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LINE is a Japanese proprietary application for instant messaging on smartphones and PCs.

Turn Slack threads into a first-class interface for Intercom conversations. Reply in Slack, stay synced in Intercom.

Which is more popular?
Based on our record, LINE seems to be more popular. It has been mentioned 19 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | line.me | backreply.com |
| Pricing | — | |
| Company | Startup from Japan | Startup from Ireland |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of LINE yet.
Your support team lives in Slack, but customer conversations live in Intercom. Backreply bridges the two: customers message through Intercom, your team responds from Slack, and replies sync back instantly. Key features: — Reply from Slack: Respond to conversations in Slack threads with full...
What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Spec Ops: The Line Review
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing LINE and BackReply.
BackReply's answer:
Someone would choose BackReply if their team works primarily in Slack but still uses Intercom for customer messaging. It lets teams reply, assign, route, and collaborate inside Slack while syncing everything back to Intercom automatically, which reduces workflow friction and keeps customer communication consistent and tracked.
BackReply's answer:
BackReply is designed to turn Slack into a reliable reply interface for Intercom, so teams can answer customers directly from Slack threads while Intercom stays the system of record. It focuses on removing context switching, preventing duplicate or lost replies, and enforcing routing and ownership so each conversation has a clear response path.
BackReply's answer:
The main audience is customer support and customer-facing teams using both Slack and Intercom, especially SaaS teams or cross-functional teams where engineers, founders, or product staff sometimes help with support conversations directly inside shared Slack channels.
BackReply's answer:
BackReply was built by a team with years of SaaS integration experience who had previously built products like Rasayel, Interhubz, and Octopods. The team states they created BackReply because they personally experienced the pain of managing support across Slack and Intercom and validated the solution through interviews and real support usage.
Share your experience with using LINE and BackReply. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Line is one of the best telegram alternatives that offer a variety of services, including a digital wallet named Line Pay, a stream of news named LINE Today, video on demand named Line TV, and the distribution of...
The user-friendly interface of Line is highly intuitive, making it a highly popular option amongst people who aren’t that tech-savvy. After downloading, it won’t take anything to use it for your business. This...
While messaging app Line is far more prevalent in its home market of Japan, it also has millions of users in the U.S. One of its interesting standout features is that you can make group video calls with up to 200...
We have no reviews of BackReply yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


The top priority of the interface is to ensure that it doesn't inconvenience our guests. Therefore, I opted for Line, a chat application. This application is widely used and installed on everyone's phone. - Source: dev.to / almost 3 years ago
Diamond Pharmacy would be your best bet. They are extremely active on Line. Go to their website, https://diamondpharmacy-th.com , contact the on Line (if you don't have it, download it at https://line.me/en/ ) and send them a list of the... Source: over 3 years ago
One tidbit: “ロインやってる?” is not a reference to a restaurant. It’s rather an in-universe bland-name product version of LINE, a smartphone messaging app that has the overwhelming majority market share in Japan (and several other Asian... Source: over 3 years ago
Tracking BackReply since Feb 2026.
When comparing LINE and BackReply, you can also consider the following products.

WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
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Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
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Facebook Messenger is a faster way to message.
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Tagged makes it easy to meet and socialize with new people through games, shared interests, friend suggestions, browsing profiles, and much more.
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Get the latest, headlines, breaking, regional news fast.
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