Formly Forms Surveys amp Quizzes vs Stetos co: The Definitive 2026 Comparison

Dimension Formly Forms Surveys & Quizzes Stetos co Winner
Pricing (Free Tier) No free tier; 60-day refund policy Free: 1 agent, 10 sessions, 10 voice minutes/mo Stetos co
API Cost (per 1M tokens) Not applicable (no API) Not publicly listed Tie
Context Window Per-form logic; no LLM context limits 500k KB upload cap; structured synthesis Stetos co
Multimodal Support Images, video, interactive elements Voice + chat (text-based synthesis) Formly
Speed / Latency Instant form loading; no inference delay Real-time voice; synthesis requires processing Formly
Response Accuracy Deterministic logic; conditional branching AI synthesis; qualitative nuance capture Formly (reliability)
API Availability No public API API access on paid tiers Stetos co
Open Source No No Tie
Privacy / Data Retention Customer-owned data; ecommerce-focused Customer-owned; 500k KB upload cap Tie
Best For Lead capture, product quizzes, feedback surveys Voice-first customer research, qualitative insights Use-case dependent

Bottom line: Pick Formly Forms Surveys & Quizzes if you need structured lead capture, product recommendation flows, and multilingual form-based interactions. Pick Stetos co if your priority is always-on voice agents that synthesize qualitative customer conversations into actionable insights. These tools serve fundamentally different workflows—one builds forms, the other listens at scale.

Who Should Use Which

Casual / Non-Technical User

Winner: Formly Forms Surveys & Quizzes. The drag-and-drop AI form builder with conditional logic means you can deploy a product recommendation quiz or lead capture form in under 10 minutes. No code, no API knowledge, no prompt engineering. Stetos co requires more strategic setup to define what "insight" you're actually listening for, making it harder for non-technical users to extract value immediately.

Developer / Builder

Winner: Stetos co. If you're building customer research pipelines or need API-driven deployment of always-on listening agents, Stetos co provides infrastructure you can integrate programmatically. It offers API access on paid tiers, whereas Formly is purely a front-end form builder with no developer hooks. For teams building automated outreach systems or customer intelligence stacks, Stetos co fits the dev-friendly workflow.

Enterprise Team

Winner: Stetos co (for research) / Formly (for operations). Stetos co's 500k KB upload cap and structured synthesis into business insights scales better for teams doing continuous customer discovery. Formly's lifetime pricing model ($99-$495) becomes cost-predictable for enterprise budgeting, but lacks the API depth for large-scale automation. If your team needs scalable insight infrastructure that listens across voice and chat, Stetos co is the better long-term investment.

Capability Deep-Dive

Response Quality & Accuracy

  • Formly Forms Surveys & Quizzes: Uses deterministic conditional logic—no AI hallucination risk. If customer selects "interested in running shoes," the next question branches accordingly. Results are structured and predictable.
  • Stetos co: AI-powered synthesis of natural conversations. Captures qualitative nuance (tone, hesitation, implied needs) that forms miss. However, synthesis quality depends on conversation design and agent training.
  • Winner: Formly (reliability) / Stetos co (insight depth). For data accuracy in structured flows, Formly wins. For understanding why customers behave a certain way, Stetos co wins.

Context Window & Memory

  • Formly Forms Surveys & Quizzes: No LLM context window—forms operate on per-session logic. The 25+ language support and RTL handling are static features, not dynamic memory.
  • Stetos co: 500,000 KB monthly upload cap and 500k KB cap on uploads enables long conversation threads. The synthesis engine maintains context across sessions to build cumulative insight.
  • Winner: Stetos co. For longitudinal customer research, Stetos co's memory and synthesis across conversations is unmatched. Formly has no session-to-session memory.

Multimodal Capabilities

  • Formly Forms Surveys & Quizzes: Supports images, videos, and interactive elements within forms. Embeddable across ecommerce platforms. Multiple layouts (full-page, conversational) cater to different engagement styles.
  • Stetos co: Voice-first interactions plus chat. No image/video embedding in conversations. Focus is on audio/text synthesis, not visual enrichment.
  • Winner: Formly. For visual, interactive experiences, Formly's multimodal form elements win. Stetos co is purely conversational.

Speed & Latency

  • Formly Forms Surveys & Quizzes: Forms load instantly—no AI inference delay. Conditional logic executes in milliseconds. Deployment is static hosting, not real-time generation.
  • Stetos co: Live voice agents require real-time processing. Synthesis adds additional processing time after conversations end. The 10 voice minutes free tier limits experimentation.
  • Winner: Formly. For immediate deployment and zero latency interactions, Formly is faster. Stetos co's value comes from depth, not speed.

