Calculated Fields Form – AI Form Builder for WordPress – Contact, Payment, Quote, Quiz & More vs Flinkform – Forms for the Block Editor

Calculated Fields Form is a full-featured WordPress form builder plugin. It lets you create any type of form — from simple contact forms to complex multi-step booking systems, quote generators, order forms, and payment forms — without writing a single line of code. Its standout capability is real-time dynamic calculations: form fields can automatically compute results (totals, prices, dates, distances, scores) based on values entered by the user. This makes it the ideal choice whenever a form needs to respond intelligently to user input. Is Calculated Fields Form only for forms with calculations? No. Despite its name, Calculated Fields Form is a complete, general-purpose WordPress form builder suitable for any use case. The “calculated fields” refer to an advanced feature the plugin offers on top of all standard form capabilities. You can use it to build: Contact forms — simple name, email, and message forms Booking and reservation forms — with date pickers and availability logic Quote and estimate forms — with automatic price calculation Order forms — with dynamic product pricing Payment forms — integrated with PayPal, Stripe, and many other gateways Registration and sign-up forms — for events, services, or user accounts Survey and quiz forms — with conditional logic and scoring Lead generation forms — connected to Mailchimp, HubSpot, Salesforce, and more Mortgage and loan calculators — with financial operation modules Shipping and logistics forms — with distance and travel time calculations Why choose Calculated Fields Form over other WordPress form plugins? No recurring fees — all commercial versions are a one-time purchase with lifetime updates AI-powered form builder — generate forms and formulas using an integrated AI assistant 4.9/5 rating with over 960 verified reviews on WordPress.org 40,000+ active installations Compatible with all major page builders — Gutenberg, Elementor, Divi, Beaver Builder, WPBakery, SiteOrigin Extensive add-on ecosystem — payment gateways, CRM integrations, PDF generation, e-signatures, and more Real-time calculations — a capability that most other form plugins lack or offer only in expensive tiers Actively maintained — updated regularly with new features and compatibility fixes At the moment, the plugin supports multiple AI providers, including Anthropic Claude, OpenAI, Gemini, MiniMax, DeepSeek, Kimi, as well as all AI connectors supported by the new WordPress 7.x Connectors module. The visual drag-and-drop form builder requires no developer knowledge. Available controls include: text fields, numbers, currency, date/time pickers, slider controls, email, radio buttons, checkboxes, container fields, multi-page controls, QR code readers, voice recording fields, calculated fields, and many others. All forms are fully mobile responsive. Features Core form builder features: Visual drag-and-drop form builder with an intuitive and interactive interface. General-purpose form controls: radio buttons, checkboxes, dropdown lists, date/time pickers, sliders, numeric fields, currency fields, email fields, text areas, and more. Calculated fields that automatically compute values based on other form fields. Insert as many calculated fields as needed. Advanced formula editor with syntax highlighting and real-time error detection. Conditional logic (dependency rules) to show, hide, enable, or disable fields based on user input — ideal for building guided wizards. Multi-page forms using page break controls between field groups. Field grouping inside container controls (Div, Fieldset, and Popups). Multi-column layout support for organized, professional-looking forms. Dozens of predefined form templates to use as starting points. Multiple design themes and templates. Email notifications sent to the site owner when a form is submitted. Form version history to recover previous versions. Form duplication to reuse existing work. Troubleshooting and optimization tools. Option to exclude forms from search indexing for improved site speed. Supported calculation types: Financial calculations: totals, taxes, discounts, interest rates, loan amortization. Date and time calculations: differences between dates, age calculations, booking duration. Mathematical operations: arithmetic, percentages, rounding, trigonometry, and complex functions. Text processing: string manipulation, concatenation, and formatting. Distance calculations: compute distances and travel