CalcForge records 31,360 monthly visits with -4.8% month-over-month growth and Free, Paid pricing. Listen Labs records 1,254,632 monthly visits with +22.1% growth and Contact for Pricing pricing.
Open-source engineering calculators for civil and structural design
AI-moderated customer interviews that turn conversations into decisions
| Dimension / Metric | | |
|---|---|---|
| Official Domain | calcforge.com | listenlabs.ai |
| Pricing Model | Free, Paid | Contact for Pricing |
| Monthly Visits | 31.36K (31,360) | 1.25M (1,254,632) |
| MoM Traffic Delta | -1.56K (-4.8%) | +226.77K (+22.1%) |
| Primary Market & Share | 🇮🇳 India (16.1%) | 🇺🇸 United States (70.9%) |
| Direct Visits / mo | 12.46K | 620.75K |
| User Rating | 4.3 | 4.5 |
| Supported Platforms | Website | Website |
Open-source engineering calculators for civil and structural design
Structural, geotechnical, tunnelling and contractor tools available free and open source on GitHub.
Searchable construction datasets covering high-rise buildings, bridges, tunnels, dams and housing.
Registered users get calculation workings, bending/shear/deflection diagrams and PDF export.
Four project-based pathways in Python, AI for construction, AI governance and building AI agents.
AI-moderated customer interviews that turn conversations into decisions
Describe your objective and the platform drafts objectives, likely questions and probing context, or you can upload your own interview guide.
Studies are filled from a qualified global network covering many markets and languages, with targeting to match your audience.
Responses are turned into ranked preferences, insight quotes and theme summaries, so readouts are ready without manual coding.
Beyond words, the platform captures hesitation, emotional tone and gaps between what people say and what they do.
Focuses on enterprise-grade AI-moderated qualitative research and simulated studies, rivaling Listen Labs' interview workflows.
Focuses on enterprise-grade AI-moderated qualitative research and simulated studies, rivaling Listen Labs' interview workflows.
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
Enterprise consumer research platform specializing in video surveys and AI-driven thematic analysis reports.
Enterprise consumer research platform specializing in video surveys and AI-driven thematic analysis reports.
Free / Open-sourceFree practical deep learning courses, research and open-source libraries
SpecialistExcels at organizing and synthesizing unstructured customer feedback into searchable insights, though it lacks live AI interview moderation.
SpecialistExcels at organizing and synthesizing unstructured customer feedback into searchable insights, though it lacks live AI interview moderation.
Free / Open-sourceOpen-source database of AI models, prices and capabilities
Free / Open-sourceOpen-source database of AI models, prices and capabilities
Free / Open-sourceFree open course for prompt engineering and AI security
Free / Open-sourceFree open course for prompt engineering and AI security
Expert-led, AI-native primary research for private equity, healthcare and life sciences — consulting-grade studies delivered in about two weeks.
AI-led customer interviews and research insights at scale
AI-led customer interviews and research insights at scale
SpecialistIndependently scored open-source alternatives to paid SaaS
SpecialistIndependently scored open-source alternatives to paid SaaS
Combines structured surveys with AI-moderated voice and video interviews, offering a similar conversational research approach.
SpecialistUnifies and analyzes multichannel customer feedback into actionable insights, but lacks live interactive interview moderation.
SpecialistUnifies and analyzes multichannel customer feedback into actionable insights, but lacks live interactive interview moderation.
