Kuga suits agencies delivering Website Chat, WhatsApp, Instagram and AI Forms with a plan for each client. Stammer AI is worth considering when phone agents, usage resale or your own model API keys are part of the service. Both support white-label client delivery; compare the full workflow and cost.
Written by Kuga using our published product information and Stammer’s public product and pricing pages, checked on 17 October 2026. This is a vendor comparison, not an independent benchmark or a hands-on test of Stammer. Confirm plan inclusions and usage terms before buying.
| What to compare | Kuga | Stammer AI |
|---|---|---|
| Client management | Separate workspaces with client knowledge, workflows, conversations and subscriptions. | Agency dashboard with client sub-accounts and branded client dashboards. |
| Channels | Website Chat on paid plans; WhatsApp, Instagram and AI Forms on Pro and Advanced. | Website chat, social messaging and AI phone agents. |
| White-label experience | White-label widget on every paid plan. Pro and Advanced add the branded Client Portal. | Pro White Label includes your domain, logo and colours. Standard excludes white labelling. |
| Starting subscription | Essential: £19 / US$25 per agent per month, including 1,000 AI replies. | Pro White Label: US$99 per month at the published starting configuration, with five chat and five voice agents. |
| Client portal and reporting | Pro: two portal seats and monthly AI Insights. Advanced: unlimited portal seats. | Client dashboards and analytics; check the reporting and access required by your service. |
| Human replies | Advanced includes two Human Handover operators across Website Chat, WhatsApp and Instagram. | Live chat and human handoff are listed in its plans. |
| Phone calls | Kuga’s published plans cover text channels and forms; they do not include an AI phone agent. | Inbound and outbound AI voice agents. |
| Usage and billing | A subscription for each live agent, with a reply allowance. Your agency sets its own client fees. | Agency and client wallets support usage billing and resale; model and call costs vary. |
Kuga’s monthly prices are per live agent: Essential is £19 / US$25 with 1,000 replies, Pro is £39 / US$49 with 5,000 replies, and Advanced is £79 / US$109 with 10,000 replies. Reply allowances belong to each agent. Pro and Advanced include social channels, AI Forms, the Client Portal and AI Insights; Human Handover requires Advanced.
Stammer’s pricing page lists Standard at US$49 per month without white labelling, and Pro White Label from US$99 per month. Account for agent add-ons and model or call usage. These are different billing units and feature bundles: compare the same client count, channels and expected usage, in the same currency, before estimating your margin.
Use the same approved client website and questions in both products. Check one factual answer, a question the source cannot answer, a qualified enquiry and a booking path. Inspect the saved conversation and the request that reaches the client team.
Then test a second client, a source update and a client login. Record which branded surfaces you checked, the required plan, and any separate integration work. If phone calls are essential, include a real inbound and outbound test in your Stammer evaluation.
Yes, for agencies delivering white-label Website Chat and supported social channels. Kuga uses a separate workspace and subscription for each live client agent. Choose on the required workflow, usage and client access rather than the entry price alone.
Kuga’s published plans cover Website Chat, WhatsApp, Instagram and AI Forms. They do not include AI phone calls.
Preview includes 50 lifetime AI replies for building and testing. Essential, Pro and Advanced each offer a 14-day free trial. A card is required, with one trial per client; monthly billing starts afterwards unless cancelled.
Keep the infrastructure.
White-label AI for agencies and independent operators. One workspace per client, under your brand.