times between locations using Google Maps. Chart generation: create charts dynamically from form data using Chart.js. External service calls: retrieve real-time data from third-party APIs within form equations. Page builder integrations: Calculated Fields Form integrates natively with all major WordPress page builders: Classic WordPress Editor Gutenberg (Block Editor) Elementor Page Builder by SiteOrigin Beaver Builder WPBakery Page Builder DIVI Builder For any other editor, use the shortcode to insert forms anywhere: [CP_CALCULATED_FIELDS_ID id="1"] Other features: Duplicate any form to reuse and adapt previous work. Built-in troubleshooting and performance optimization area. Disable forms from search indexing to improve website speed. Form version control to recover previous versions. Free vs. Commercial Versions The free version includes the complete visual form builder, notification emails to the site owner, basic calculation operations, conditional logic, design customization, multi-column layout, and submission storage on the website for review. Commercial versions (Professional, Developer, and Platinum) add payment gateway integration, confirmation emails to users, advanced data source controls, financial and distance operation modules, chart generation, CRM integrations, PDF generation, e-signatures, and more. All commercial versions are available as a one-time purchase with lifetime access to plugin updates. Visit https://cff.dwbooster.com/download for details. Professional version features: All features of the free version. Send confirmation emails to users with their submitted data. PayPal integration and Stripe integration — dynamically compute the charge amount using a calculated field. SCA (Strong Customer Authentication) compatible with PSD2 (EU Payment Services Directive). Import and export forms between WordPress sites. Form protection: CAPTCHA, WordPress nonces, and honeypot fields. “Thank You” page with a summary of the form submission. Dashboard widget showing the last week’s form submissions. Form caching to increase rendering speed. Export submissions to CSV for use in Excel, OpenOffice, LibreOffice, or any spreadsheet tool. Developer version features: All features of the free and Professional versions. Advanced controls connected to external data sources: databases, CSV files, WordPress posts, taxonomies, user data, and JSON objects. Financial operations module: interest, amortization, and other financial calculations. Date and time operations module: advanced date arithmetic and formatting. Distance and travel time module: powered by Google Maps. Chart.js operations module: generate dynamic charts from form data. Script to save form data to an external database. Add-ons included in the Developer version: Server-Side Equations add-on: Run equations on the server for better performance and security. Verification Code add-on: Email and phone verification with code input before form submission. WooCommerce add-on: Link forms to WooCommerce products to calculate prices, weight, and dimensions. SalesForce add-on: Sync form data with your Salesforce account. WebHooks add-on: Send form data to Webhook URLs; connect with Zapier, IFTTT, and more. User Permissions add-on: Restrict form access and let users manage their own submissions. User Registration Form add-on: Create user sign-up and registration forms. Platinum version features: All features of the free, Professional, and Developer versions. Extending features add-ons: CSV Generator add-on: Export form data to CSV files and attach them to notification emails. PDF Generator add-on: Create PDF documents from submitted form data and include them in emails. Signature add-on: Add e-signature fields — users can sign using a mouse or touchscreen. Unique Fields Values add-on: Ensure submitted values have not been used in previous submissions. iCal add-on: Send iCal attachments in emails for importing events into Google Calendar, Outlook, and more. Upload Files add-on: Save uploaded files to the WordPress media library and support additional file types. Payment gateway add-ons: PayPal Pro add-on: Accept credit card payments directly on your site without redirecting to PayPal. PayPal Checkout add-on: Integrates PayPal Checkout with support for additional payment methods. Revolut add-on: Accept payments through Revolut. Authorize.Net add-on: Accept payments through Authorize.Net. Stripe add-on: Accept payments using the Stripe payment gateway. Stripe Checkout add-on: Use Stripe Checkout for secure, form-based payments. Skrill Payments