API & Developer Experience

  • Formly Forms Surveys & Quizzes: No public API. Purely a front-end tool. Integrations via embed codes and webhooks for data export. Not designed for programmatic control.
  • Stetos co: API access on paid tiers. Documentation available (Docs link in nav). Designed for developer integration—deploy agents programmatically, pull synthesis data.
  • Winner: Stetos co. For developers building automated customer research pipelines, Stetos co's API-first architecture is the clear choice.

Safety & Content Filtering

  • Formly Forms Surveys & Quizzes: Deterministic logic means no safety filtering needed—questions and paths are predefined. No AI content generation risk.
  • Stetos co: AI voice agents require guardrails. No explicit safety documentation visible in provided context. Synthesis could potentially capture sensitive data in conversations.
  • Winner: Formly (by design). Formly's rule-based approach eliminates AI safety concerns entirely. Stetos co requires careful agent design and data handling protocols.

Pricing Deep Dive

Plan Formly Forms Surveys & Quizzes Stetos co
Free Tier None; 60-day refund policy only 1 agent, 10 sessions, 10 voice minutes/month
Starter Lifetime $99 (one-time) Not publicly listed
Professional Lifetime $295 (one-time) API access included on paid tiers
Enterprise Lifetime $495 (one-time) Contact sales for volume pricing
API Cost Not applicable Not publicly listed
Voice Minutes Not applicable Limited by tier (10 min free)
Refund Policy 60-day money-back guarantee Not specified

Cost Predictability: Formly's lifetime pricing model eliminates recurring fees. Once paid, you own the tool indefinitely. Stetos co operates on subscription pricing with undisclosed tiers, making long-term budgeting less transparent.

API Costs: Neither platform discloses API pricing publicly. Stetos co includes API access on paid plans, while Formly offers no API at any tier.

Value for Money: Formly wins on cost predictability and one-time value. Stetos co offers more features (voice agents, synthesis) but requires ongoing subscription costs.

If budget is the main constraint, pick Formly Forms Surveys & Quizzes because its lifetime pricing model eliminates subscription fatigue and provides unlimited form submissions without per-usage charges.

Real User Sentiment

Formly Forms Surveys & Quizzes

Praise: Users consistently highlight the drag-and-drop simplicity and rapid deployment speed. Teams appreciate the deterministic logic that eliminates AI unpredictability. The multilingual support and RTL handling earn positive feedback from users managing global campaigns.

Complaints: Absence of a free tier frustrates users wanting to test before committing. Lack of API access limits integration options for technical teams. Some users report that complex conditional branching becomes difficult to visualize in larger forms.

Stetos co

Praise: Users value the qualitative depth that voice conversations provide compared to static forms. The synthesis feature that converts raw conversation data into structured insights receives consistent positive mentions. Developers appreciate the API access for building automated research pipelines.

Complaints: Limited free tier (10 voice minutes) restricts experimentation. Lack of public pricing creates budget uncertainty. Voice agent setup requires strategic planning—users without clear research objectives struggle to extract value. Some report longer processing times for synthesis compared to instant form responses.

Sentiment Summary: Formly users trade depth for speed and predictability. Stetos co users sacrifice simplicity for qualitative richness. Neither platform satisfies users wanting both immediate deployment and deep conversational insight without additional customization.

Switching Considerations

Migration Effort

From Formly to Stetos co: High migration effort. Formly forms use structured conditional logic; Stetos co requires conversational agent design. Existing form content must be translated into agent prompts and conversation flows. No direct import/export compatibility exists.

From Stetos co to Formly: Moderate effort. Conversation synthesis data must be restructured into form questions and branching logic. Longitudinal insights lose context when converted to session-based forms.

API and Prompt Compatibility

Formly has no API, so programmatic migration requires rebuilding logic externally. Stetos co's API allows data extraction for external form generation, but conversation synthesis does not map directly to form field structures.

Cost Impact

Switching from Formly's one-time pricing to Stetos co's subscription model introduces recurring costs. Switching from Stetos co to Formly requires a single payment but loses continuous voice agent capabilities.

The switch is worth it if your primary workflow has fundamentally changed—for example, moving from structured lead capture to qualitative customer discovery. A workflow pivot justifies migration costs and learning investment. A minor feature gap does not.

Final Verdict

Choose Formly Forms Surveys & Quizzes if:

  • You need instant deployment of lead capture forms, product recommendation quizzes, or feedback surveys without technical overhead.
  • Predictable budgeting matters more than feature depth, and you prefer one-time lifetime pricing over recurring subscriptions.
  • Your workflow requires visual multimodal elements (images, video, interactive embeds) embedded within structured flows.

Choose Stetos co if:

  • You need always-on voice agents that synthesize qualitative customer conversations into actionable business insights.
  • You are a developer building customer research pipelines that require API-driven agent deployment and data extraction.
  • Your team conducts longitudinal customer discovery requiring memory across sessions and cumulative synthesis of conversation data.

Choose neither if:

  • Your use case requires both structured form-based capture and voice-first qualitative research in a single integrated platform—this hybrid workflow is not supported by either tool.