Cosy vs Lightsplit

Side-by-side comparison to help you choose the right AI tool.

Cosy automates Slack community onboarding and engagement to save you time.

Last updated: February 28, 2026

Lightsplit tracks shared expenses in LINE and Telegram so everyone knows exactly what they owe.

Last updated: March 26, 2026

Visual Comparison

Cosy

Cosy screenshot

Lightsplit

Lightsplit screenshot

Feature Comparison

Cosy

Automated Onboarding

Create and automate up to 10 distinct welcome DM sequences for new members, sent from you, a team member, or the Cosy bot. Fully customize messages with member names, links, and emojis, and set time delays from immediate to months in the future. This ensures every new member is welcomed personally, even outside business hours, saving hours of manual outreach and follow-up while providing a consistent, warm first impression.

Connect Your Members

Grow engagement by automatically introducing opted-in community members to each other via direct messages. You customize the intro message, cadence (every 1-4 weeks), and timing. Introductions happen in a 3-person DM including both members and the Cosy bot, fostering serendipitous connections. The system randomly pairs members while avoiding recent matches, automating relationship-building to create a more engaged and interconnected network.

Member Directory

Build a simple, searchable directory of all community members without leaving Slack. Create custom profile fields (text, single-select, or multi-choice) and notify members to fill them via a one-click prompt. Members can search by keyword and filter for completed profiles using the Cosy app or a slash command. This tool helps members discover each other easily, fostering a more cohesive and supportive community environment.

Content Highlights

Instantly surface the most valuable conversations in your community with quick slash commands. Identify the top 10 most engaged posts in a specific channel or across all public channels. Alternatively, find messages that have received no replies to ensure no question goes unanswered. This feature helps community managers and members quickly find high-signal content and identify opportunities for engagement.

Lightsplit

AI Bill Splitting

Simply take a photo of any receipt. Lightsplit's AI instantly scans and accurately identifies individual items, their prices, and quantities. It then allows you to assign these items to specific people in your group for a perfectly itemized and fair split, all in seconds. This removes manual data entry and calculation errors completely.

Simplify Debts

Lightsplit doesn't just track who owes what; it intelligently optimizes the settlement process. The system automatically calculates and suggests the minimum number of payments required to clear all balances within the group. This reduces transaction fees and complexity, getting everyone settled faster.

Organize by Group

Create dedicated groups for different circles and activities. Keep your vacation expenses with friends completely separate from your shared household bills with roommates or office coffee fund. This organized group management ensures clarity and prevents financial details from getting mixed up.

Track Balances Easily

Every expense updates the group's balances in real time. An intuitive dashboard provides an immediate, clear overview of all debts and credits. You can see at a glance who is owed money and who needs to pay, ensuring complete transparency and eliminating awkward conversations.

Multiple Currency Support

Perfect for international travel or groups with members using different currencies. Add expenses in any currency, and Lightsplit handles the conversion using up-to-date exchange rates. Everyone can see balances in their preferred currency, making global expense sharing straightforward.

Custom Get Paid Options

Add your preferred payment methods for getting paid back, such as PayPal, bank transfer, or local apps. You control how you receive money without having to share sensitive banking details with everyone in the group each time a settlement is needed.

Use Cases

Cosy

Professional Network Communities

Community leaders running industry groups or professional networks on Slack can use Cosy to automate member onboarding, ensuring every new professional feels welcomed. The automated member introductions foster valuable peer-to-peer networking, while the searchable directory helps members find relevant contacts, mentors, or collaborators, significantly increasing the network's value and activity.

Customer Success & Support Communities

Companies hosting customer communities on Slack can leverage Cosy to automate welcome sequences that guide new users to resources. The content highlights feature surfaces common questions and popular solutions, helping reduce repetitive support queries. The safe environment monitoring helps maintain a professional, helpful space, enhancing customer satisfaction and product adoption.

Internal Company Teams

Internal team leaders can use Cosy to boost camaraderie and cross-departmental collaboration within their company's Slack. Automated introductions break down silos by connecting employees from different teams. The member directory helps staff find colleagues with specific expertise, and highlighting top content ensures important company announcements and wins get the visibility they deserve.

Online Course & Cohort-Based Communities

Educators and course creators managing student cohorts on Slack can automate student onboarding with tailored sequences. The connection feature helps students find accountability partners or study groups, enhancing the learning experience. Content highlights allow facilitators to easily spot trending discussion topics and unanswered student questions, enabling more targeted support.

Lightsplit

Group Travel and Vacations

Ideal for multi-day trips where expenses for hotels, meals, activities, and transport pile up quickly. Lightsplit ensures every shared cost is logged and split accurately as you go, so no one is left with a surprising large bill or complex calculations at the end of the journey.

Shared Household Management

Essential for roommates or families sharing recurring costs like rent, utilities, groceries, and internet bills. Create a household group to track all shared expenses transparently, ensuring everyone pays their fair share for common goods and services without confusion.

Social Dining and Events

Perfect for dinners out, group orders, parties, or any social gathering where the bill needs to be divided. Instead of one person fronting the entire cost and chasing payments, split the bill item-by-item instantly via a chat bot right at the table.

