Semilimes
IoT messenger platform combining team collaboration with remote device control
About Semilimes
Semilimes is a unified IoT messenger and collaboration platform that bridges the gap between human communication and connected device management. It combines messaging, group chats, channels, and video calling with the ability to monitor and control IoT devices through conversational workflows — all from a single app available on iOS, Android, Web, and Desktop. Designed for both individuals and organizations, Semilimes lets users create reusable templates for messages, forms, and automation buckets, securely share device access with team members, and discover nearby users through location-based networking. Developers can tap into a full API ecosystem to integrate custom hardware or third-party services, and cloud service instances for Node-RED, MQTT, Python, Node.js, and Ollama LLM are available directly through the platform. Semilimes operates on a transparent, usage-based freemium model — users start with 5 GB of free storage and pay only for what they consume beyond that, with degressive pricing tiers that reward growth. This makes it an accessible entry point for hobbyists automating a smart home, and a scalable option for teams managing fleets of connected devices.
Pros & Cons
Pros
- Unique combination of team messaging and IoT device control in one app
- Generous free tier with 5 GB storage at no cost
- Transparent, usage-based pricing with degressive rates
- Broad platform support including desktop (Windows/Linux/macOS)
- Built-in cloud service instances eliminate need for separate infrastructure
- Full API access on the free plan for developers and makers
- Secure, granular device access sharing for teams
Cons
- Usage-based pricing can be hard to predict for high-volume IoT workloads
- Desktop apps are still in beta
- Smaller ecosystem and community compared to mainstream IoT platforms like Home Assistant
- Limited third-party integration library compared to general-purpose collaboration tools
- Pricing page complexity may overwhelm non-technical users
Key Features
Messaging & Channels
One-on-one chats, group messaging, and broadcast channels for team communication in a single unified inbox
IoT Device Control
Monitor and control IoT devices — locks, cameras, sensors, thermostats, lights — through conversational workflows and automation triggers
Video & Voice Calling
Built-in video and voice calling within the same platform used for device management and team messaging
Automation Templates
Create reusable templates for messages, forms, and automation buckets to streamline repetitive IoT and communication workflows
Secure Device Sharing
Grant and revoke team member access to specific connected devices with granular permission controls
Cloud Service Instances
Spin up managed Node-RED, MQTT, Ollama LLM, Python, or Node.js instances directly within the platform for advanced automation pipelines
Developer API
Full REST API and documentation for integrating custom hardware, third-party apps, and building bespoke IoT solutions
NFC & QR Scanning
Trigger actions and link devices or profiles using NFC tags or QR codes from the mobile app
Location-based Discovery
Near By feature lets users discover and connect with other Semilimes users in their physical vicinity
File & Asset Management
Manage shared files, connected apps, and tunnels from a central Assets hub alongside communications
Pricing
- 5 GB data storage
- Messaging, group chats, channels
- IoT device control & automation
- Templates (buckets, messages, forms)
- Video calling
- NFC & QR code scanning
- iOS, Android, Web & Desktop apps
- Developer API access
- 50 GB storage
- All Starter features
- Usage-based API & traffic billing
- Node-RED instances ($4–$14/mo)
- MQTT broker instances ($2–$7/mo)
- Ollama LLM instances ($9–$28/mo)
- Python / Node.js instances ($4–$14/mo)
- Domain & email verification ($5 one-time)