use Mr.Splitter on a computer that doesn't have LINE installed?+
Related pages
Add the LINE friend, start splitting
Add @mrsplitter or sign in with LINE at mrsplitter.com. Three seconds to your first expense.
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