Why Teams Add Devolens For Software Licensing

You’ll need both payments and licensing that can enforce seats, features, trials, and offline use across customer environments (especially B2B).

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Options: Cloud Zoo / Food4Rhino vs. Devolens

Cloud Zoo & Food4Rhino

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• Cloud Zoo provides Rhino-native licensing that’s great for Rhino-only ecosystems.
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• Works best when your distribution and licensing are Rhino-centric.
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• Offline support is limited without extra setup.
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• The store and payments story is not fully end-to-end out of the box (teams often add their own billing).

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Devolens

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• One licensing system that works across Rhino, Grasshopper, and other CAD/DCC tools.
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• Advanced models: floating/concurrent seats, overdraft, feature flags, node-locked, usage-based.
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• Offline verification and optional on-prem license server for air-gapped clients.
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• Many payment gateways supported - or use your own billing for enterprise.
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Implementation: License Verification

Rhino/Grasshopper plug-ins are commonly written in C# - fully supported by Devolens.

C# example (simplified):

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var licenseKey = "GEBNC-WZZJD-VJIHG-GCMVD";
var RSAPubKey  = "your RSA public key";
var auth       = "access token with Activate permission";

var result = Key.Activate(token: auth, parameters: new ActivateModel {
    Key = licenseKey,
    ProductId = 3349,
    Sign = true,
    MachineCode = Helpers.GetMachineCodePI(v: 2)
});

if (result == null || result.Result == ResultType.Error ||
    !result.LicenseKey.HasValidSignature(RSAPubKey).IsValid())
{
    Console.WriteLine("The license does not work.");
}
else
{
    Console.WriteLine("The license is valid!");
}

Benefits With Devolens

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1. Payments flexibility: pick your processor or internal billing; handle refunds, VAT, invoicing, quotes.
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2. More licensing patterns without building from scratch.
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3. Works offline for government and enterprise buyers.
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4. B2B-ready tooling: audits, seat transfers, usage telemetry (opt-in), SSO-friendly flows.
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Practical approach: publish on Food4Rhino for visibility, then handle licensing + payments with Devolens to support advanced models and enterprise needs.