Calculated Fields Form vs Responsive Mortgage Calculator
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | Calculated Fields Form v5.5.2.3 · checked 23 Oct 2026 Free + paid · ★ 4.9/5 Visit Details | Responsive Mortgage Calculator v2.6.2 · checked 23 Oct 2026 Free · ★ 4.4/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 40,000+ | 7,000+ |
| Last updated | October 22, 2026 | October 24, 2026 |
| Editions | Calculated Fields Form | Responsive Mortgage Calculator |
| Pros | Live calculated fields with formulas, dates and currency; Drag-and-drop builder with conditional fields and multi-page forms; Entries stored and viewable in the WordPress admin | Widget and two shortcodes, easy to place on any theme; Currency format, compounding and amortisation settings; Single settings page with no paid upsell in the code |
| Cons | Online payments (PayPal, Stripe, Square) need paid add-ons; Free version shows upgrade prompts in several settings screens; Large plugin with many options; a learning curve for complex formulas | Detailed schedule popup sends visitor inputs to mlcalc.com; Fixed-rate loans only, as the readme describes; Readme still mentions a Pro version from 2015 with no current paid edition in code |
| Mentioned in our posts | 1 | 2 |
| More features | ||
| Other features | Calculated fields with formulas, Repeater field groups, Time slot selection for bookings, Importable form templates, AI form generator and assistant (user API key), Map widget, Opt-in feedback form to the vendor | Estimated payment from price, down payment, rate and term, Sidebar widget, Shortcodes mortgagecalculator and rmc, Amortisation period in months or years, Currency symbol, ISO code and format settings, Interest compounding period setting, Settings page under Settings menu, Detailed schedule popup hosted on mlcalc.com |
| Integrations | ||
| Payment | Stripe ($) | — |
| Other | Akismet, Google Gemini, OpenAI, Anthropic Claude, OpenStreetMap | mlcalc.com |
| Requires WordPress | 3.0.5 | 4.7 |
| Tested up to | 7.1 | 7.1 |
| Phones home | Only if you agree | No |
| External services | cff.dwbooster.com, raw.githubusercontent.com, rest.akismet.com, api.stripe.com, api.openai.com, generativelanguage.googleapis.com, api.anthropic.com, wordpress.dwbooster.com, tile.openstreetmap.org | www.mlcalc.com |
| Shortcodes | 2 | 2 |