Integration add-on: Integrate with Skrill Moneybookers for payment processing. TargetPay (iDeal) add-on: Support payments via iDeal through TargetPay. Mollie (iDeal) add-on: Accept iDeal payments using Mollie. RedSys / Servired / Sermepa add-on: Enable credit card payments through Spanish bank gateways. PayTM add-on: Accept payments via cards, net banking, wallets, and EMI through PayTM. SagePay add-on: Accept secure payments using the SagePay gateway. Sage Payment add-on: Support SSL-based credit card and e-check payments via Sage. eWay add-on: Integrate with eWay for payments in Australia, New Zealand, Singapore, Hong Kong, and Malaysia. Payrexx complementary plugin: Connect forms to the Payrexx payment platform. Square Checkout complementary plugin: Accept all major cards worldwide using Square. Third-party service integrations: Google Places add-on: Enable address autocomplete using the Google Places API. Autocomplete Places add-on: Add address autocompletion via the Photon API. Google Analytics add-on: Track user actions in forms and report to Google Analytics. Dropbox Integration add-on: Move uploaded files automatically to your Dropbox account. WebMerge add-on: Generate PDFs or Office documents via FormStack using submitted form data. Sendinblue Contact add-on: Add or update contacts in Sendinblue from form submissions. PrintFriendly add-on: Create PDF files with PrintFriendly and attach them to notification emails. Mailchimp add-on: Add new subscribers to Mailchimp lists on form submission. Mautic add-on: Add or update contacts in Mautic. HubSpot add-on: Send collected form data to HubSpot CRM contacts. Twilio add-on: Send SMS messages automatically on form submission. ip2location add-on: Detect user location using the ip2location database. Third-party plugin integrations: WooCommerce add-on: Connect forms with WooCommerce to dynamically calculate product prices, sizes, and weight. Easy Digital Downloads add-on: Integrate with Easy Digital Downloads to dynamically calculate product prices. Emma add-on: Add new contacts to Emma email marketing lists. MailPoet add-on: Subscribe users to MailPoet (v2 and v3) mailing lists. AffiliateWP add-on: Connect forms with AffiliateWP for affiliate tracking. The Events Calendar add-on: Create events, venues, and more using submitted form data.= Equation and formula format for calculated fields = Calculated fields support any valid JavaScript expression or function. Below are examples of common formula patterns: Simple arithmetic: fieldname1 + fieldname2 fieldname1 * fieldname2 fieldname1 / fieldname2 fieldname1 - fieldname2 Multiple fields with grouping: fieldname1 * (fieldname2 + fieldname3) Rounding to two decimal places: PREC(fieldname2 / fieldname3, 2) Conditional logic inside a formula: (function () { if (100 < fieldname3) return fieldname1 + fieldname2; if (fieldname3 <= 100) return fieldname1 * fieldname2; })(); Complex formulas using the full function format: (function () { var result = 0; /* Your code here */ return result; })(); Operations and operators available in formulas One of Calculated Fields Form’s key strengths is that any valid JavaScript code can be used in formulas. The plugin also provides a wide library of built-in operations: Mathematical Operations and Operators Conditional Operations Date and Time Operations Health-Related Operations Energy-Related Operations Field Handling Operations Operations for Interacting with External Services Operations for Handling URLs and Query Strings Additional modules available in Developer and Platinum versions: Financial Operations Distance and Travel Time Operations Chart Generation Operations Passing external variables to form equations Use the [CP_CALCULATED_FIELDS_VAR] shortcode to create JavaScript variables from GET or POST parameters, SESSION variables, or COOKIES, and reference them inside form equations: [CP_CALCULATED_FIELDS_VAR name="varname"] Access the variable in a formula using: fieldname1 * cff_var.varname Full documentation: Variable Shortcode Reference Complementary Plugins Odoo Contacts, Google Sheets Integration, WhatsApp Button, Xero Contacts, Zoho Leads, Zoom.us Meetings Integration, Data Collector, WooCommerce Products and Variations Prices, Multilanguage Forms, Progress Bar, Upload Files Path, QR Code Generator, Database Queries, Draft Form Data, Email Validator, Reminder Emails, Rich Text Editor, Submissions Removal, Use Limit, Fields Synchronization, RegExp Validation, Autocomplete Fields, Measurement Units Converter, Create Posts, Currency Exchange, hCaptcha, and growing.

