Calcupedia vs Elfsight
Elfsight is a popular website widget platform with over 90 widget types, social feeds, reviews, forms, and a calculator builder among them. It's genuinely versatile. The key difference: Elfsight's calculator is a build-your-own tool with a simpler formula engine, while Calcupedia offers 2,400+ pre-built, peer-reviewed calculators covering everything from mortgage amortization to AI API cost.
Feature comparison
| Feature | Calcupedia |  Elfsight |
|---|---|---|
| Starting price | Free (badge required), or from $1/mo per embed | Free (200 views/mo, 1 widget, Elfsight branding); paid from $4-6/mo (Basic, 5,000 views, depending on billing) |
| Pre-built calculator library | ✓2,400+ calculators, and growing | ✗Build-your-own only, no pre-made calculator library |
| Formula complexity | ✓Complex peer-reviewed formulas (mortgage, TDEE, etc.) | ~Simple to moderate, struggles with complex multi-variable formulas per independent review |
| Lead capture | ~From the Creator plan ($9.99/mo) | ✓Yes, form submission with email notifications |
| CRM / email integration | ~HubSpot, Mailchimp, webhooks, Creator plan ($9.99/mo) | ~Email notifications via SMTP; broader integrations via Zapier |
| Analytics | ✓Views, completions, engagement, even on Free | ~View count only, no completion tracking |
| View limits on paid plans | ✓No view limits at any tier | ✗5,000 views/mo on Basic; 50,000 on Pro, widget deactivates if exceeded |
| Widget branding removal | ✓No branding on paid plans | ✗Elfsight logo on free plan; removed from Basic paid plan up |
| Modern niche calculators | ✓36 categories including AI, crypto, creator economy | ✗Build-your-own, no niche library |
| Platform versatility | ~Calculators only (specialized depth) | ✓90+ widget types, reviews, social feeds, forms, countdown, maps |
Who each tool is built for
✓ Calcupedia is ideal for
Site owners who need a specific calculator type from a large verified library, embedded immediately with no formula writing or accuracy checking, plus lead capture, analytics, and CRM integration.
→ Elfsight is ideal for
Site owners who already use Elfsight for other widgets, social proof, reviews, forms, and want to add a simple pricing or BMI calculator without another tool subscription.
The verdict
Bottom line
Elfsight is a reasonable choice if you already use it for other widgets and need to add a simple calculator, one subscription covering many widget types is a real convenience. For complex calculators (multi-variable financial formulas, medical calculations, specialized business tools), Elfsight's formula engine is documented as limited by independent reviewers. Calcupedia's pre-built library covers those cases without any formula work on your end.
Embed Anywhere
Code-first or no-code, it just works on all platforms.
Frequently Asked Questions
The free plan is capped at 200 monthly views and deactivates once exceeded. The Basic plan (roughly $4-6/month depending on billing) allows 5,000 views and 3 widgets. The Pro plan allows 50,000 views and 9 widgets. A view counts each time the widget loads.
Elfsight supports IF/THEN conditions and basic math operations. Independent reviews have noted it struggles with complex multi-variable formulas or sophisticated conditional logic, detailed mortgage amortization or multi-step ROI calculators, for example. For simple pricing or tip calculators it performs well.
No. Elfsight provides templates for inspiration (BMI, pricing, mortgage) but each is a starting point you configure and build out yourself. Calcupedia's 2,400+ calculators are finished, QA-verified tools you can embed without configuration.
Yes, Elfsight offers single-app subscriptions so you only pay for the calculator widget. This is worth considering if you only need one simple calculator and already use Elfsight's other tools.
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