Project and Office Expenses

Useful for work teams, committees, or small offices managing shared budgets for supplies, client meals, or team activities. A dedicated group keeps all project-related expenses organized and accountable, simplifying reimbursement and budget tracking.

Overview

About Cosy

Cosy is a powerful, Slack-native application designed to transform your Slack workspace into a vibrant, self-sustaining community. It automates the manual, time-consuming tasks of community management, freeing leaders to focus on strategy and meaningful engagement. Built specifically for Slack, Cosy integrates seamlessly to handle critical functions like automated member onboarding, fostering connections between members, creating a searchable member directory, highlighting valuable content, and maintaining a safe environment. It is the ideal tool for community managers, founders, and team leaders who run professional networks, customer communities, or internal teams on Slack. The core value proposition is clear: save significant manual effort every week while systematically growing a more connected, active, and valuable community directly within the platform your members already use and love.

About Lightsplit

Lightsplit is an AI-powered expense management tool designed to eliminate the friction of splitting bills among groups. It transforms the tedious process of tracking shared costs—from restaurant meals and groceries to rent and travel expenses—into a simple, automated task. The core value proposition is its seamless integration into existing communication workflows. Users do not need to download a separate app; Lightsplit operates directly within popular messaging platforms like LINE and Telegram, as well as through a web app. This makes adoption effortless for any group. Simply snap a photo of a receipt, and the AI automatically detects items, prices, and assigns them to group members. It provides real-time balance tracking, simplifies debts to minimize transactions, and supports multiple currencies. Designed for travelers, roommates, friends, and families, Lightsplit ensures everyone knows exactly what they owe, promoting transparency and fairness while saving time and preventing spreadsheet drama.

Frequently Asked Questions

Cosy FAQ

How does Cosy handle member introductions?

Cosy introduces opted-in community members to each other on a customizable cadence (every 1, 2, 3, or 4 weeks). The introduction is sent as a 3-person DM including both members and the Cosy bot. You can customize the intro message template, the weekday, and the time (in UTC). The system randomly pairs members while avoiding recent matches to encourage diverse connections.

Can I customize the onboarding messages?

Yes, onboarding messages are fully customizable. You can create up to 10 distinct welcome DM sequences. Messages can include the member's name, links, emojis, and you can set specific time delays for each message—from immediately to minutes, hours, or even months after a member joins. Messages can be sent from you, a team member, or the Cosy bot.

How do members access the Member Directory?

Members can access the directory in two ways: by opening the Cosy app directly within Slack, or by using the /member-directory slash command in any public channel, which provides a quick link. The directory is searchable by keywords and can be filtered to show only profiles that have been filled in, making it easy to find relevant community members.

Is there a free plan available?

Yes, Cosy offers a free plan for communities with up to 250 members. For communities needing to support unlimited members, a 30-day free trial is available. This allows teams to fully test all premium features and automate their community management workflows before committing to a paid subscription.

Lightsplit FAQ

Is Lightsplit free to use?

Yes, Lightsplit is currently free to use. You can access all core features, including AI receipt scanning, group creation, balance tracking, and debt simplification, without any cost through the web app, LINE, or Telegram.

Do I need to download an app to use Lightsplit?

No, you do not need to download a separate app. Lightsplit is designed for maximum convenience and works directly within the platforms you already use: you can access it via any web browser or as a bot inside LINE and Telegram.

Is my financial data safe?

Lightsplit takes data security seriously. The platform uses secure encryption to protect your information. It is designed for expense tracking and does not require access to your bank accounts or sensitive financial login credentials.

Does everyone in the group need to add Lightsplit?

No, only the person creating the group and adding expenses needs to interact with Lightsplit. They can add members simply by their name or chat handle. Other members receive updates and can view balances through shared summaries or within the chat.

Alternatives

Cosy Alternatives

Cosy is a Slack-native productivity tool that automates community management tasks like onboarding and member introductions. It saves community leaders significant time by handling repetitive administrative work directly within Slack. Users often explore alternatives for various reasons. These can include budget constraints, a need for features beyond Slack automation, or a requirement to manage communities on platforms other than Slack. The specific needs of a community's size, stage, and goals are key drivers in this search. When evaluating alternatives, consider the core platform (Slack, Discord, etc.), the depth of automation for key workflows, pricing transparency, and the tool's ability to scale with your community's growth. The right solution should align with your primary goal, whether it's saving time, boosting engagement, or expanding to new platforms.

Lightsplit Alternatives

Lightsplit is a personal finance and productivity app designed to simplify group expenses. It operates within popular messaging platforms like LINE and Telegram, allowing users to split bills by simply snapping a photo of a receipt. Its AI automatically detects items and calculates what each person owes, making it ideal for friends, roommates, and colleagues who share costs. Users often seek alternatives for various reasons. Some may need an app that works on different platforms or integrates with other financial tools. Others might look for different pricing models, more advanced features like debt settling, or a standalone app experience outside of messaging platforms. The specific needs of a group can drive the search for a different solution. When evaluating alternatives, consider your group's primary communication channels and whether you prefer an in-chat tool or a separate app. Look at core functionality like receipt scanning accuracy, split calculation flexibility, and multi-currency support. Also, assess the cost structure and any additional features like payment integration or expense reporting that match your financial habits.

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