Robofy vs Stammer AI: Which White-Label AI Chatbot Platform Is Right for Your Agency?

When agencies evaluate white-label AI chatbot platforms, Robofy vs Stammer AI is one of the most common comparisons in 2026. While both platforms let you resell AI chatbots under your own brand, their backgrounds couldn't be more different. Robofy is built by a full-time, dedicated technology company entirely focused on creating a single, best-in-class product for all kinds of businesses. In contrast, Stammer AI was created by Ross Fledderjohn and is run by a small, part-time team. Ross splits his time across multiple businesses, such as siteright.co, with much of his focus shifting to newer products.

This stark difference in focus is immediately obvious when comparing the software. Stammer's UI and UX look notably old and its design is outdated, whereas Robofy is built natively on top of the latest Vercel AI SDK, ensuring blazing-fast, modern functionality. Furthermore, this direct comparison breaks down how Stammer's pricing ends up being almost 5x higher than Robofy's, despite offering fewer features in terms of AI agent limits and scalable white-label options.

What is Stammer AI?

Stammer AI is an agency-focused white-label platform for building and reselling AI chatbots and voice agents. It targets digital marketing agencies and AI agency builders who want to offer AI-powered customer service tools under their own brand. Core features include multi-channel deployment across websites, WhatsApp, SMS, Facebook Messenger, and Instagram DMs, as well as sub-account management so agencies can give each client their own portal. Stammer also includes AI Voice Agents, which handle inbound and outbound phone calls using natural language. The platform charges a monthly subscription starting at $197 per month for white-label access, plus additional per-message and per-minute usage fees billed through an agency wallet system.

What is Robofy?

Robofy is a white-label AI chatbot builder designed for agencies and resellers who want to deploy website chatbots for clients quickly, without technical overhead. Robofy's reseller program is built on a 100% revenue retention model, meaning there is no commission taken on what you charge your clients. You keep every dollar of your margin. The platform supports training chatbots on website content and PDFs, offers a chat inbox for conversation management, built-in lead generation tools, and real-time analytics. Robofy charges a flat reseller fee with no per-message billing, making monthly costs predictable regardless of how much your clients use their chatbots. Explore the full Robofy reseller program to see how agencies are building recurring revenue with it.

Robofy vs Stammer AI: Feature Comparison

Both platforms share a solid foundation of reseller-friendly features including RAG-based training, lead capture, and sub-account management. Where Stammer AI pulls ahead is in voice AI and multi-channel reach, which matters for agencies serving clients who need phone-based or social media automation. Robofy pulls ahead on cost predictability and simplicity. With no per-message billing and a genuinely accessible free trial, Robofy is the easier platform to start with and the safer platform to scale on, particularly for agencies whose primary use case is website-based customer support and lead generation.

Robofy vs Stammer AI: Pricing

The hidden cost issue with Stammer AI is massive, resulting in operational pricing that is almost 5x higher than Robofy. An agency with 20 active clients, each generating 500 messages per month using GPT-4o, would pay roughly $100 per month in message fees alone on top of the $197 subscription. At scale, with more clients or higher-volume chatbots, this can easily exceed the subscription cost itself—while you remain capped on agent features and white-label tiers. Agencies using Claude 3.7 Sonnet at $0.03 per message face even steeper variable costs. Robofy's flat fee structure means none of that unpredictability exists. Your cost is fixed, your margin is protected, and growing your client base does not trigger higher platform bills.

Where Stammer AI Falls Short

• Per-message and per-minute billing. Every AI response and every voice call minute is charged on top of the subscription through an agency wallet. This makes cost forecasting difficult and can lead to unexpected charges when client usage spikes.
• No true free trial for white-label features. The 14-day trial is available, but experiencing the full white-label agency dashboard requires signing up at the $197 per month Agency tier. Agencies cannot properly evaluate the reseller experience without financial commitment.
• Reported data loss and bugs. Independent user reviews across platforms have flagged issues including occasional data inconsistencies, agent configuration bugs, and slow resolution times for complex support tickets. These are meaningful risks for agencies managing live client environments.
• Complex wallet and billing system. Pre-loading an agency wallet, managing usage across clients, and reconciling per-message costs adds administrative overhead that simpler platforms do not require.

Why Agencies Choose Robofy

• 100% revenue retention. Robofy takes no commission on what you charge your clients. Your pricing is entirely your own, and the full margin stays with your agency.
• No per-message fees. Robofy's billing is flat and subscription-based. As your clients use their chatbots more, your platform cost does not increase, protecting your margins as you scale.
• Simple and fast deployment with modern architecture. Robofy is built for quick setup using the latest Vercel AI-SDK. Training a chatbot on a client's website or PDF library takes minutes, and compared to Stammer's outdated UX, Robofy's white-label interface is a beautiful, highly modern experience that feels premium to your clients.
• Strong reseller support. Robofy's reseller program is designed with agency workflows in mind, offering the tools and support needed to onboard clients and manage chatbots without constant technical troubleshooting.

Which Platform Should You Choose?

If your agency needs voice AI agents and multi-channel deployment across WhatsApp, SMS, and social media platforms, Stammer AI has capabilities that Robofy currently does not offer. However, for the majority of agencies focused on deploying website chatbots for lead generation and customer support, Robofy is the stronger choice. Its predictable flat pricing, 100% revenue retention, and simple white-label setup make it easier to build a profitable chatbot reseller business without worrying about per-message billing eating into your margins. Start with Robofy's free trial and see how quickly you can onboard your first clients.