Flinkform is a form builder that lives entirely inside the WordPress Block Editor. Forms are composed from native blocks (block.json v3), styled through theme.json design tokens, and powered by the Interactivity API — no separate admin UI, no shortcodes, no jQuery. How it works Block Editor native — forms are built with block.json and the Interactivity API, directly inside the editor theme.json styling — forms inherit your theme’s typography, colours and spacing automatically Modern stack — WordPress 6.5+, PHP 8.1+, no jQuery, frontend JS under 15 KB gzipped Multi-step forms — split long forms into steps with a Page Break block, included in the free core Conditional logic — show/hide fields based on user input, included in the free core WCAG 2.1 AA — full keyboard navigation, screen-reader compatible, aria-live announcements Privacy by design — no external services, no tracking cookies, no IP tracking — everything stays on your server Features (free core) Form building * 13 field types: Text, Email, Textarea, Number, Date, URL, Phone, Select, Radio, Checkbox, Toggle, Hidden, Section Heading * Dedicated Consent field for privacy-policy agreement * Multi-step forms with Page Break block, per-step validation and progress indicator (bar, dots or numbers) * Conditional logic — show/hide fields, skip steps, gate the submit button * Two-column layout with per-field full-width override Styling * Automatic theme.json inheritance (colours, typography, spacing, border radius) * Style panel: primary colour, field style (bordered/soft/underline/minimal), label position (above/beside/floating/placeholder), submit button style (fill/outline/ghost) Notifications * Admin notification email on every submission (configurable recipient, merge tags) * Optional confirmation email to the submitter * Sends through your site’s standard WordPress mail (wp_mail) Spam protection * Always-on honeypot + signed time-based check (zero configuration) * Built-in proof-of-work challenge with accessible math fallback for visitors without JavaScript * No external service, no API keys, no tracking cookies, 100% GDPR-friendly After submission * Success message or redirect to a custom thank-you URL (with open-redirect protection) * Optional submission ID and form ID query parameters for conversion tracking (GA4, Meta Pixel, Plausible, etc.) Admin * Submissions list with search, filter by form, sort, bulk actions * Single-submission detail view with all field labels and values * Mark as read/unread * Per-form data retention with automatic daily purge Privacy Flinkform is built with privacy by default. Here is what the free core does and does not do: What the free core stores: * Form submissions (the field values visitors enter) in a dedicated database table ({prefix}flinkform_submissions) What the free core does NOT do: * It stores no IP addresses and no browser user-agent strings * It sets no tracking, analytics or marketing cookies. Flinkform sets exactly one strictly-necessary cookie — flinkform_flash (lifetime ~60 seconds, httpOnly) — and only when a form submission fails validation, to carry the error message and the visitor’s input across the page reload. Successful submissions set no cookie at all * It contacts no external service Data retention: * By default, submissions are retained until you delete them. To comply with the storage-limitation principle (GDPR Art. 5), set a per-form retention period (Form block → Data Retention) and Flinkform deletes older submissions automatically each day * Individual submissions can be deleted from the admin submissions screen at any time Data deletion: * All free-core data (the submissions table) is permanently removed when the plugin is uninstalled through the WordPress admin * Flinkform integrates with WordPress’s privacy tools (Tools > Export Personal Data / Erase Personal Data) to support data-subject access and erasure requests Source Code The complete, uncompiled source code (including the src/ directory with the unminified JavaScript/CSS that compiles into build/) is publicly available at: https://github.com/dennisbuchwald/Flinkform Build instructions (Node.js 18+ and npm required): 1. Clone the repository: git clone https://github.com/dennisbuchwald/Flinkform.git 2. Install dependencies: npm install 3. Build the compiled assets into build/: npm run build The build is powered by @wordpress/scripts (webpack). The src/ sources are excluded from the distributed plugin zip to keep it small; this repository is the canonical, reviewable source.