Cosy vs TinyFast

Automated Onboarding Sequences

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 names, links, and emojis, and set precise time delays—from immediately to months in the future. This ensures every new joiner feels welcomed personally, even if they join in the middle of the night, saving you hours of manual outreach and follow-up while ensuring no one is ever missed.

Smart Member Introductions

Grow engagement by automatically introducing opted-in community members to each other via DMs on a customizable cadence. Set the frequency (every 1-4 weeks), weekday, and time. Introductions happen in a 3-person DM with the Cosy bot, and members are randomly matched to enhance serendipity while avoiding recent connections. This feature fosters meaningful 1:1 connections on autopilot, turning a group of individuals into a tight-knit network.

Searchable Member Directory

Build a simple, searchable directory of all your community members without anyone leaving Slack. Create custom profile fields (text, single-select, or multi-select) and notify members to fill them out via a bot DM. Members can then search for keywords and filter profiles directly within Slack using the Cosy app or a /member-directory slash command, making it easy for people to find and connect with the right peers.

Content Highlights & Moderation

Instantly surface your community's most valuable conversations with simple slash commands. Use /most-engaged-messages to find top posts in a channel or /most-engaged-messages-all for insights across all public channels. The /unreplied-messages command helps you spot posts needing attention. Cosy also helps maintain a safe environment by allowing you to instantly flag abusive or spam messages for quick moderation action.

100% Local & Private Compression

Your files never leave your Mac. TinyFast processes everything directly on your device, ensuring total privacy by design. This is crucial for handling sensitive documents, proprietary designs, or any work covered by non-disclosure agreements, as there are no uploads to cloud servers and no risk of third-party data storage.

Blazing-Fast Drag & Drop Workflow

Experience compression at the speed of your workflow. Just drag your files or entire folders into the TinyFast app and get optimized output in seconds. The app uses optimized native engines built for macOS to shrink large files quickly, eliminating the long wait times associated with uploading and downloading from online tools.

Universal File Format Support

TinyFast supports a wide range of common file types used by creators and professionals. This includes images (PNG, JPG, WEBP, SVG, GIF), videos (MP4, MOV), documents (PDF), audio (MP3), and even code files (JS, CSS, JSON). This versatility means you can consolidate your compression tasks into one simple, always-available Mac app.

Batch Processing & Resolution Control

Boost your productivity by compressing multiple files at once. Drop an entire folder of images or videos, and TinyFast will process them all in a single batch. Additionally, for images and videos, you have the option to automatically resize the resolution during compression, giving you precise control over the final output size and quality.

Professional Networks & Alumni Groups

For professional networks or alumni associations on Slack, Cosy automates the initial welcome and facilitates ongoing peer-to-peer connections. The automated introductions and searchable member directory help members find mentors, collaborators, or job opportunities within the community, transforming a simple contact list into an active, supportive professional ecosystem that adds continuous value.

Customer Success & Support Communities

Enhance your customer community by ensuring every new user is onboarded smoothly with personalized DMs that guide them to resources. The content highlights feature allows community managers to quickly identify and amplify helpful solutions or unanswered questions, improving overall customer experience and reducing support ticket volume by fostering peer-led help.

Founder & Startup Communities

Founder communities thrive on serendipitous connections and shared knowledge. Cosy's automated introductions create valuable collisions between founders at similar stages, while the ability to surface the most engaged posts helps curate top insights on fundraising, product development, and growth, ensuring the best content doesn't get lost in busy channels.

Internal Company Engagement

Use Cosy within internal company Slack workspaces to boost cross-departmental collaboration and engagement for remote or hybrid teams. Automate introductions between new hires and tenured employees, create a searchable internal skills directory, and highlight impactful team announcements or wins to strengthen company culture and connectivity.

Developers Preparing Assets for Deployment

Developers can use TinyFast to quickly optimize application assets like icons, screenshots, and UI graphics directly on their Mac before bundling or deployment. This ensures faster app load times and smaller download sizes while keeping proprietary code and assets completely secure and local throughout the process.

Designers Sharing Portfolios or Client Work

Graphic and UX designers often need to send high-quality proofs or portfolio pieces via email or messaging apps with file size limits. TinyFast allows them to compress images and videos locally without sacrificing critical detail, enabling fast, professional sharing while protecting unreleased client work.

Content Creators Managing Media Libraries

Video editors, bloggers, and social media managers dealing with large libraries of photos and videos can use TinyFast to free up significant storage space on their Mac. Compressing footage for edits or archiving projects becomes a quick, drag-and-drop task that doesn't require a slow internet connection or compromise original files.

Professionals Working Under Confidentiality

Lawyers, consultants, and engineers working with sensitive documents, schematics, or confidential reports can safely reduce file sizes for email or secure transfer. Since TinyFast operates entirely offline, there is zero risk of exposing private information to online compression services, ensuring compliance with strict privacy protocols.

Cosy offers a straightforward pricing model to suit different community sizes. A generous Free Plan is available for communities with up to 250 members, providing access to all core features. For larger communities requiring unlimited members, a paid plan is available. You can start with a full-featured 30-day free trial for the unlimited plan to test everything Cosy offers before making a decision. All plans are billed per workspace, and you can install the app directly from the Slack App Directory to begin.

