Several questions about the MAC address usage on setup:
1. Do you validate permanent MAC or any active interface MAC? 2. Do you support VMs and custom vNIC MACs? 3. What’s the rehost policy? Do you offer a license server or dongle?
Thanks!
Founder Team
ranjith_bevywise
Sep 12, 2025
A: Hello Sean,
Thanks for your message
Please find the answers below
1. Any active interface. 2. VMs we support. Not sure about VNic, need to check. You can share your VNic to support@beywise.com, we can share a short term license to check before your purchase. 3. Since this is a deal, we don't provide option of second mac licence. However we consider if it is a genuine case.
A: Yes. UNS support needs to be implemented in terms of integration with the other application. The Plan 4 support custom integration where you can extend the data via Python interfaces and do custom implementation and decisions based on the topics and data.
We have done SCADA Implementation for customers using Modbus interfaces.
I don’t quite understand the deal here, is this one purchase is per single MQTT Broker/ instance? For example Tier 4, we have single broker with max capacity of 200 connected clients or we can deploy multiple brokers with 200 concurrent clients in total?
Founder Team
ranjith_bevywise
Jun 4, 2025
A: Yes. You got it right.
One purchase is for a single instance only. You cannot deploy it in multiple servers.
Does this MQTT Broker system support ACLs and topic ACLs per user/group supported? Since you mentioned data connectors for sending data to different databases, does the system support transforming data from a specific topic to DB schema? e.g Data Connector A → Routes `projectA/#` to PostgreSQL (table: temperature_logs) Data Connector B → Routes `projectB/#` to MongoDB (collection: gps_coords)
My last question is: I want to use this broker to send messages to nearly 1,000 mobile devices via MQTT. However, it only supports up to 200 concurrent devices, which seems quite limited to me. Does this mean the broker is only suitable for IoT use cases?
CrystalMQ has been tested for 50,000+ Device connectivity and 2 MB/second data rate on a single instance Ubuntu installation. It also supports clustering and the always available options for large installations.
However the listing done on the AppSumo is capped to 200 Device connectivity for supporting smaller and single instance implementations.
Eclipse Mosquitto is an open-source project that is free to use. How does your product compare to it?
Founder Team
ranjith_bevywise
May 22, 2025
A: Mosquitto provides only the core MQTT Broker functionality.
CrystalMQ provides the out of the data connectors for sending data to different databases and big data engine. It also has cutom UI and dashboard for reviewing your incoming and outgoing messages.
Howver these functionalties comes with the 4 codes version.
Q: MAC Address Specifics after purchase.
Great to see this deal on Appsumo!
Several questions about the MAC address usage on setup:
1. Do you validate permanent MAC or any active interface MAC?
2. Do you support VMs and custom vNIC MACs?
3. What’s the rehost policy? Do you offer a license server or dongle?
Thanks!
ranjith_bevywise
Sep 12, 2025A: Hello Sean,
Thanks for your message
Please find the answers below
1. Any active interface.
2. VMs we support. Not sure about VNic, need to check. You can share your VNic to support@beywise.com, we can share a short term license to check before your purchase.
3. Since this is a deal, we don't provide option of second mac licence. However we consider if it is a genuine case.
Hope this...
Share MQTT Broker
Hi Ranjith!
Thank you for your response and timely reply, greatly appreciated!
Very thankful to see this robust and powerful MQTT Broker available on Appsumo.
Thank you Sean for the appreciation.
Q: Integration & Support
Does your platform support or integrate with devices running on Debian OS?
ranjith_bevywise
Sep 12, 2025A: Sorry. As of now we are supporting only Ubuntu and windows
We will try to prioritise Debian support in the future releases.
Apologies for the inconveniences.
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Q: Unified Namespace included?
That and any particular SLA as part of this deal?
ranjith_bevywise
Jun 10, 2025A: Yes. UNS support needs to be implemented in terms of integration with the other application. The Plan 4 support custom integration where you can extend the data via Python interfaces and do custom implementation and decisions based on the topics and data.
We have done SCADA Implementation for customers using Modbus interfaces.
Learn more about the custom interfaces here...
Share MQTT Broker
Q: About the deal
I don’t quite understand the deal here, is this one purchase is per single MQTT Broker/ instance? For example Tier 4, we have single broker with max capacity of 200 connected clients or we can deploy multiple brokers with 200 concurrent clients in total?
ranjith_bevywise
Jun 4, 2025A: Yes. You got it right.
One purchase is for a single instance only. You cannot deploy it in multiple servers.
Share MQTT Broker
Does this MQTT Broker system support ACLs and topic ACLs per user/group supported? Since you mentioned data connectors for sending data to different databases, does the system support transforming data from a specific topic to DB schema?
e.g
Data Connector A → Routes `projectA/#` to PostgreSQL (table: temperature_logs)
Data Connector B → Routes `projectB/#` to MongoDB (collection: gps_coords)
(1/2) ACL for the Clients/Topics are supported and can be configured when you add the mqtt authentication keys.
Data Transformation and Cusotmized data storage is supported using a module - Custom Storage. This needs a some custom python coding to achieve this.
The python hook gives you the clientid, topic and message and you can make decisions on where to write based on any one of these data.
(2/2)
You can refer to the developer guide on how to write the custom hook
https://www.bevywise.com/mqtt-broker/python-mqtt-broker-interface.html#CustomDataStore
Does it also support connections via WS and WSS?
Yes. CrystalMQ supports both Websocket - WS & WSS.
Screenshot from the product dashboad.
https://img1.bevywise.com/images/overview-2.png
Refer Documentation - https://www.bevywise.com/mqtt-broker/help.html#user-interface
My last question is: I want to use this broker to send messages to nearly 1,000 mobile devices via MQTT. However, it only supports up to 200 concurrent devices, which seems quite limited to me. Does this mean the broker is only suitable for IoT use cases?
CrystalMQ has been tested for 50,000+ Device connectivity and 2 MB/second data rate on a single instance Ubuntu installation. It also supports clustering and the always available options for large installations.
However the listing done on the AppSumo is capped to 200 Device connectivity for supporting smaller and single instance implementations.
Please contact support@bevywise.com
Q: Comparing MQTT Broker to Eclipse Mosquitto
Eclipse Mosquitto is an open-source project that is free to use. How does your product compare to it?
ranjith_bevywise
May 22, 2025A: Mosquitto provides only the core MQTT Broker functionality.
CrystalMQ provides the out of the data connectors for sending data to different databases and big data engine. It also has cutom UI and dashboard for reviewing your incoming and outgoing messages.
Howver these functionalties comes with the 4 codes version.
Share MQTT Broker