battles / Customer Support
Formilla vs SupportFast.ai
Formilla ($35/mo/mo, vibe code 8/10) vs SupportFast.ai ($79/mo/mo, vibe code 9/10). Formilla is the easier one to rebuild yourself — here is what you lose either way.
Customer Support
$35/mo/mo
- MVP
- 1 weekend
- Full replacement
- 1-2 months, primarily to match native mobile push apps for support agents.
easier to rebuild
get the build prompt →Customer Support
$79/mo/mo
- MVP
- 10 to 14 days
- Full replacement
- 2 to 3 months
price gap / year
$528/mo
running both / year
$1,368/mo
our call
Start with Formilla — highest vibe code, weakest moat.
Formilla
Formilla provides straightforward real-time chat and rule-based messaging. Using Supabase Realtime, OpenAI/Claude APIs, and a simple React widget, you can build a identical system over a weekend.
you can rebuild
- Real-time visitor live chat widget
- Automated AI chatbot responses using RAG or system prompts
- Real-time visitor page view tracking
- Canned responses and pre-written agent snippets
- Customizable widget theme and targeted trigger popups
what you lose
- Native iOS and Android agent apps out of the box
- Pre-built turnkey integrations for legacy CMS platforms
- Built-in email/SMS broadcast marketing tools
- Zero-maintenance hosted infrastructure for chat state
- Turnkey visitor IP geolocation lookup
SupportFast.ai
SupportFast.ai's core functionality—answering store FAQs via RAG and looking up Shopify order statuses via function calling—is standard to implement. A developer can assemble a working custom equivalent in under two weeks using Next.js, pgvector, and OpenAI.
you can rebuild
- Embeddable web chat widget for storefronts.
- RAG-based policy and FAQ knowledge base answering.
- Automated order status and tracking updates via Shopify API.
- Basic email auto-responder for support inquiries.
- Human handoff routing and admin conversation logs.
what you lose
- Out-of-the-box UI that requires zero code to deploy on Shopify.
- Managed LLM token usage and infrastructure hosting included in a fixed monthly price.
- Pre-built email ingestion and auto-reply pipelines.
real moats
- Pre-tuned prompts specifically optimized for common e-commerce support queries.
- Low-friction setup experience for non-technical small merchants.
Questions people ask
Which is easier to rebuild with AI, Formilla or SupportFast.ai?
Formilla. It scores 8/10 on vibe code with a moat of 0/10, so an AI-assisted MVP takes about 1 weekend and a full replacement about 1-2 months, primarily to match native mobile push apps for support agents..
Which one costs less, Formilla or SupportFast.ai?
Formilla at $35/mo/mo for a typical mid-market store. The gap between the two is about $528/mo a year.
What do I lose if I replace Formilla?
Native iOS and Android agent apps out of the box Pre-built turnkey integrations for legacy CMS platforms Built-in email/SMS broadcast marketing tools
What do I lose if I replace SupportFast.ai?
Out-of-the-box UI that requires zero code to deploy on Shopify. Managed LLM token usage and infrastructure hosting included in a fixed monthly price. Pre-built email ingestion and auto-reply pipelines.
One e-commerce SaaS teardown every week.
Honest verdicts, build prompts and overlooked vertical SaaS opportunities. No tracking pixels, no drip sequence, unsubscribe in one click.
free forever · no third-party tracking · the prompts stay public