| Core Identity |
| Developer | Rocket.Chat Technologies Corp. | Microsoft Corporation | Vector Creations Limited | Signal Messenger, LLC | Mattermost, Inc. | Session Foundation | Discord Inc. | Slack Technologies, Inc. | Threema GmbH |
| Category | Productivity | Business | Business | Social Networking | Business | Communication | Social Networking | Business | Social Networking |
| Platform | Android, iOS | iOS, Android | Android, iOS | iOS | iOS, Android | Android, iOS | iOS, Android | Android, iOS | iOS, Android |
| Store Metrics |
| Rating | 0.0 / 5 | 4.8 / 5 | 3.3 / 5 | 4.7 / 5 | 4.8 / 5 | 4.2 / 5 | 4.7 / 5 | 2.8 / 5 | 5.0 / 5 |
| Ratings Count | 0 | 3,356,480 | 574 | 1,031,845 | 5,455 | 3,448 | 3,418,501 | 494 | 2 |
| Price | Free | Free | Free | Free | Free | Free | Free | Free | Free |
| Release Date | Mar 9, 2016 | Nov 2, 2016 | May 5, 2016 | Jul 29, 2014 | Jul 10, 2017 | Feb 6, 2020 | May 21, 2015 | May 3, 2021 | Dec 20, 2021 |
| Last Updated | Mar 13, 2026 | May 7, 2026 | Apr 2, 2026 | Apr 29, 2026 | Apr 16, 2026 | Apr 9, 2026 | Apr 27, 2026 | Apr 13, 2026 | Apr 9, 2026 |
| Sentiment & Reviews |
| Sentiment | terrible | - | - | positive | mixed | - | negative | negative | - |
| Score | 20/100 | - | - | 75/100 | 42/100 | - | 35/100 | 25/100 | - |
| Praises | - The core chat functionality provides a functional communication alternative to more expensive industry standard messaging platforms
| - | - | - Privacy-focused messaging architecture provides a secure alternative to mainstream platforms for daily communication
| - Self-Hosting & Open Source
| - | - Community-driven social interaction provides a reliable space for connecting with friends and hobbyists
| | - |
| Complaints | - Frequent application crashes on launch prevent users from accessing critical work communication channels on desktop
| - | - | - Technical instability during device linking prevents users from accessing accounts on secondary hardware
| - App Stability and Crashes
| - | - Frequent application crashes and freezing behavior post-update disrupt core communication and voice chat functionality
| - Navigation and Complexity
- Technical Bugs and Stability
| - |
| Requests | - Native support for modern hardware architectures to improve performance and eliminate lag during daily usage
| - | - | - Advanced group management features would allow for better community organization and moderation
| - | - | - Simplified account recovery and login processes to reduce reliance on phone number verification
| - | - |
| Strategic Intel |
| Strengths | - BYOS architecture enables B2B distribution into air-gapped government sectors
- Federated communication protocol allows cross-agency coalition building
- Open-source MIT license lowers entry barrier for large-scale enterprise adoption
| - Deep integration with Microsoft 365 creates high switching costs
- Enterprise-grade security compliance sustains large-scale adoption
- Global infrastructure supports massive user scalability
| - | - Open-source protocol establishes category authority as a privacy-first utility
- Minimalist interface reduces cognitive load during daily use
- Editors' Choice badge across five markets sustains organic install velocity
| - Strong brand reputation in high-security sectors
- Robust self-hosting capabilities
- Clear focus on data sovereignty
| - | - Persistent server-based community structure drives high switching costs
- Real-time presence triggers increase DAU/MAU ratio
| - Industry-leading AI integration (Slack AI)
- Massive third-party integration ecosystem (2,600+ tools)
- Superior external collaboration via Slack Connect
| - |
| Weaknesses | - Frequent desktop launch crashes drive high churn among power users
- Desktop update cadence lags significantly behind web and mobile clients
- 0.7★ Android-iOS rating gap indicates inconsistent cross-platform quality
| - High-volume notification culture drives user fatigue
- Feature bloat increases complexity for non-desk workers
- 60-minute meeting limit on free tier restricts utility
| - | - Device-linking instability creates high-friction onboarding for multi-device users
- 1,000-member group limit lacks automated moderation tools
- No native CarPlay or Siri integration for hands-free use
| - Poor mobile app stability
- Recurring notification bugs
- Sync issues
| - | - Frequent post-update crashes erode daily active habit
- Complex account verification creates high-friction entry barriers
- Premium tier pricing exceeds category median
| - Poor technical stability on iOS Intune variant
- High UI complexity and cognitive load for users
- Critical notification delivery failures
| - |
| Pricing | freemium | freemium | free | free | subscription | free | freemium | freemium | free |
| Momentum | Intense | Active | Intense | Maintenance | - | - | Intense | - | Intense |
| Update Cadence | 5 versions | 5 versions, 2 majors/6mo, ~7d avg | 5 versions | 1 versions | - | - | 5 versions, 1 majors/6mo, ~5d avg | - | 5 versions |