TinyFast offers flexible pricing to suit different user needs. You can start with the Free Forever plan, which includes compression of up to 5 files per day. For unlimited use, choose the Monthly Subscription at €2.99/month (includes a 3-day free trial) for ongoing access and updates. For the best long-term value, the Lifetime Plan is a one-time payment of €17.99, granting you unlimited local compressions, all features, lifetime updates, and support for future development.

Cosy is a powerful, Slack-native application designed to transform your static Slack workspace into a vibrant, self-sustaining community. It automates the manual, time-consuming tasks that community managers face daily, freeing up hours every week while significantly boosting member engagement and connection. Built specifically for Slack, Cosy operates seamlessly within the platform your community already uses, eliminating the need for external tools or complicated workflows. It's the perfect solution for community leaders, founders, and managers of professional networks, alumni groups, customer communities, or any Slack workspace focused on fostering meaningful interactions. The core value proposition is simple: automate onboarding, facilitate connections, surface valuable content, and maintain a safe environment—all from within Slack. With a generous free tier for up to 250 members and an intuitive setup, Cosy makes advanced community management accessible and efficient, helping you cultivate a cosy, engaged, and thriving digital space without ever leaving the app your members love.

TinyFast is the ultimate, privacy-first file compression app built exclusively for macOS. It's designed for developers, designers, and creators who need to shrink files instantly and securely, right on their Mac. Forget slow, unreliable online tools that require uploading sensitive assets to unknown servers. With TinyFast, your entire workflow stays local and private. Simply drag and drop your files—including PNG, JPEG, MP4, MOV, PDF, SVG, WebP, MP3, or GIF—into the app and get optimized versions in seconds. Born from a developer's need to handle confidential files safely, TinyFast ensures your assets never leave your machine, making it perfect for anyone working under NDAs or with proprietary content. Engineered for speed with native compression engines, it handles large files without the lag of internet transfers. It's more than a compressor; it's a seamless extension of your creative suite that respects your privacy and turbocharges your productivity by keeping everything fast, simple, and on your device.

How does Cosy handle data privacy and security?

Cosy is a native Slack app, which means it operates within Slack's robust security and compliance framework. It only accesses the data and permissions you explicitly grant during installation. All data is processed securely, and you maintain full control over your community's information. You can review the specific scopes and permissions before installing the app.

Can I customize the messages sent by Cosy?

Yes, absolutely. For both onboarding sequences and member introductions, you have full control over the message content. You can personalize messages using merge tags (like the member's first name), include links and emojis, and set specific time delays for when messages are sent. A template is provided to make setup easy, but you can edit it to match your community's voice perfectly.

What happens if a member doesn't want to be introduced to others?

Member participation in automated introductions is entirely opt-in. Community members can choose not to participate. The system only matches members who have opted in, and it intelligently avoids matching people who have been recently introduced to ensure variety and comfort. Respect for member preferences is a core part of the Cosy experience.

Is there a limit to how many members can use the free tier?

Cosy offers a generous free plan that supports communities with up to 250 members. This includes access to core features like automated onboarding, member introductions, the directory, and content highlights. For communities larger than 250 members, you can start a 30-day free trial of the unlimited plan to explore all features before committing.

Is TinyFast really free to use?

Yes, TinyFast offers a free forever plan that allows you to compress up to 5 files per day with access to all core features. This is perfect for testing the app or for users with light compression needs. For unlimited use, you can upgrade to a monthly subscription or a one-time lifetime purchase.

What happens to my original files after compression?

TinyFast is non-destructive. The app creates a new, optimized version of your file. Your original, full-quality file remains untouched and saved in its original location on your Mac. You are always in complete control of your source assets.

How does TinyFast compare to online compression tools?

Unlike online tools, TinyFast works 100% locally on your Mac. This means your files are never uploaded to unknown servers, your privacy is guaranteed, and compression is instant—no waiting for uploads, processing queues, or downloads. It's faster, more reliable, and completely secure.

Can I compress an entire folder of files at once?

Absolutely. TinyFast supports batch processing. You can simply drag and drop an entire folder containing supported file types into the app, and it will automatically compress all the compatible files within it, saving you considerable time and effort compared to processing files one by one.

Cosy is a Slack-native automation tool in the productivity and management category. It helps community leaders save time by automating member onboarding, introductions, and engagement directly within their Slack workspace. Users often explore alternatives for various reasons. They might need a different pricing model, require features beyond Slack automation, or seek a platform-agnostic tool that works across multiple communication apps like Discord or Microsoft Teams. When evaluating alternatives, consider your core needs. Look for strong automation capabilities, seamless integration with your primary platform, and tools that genuinely foster member connections. The right solution should reduce manual work while making your community feel more engaged and personal.

TinyFast is a privacy-first, Mac-exclusive app that instantly compresses images, videos, and documents locally on your device. It belongs to the category of desktop utility and productivity tools, designed for creators and professionals who prioritize security and a streamlined workflow. Users often explore alternatives for various reasons. Some may need a cross-platform solution for Windows or web use, while others might seek different pricing models or more advanced, format-specific tuning options. The need for a tool that integrates with specific cloud services or offers different feature balances is also common. When evaluating other options, key considerations include the compression engine's privacy policy (local vs. cloud), supported file formats, processing speed, and overall ease of use. The ideal tool should fit seamlessly into your existing creative or development process without compromising on your core requirements.