UnetCloud

From an API and workflow perspective, the experience is identical. You connect to a node using its IP address, use the web shell, run Python or C scripts via UnetSockets, and receive datagram notifications exactly as you would with a physical modem. The difference is that the acoustic channel and the modem software are both running in the cloud rather than on physical hardware in a tank or in the water. The modem software is the same that runs on Subnero modems, since they are fully software-defined.

Yes. Your application code connects to the virtual modem nodes through the VPN, exactly as it would connect to a modem over a local network. Nothing about your application needs to change or move to the cloud.

UnetCloud stores logs, signal recordings, and any files generated by UnetStack that would normally be accessible through the modem web interface. It also stores anything you upload through the web UI or API. UnetCloud does not collect telemetry and does not share data with third parties. During the beta, we may review log files to understand issues you encounter, solely for the purpose of improving the product. This data will not be shared with any third party. All stored data is deleted when your instance is torn down, which occurs within 3 months of the end of your subscription or the end of the beta period, whichever applies.

All access is through a VPN, and all traffic within the VPN is encrypted. All data stored in the cloud is encrypted at rest. If your security requirements require it, you can generate your own public/private key pair and provide us with the public key; we configure the instance and supply a connection file.

Yes. Subnero provisions your instance with an example node geometry on a standard tier to get you started, and from there you can use the geometry editor in the VAO web UI to adjust node positions, depth, spacing, and channel parameters yourself, without waiting on us.

During the beta, UnetCloud supports the existing channel models available in VAO, including Bellhop, Kraken, PekerisModeSolver, etc. Support for plugging in your own channel models, as well as other real-world channel datasets, is coming soon.

During the beta, we are offering two tiers. The standard tier supports up to 4 compute nodes. An expanded tier supporting up to 10 nodes is also planned, though pricing for that tier is not yet finalized. If you anticipate needing more than 10 nodes, for example for large AUV fleet simulations, please get in touch to discuss requirements and roadmap.

UnetCloud runs the same UnetStack version used in current Subnero modems. This means you can develop against the production API without needing to manage version compatibility between your simulation and your physical hardware.

UnetCloud is currently in a closed beta. Access is available to select customers on request, to help us collect feedback before public release. We are targeting a public release before the end of 2026, though a firm date has not been set.

Beta access is provided at no charge. After the beta period, UnetCloud will move to a subscription model. Subscriptions start at a minimum of 3 months, with options for 6-month and annual terms. No other subscription blocks are available at this stage. The standard tier (up to 4 nodes) is priced at USD 350 per month. Pricing for the expanded tier (up to 10 nodes) is not yet finalized. Contact us for details.

Your application code runs entirely on your own systems and never touches UnetCloud infrastructure. The example geometry Subnero sets up to get you started describes the acoustic channel environment, not your application logic or protocol design, and you do not need to share exact geographic coordinates with us to request it. Once your instance is live, you can adjust the geometry yourself through the VAO web UI without sending those details to Subnero at all. Your mesh topology and routing configuration can be loaded by your own startup scripts over the VPN connection.

This is not available as a standard offering today, but it is on the roadmap as an on-premises deployment option we offer server hardware that runs UnetCloud on your own premises. This is particularly relevant for customers with strict data sovereignty requirements, such as defense programs, where sending any simulation traffic outside a controlled environment is not acceptable. Please note that access to the internals of the system may be limited compared to a fully managed setup. Setting this up involves a scoped engagement with Subnero rather than a self-service installation. If this is a firm requirement for your program, contact us to discuss scope and timelines.