KillerConversions

KillerConversions Free provides useful enquiry forms with basic conditional fields, local entries, CSV export, ordinary staff notifications and requested visitor confirmations, without a vendor account. The separate Pro add-on supplies estimate calculations, multi-step forms and file uploads, alongside its existing advanced workflows.

• Visual builder with live preview, keyboard field ordering, block and shortcode embeds.

• Private design drafts, explicit publishing, conflicting-save protection and ten-design history. Credentials and operational settings stay outside design history.

• Basic show/hide conditions for ordinary enquiry fields.

• Repeatable groups: up to three groups, ten rows per group and six text, email, number, date or select fields per row. Form design drafts retain the group structure; email, CSV and privacy tools retain structured answers. Requires JavaScript; nested groups, uploads, consent, pricing and conditional dependencies inside groups are excluded.

• Pro add-on: estimate calculations, quantity × unit-price rows, fixed extras and server-authoritative itemisation.

• Pro add-on: multi-step navigation and private PDF, PNG, JPEG and UTF-8 TXT uploads, with validated host-aware limits.

• With the separate Pro companion: explicit encrypted visitor drafts with 1/3/7-day expiry and private resume links. No automatic capture of incomplete answers.

• Local inbox, search/filter/star, basic assignment, status, submitted-entry counts and wide/long CSV. These counts are not conversion rates.

• Queued staff notifications and separately requested visitor confirmations, validated Reply-To, bounded retries, failure status and guarded resend. Your site controls From.

• Optional basic Brevo and MailerLite subscriber actions with separate visitor subscription consent.

• Retention, deletion/export and storage health for entries, private files and saved drafts.

• Sanitised configuration export/import. Entries, credentials, private destinations and live operational state are excluded by default; review local destinations after import.

• Eight Free starters: contact, agency brief, quote enquiry, consultation request, feedback, newsletter interest, service enquiry and callback request. Pro adds estimates and multi-step applications with uploads.

No artificial form count, submission count, time trial, forced attribution or marketing signup is imposed. Hosting resources, safety limits and retention still apply. Free does not download or install the separate Pro companion.

Pro adds estimate calculations, multi-step forms, uploads, advanced pricing, nested logic, generated PDFs, routing, integrations and staff operations; its code ships separately.

Administrators can open Explore Pro for Quotes & PDFs, Save & resume, and Follow-up & teams. Examples show genuine Pro output or screens with fictional details and do not change forms or send data. Links in the editor open separately so unsaved work stays in place.

Each example shows what is already included in Free. Pro preview visibility and contextual suggestions can be hidden or restored for that administrator on this site.

Local Free features do not expire and do not require a vendor account or commercial activation. Payments, signatures, AI generation, A/B tests, multisite and a full CRM are outside scope. No conversion-lift, inbox, security or universal accessibility guarantee is claimed.

Free and Pro

Edition overview: Free retains enquiry forms, basic conditional fields, administrator draft recovery, local entries, CSV export and ordinary notifications. Pro supplies estimate calculations, multi-step forms and file uploads, plus visitor save-and-resume, encrypted incomplete applications and private links.

Install Free first, then a compatible Pro release, without uninstalling. 3 pair. Missing or incompatible Pro pauses workflows that depend on Pro; saved data and privacy operations remain.

Pro requires one successful licence activation for this site before using its editing tools. After activation, ordinary expiry or a licensing-service outage does not remove earned access.

Pro workflow examples

Explore Pro includes local Free/Pro comparisons, a fixed interactive pricing illustration and a bundled fictional PDF produced by Pro. txt. The calculator uses example rates only; it does not add premium pricing to your forms.

Opening examples sends no data and changes no form. Contextual hints can be hidden or restored for your administrator account on this site; the examples page stays available. This local preference is retained by default and removed by the documented explicit full uninstall.

Source code

All first-party PHP, JavaScript and CSS source is included in this plugin. js are the exact editable files WordPress loads; there are no separate minified bundles or required build steps. txt for the source map, optional formatting instructions and bundled font/PDF attribution.

WordPress supplies the declared wp-* JavaScript dependencies through its own script loader; no copies of those libraries are bundled here.

Privacy, storage and external services

Local core form use makes no publisher telemetry, licence or marketing requests. The optional website registration and marketing signup described below make requests only after explicit choices. Assets are bundled locally except the explicitly enabled Turnstile service below.

Completed entries, files and provider credentials are private database data, not encrypted at rest by the plugin. Protect database access and backups.

KillerConversions optional website registration and emails

com/newsletter-api/v1/kc-welcome/. Each request includes its consent wording version, time and a random scoped connection reference. Email-only requests omit the site URL from the body and HTTP headers.

Neither purpose sends form answers, customer lists, licence credentials or preview-click history. A voluntarily reported domain is not verified domain ownership or a count of active installations. These choices are independent of Pro licensing and of visitor subscriptions to Brevo or MailerLite.

Privacy & emails lets you stop domain sharing and manage the email request made there. Confirmed email preferences and unsubscribe are available through private email links. An unreachable service leaves a truthful retryable removal state; local sharing stops immediately.

Copied or moved sites pause the connection and require fresh choices. Use the original site’s controls or private email links to manage its existing relationship. Before explicitly removing all local plugin data, complete remote withdrawal; uninstall alone cannot guarantee it.

com/privacy/#plugin-registration. com/checkout/terms.

Domain reports expire after 90 days without another explicit request; no heartbeat is sent. Initial enrollment retries and pending email confirmations expire after 48 hours. Confirmed subscriptions expire after at most 730 days.

The credential and consent attribution needed to stop emails requested here remain while that connected subscription is active. Stopped or unattached opaque controls expire after 90 days; consent and suppression records may remain for 180 days. Scheduled cleanup and backups have separate retention limits.

com/newsletter/privacy.

Focus, preview visibility and explicit Remember this workflow choices stay local. A remembered workflow is retained for seven days and rechecks the saved form before continuation. Browsing a preview does not record a workflow choice or grant permission to send data.

The optional consent record contains private connection material needed for authenticated withdrawal; privacy exports do not include that credential.

When Pro is active, saved visitor drafts are encrypted using Sodium and WordPress salt-derived keys; changing or losing those salts can make existing drafts unreadable. The plugin reports decryption failure without exposing answers or tokens. Resume tokens are hashed in storage and live in the private link fragment.

Anyone holding a valid link can access that draft. Expiry runs from first save; consent/permission choices need a fresh visitor decision. Quota failure preserves an existing saved application.

Site backups have their own retention.

Entry retention defaults to 90 days and can be set to 1–3650 days for new entries. Daily cleanup depends on WordPress cron. Pro visitor draft storage is capped at 64 MiB per form and 256 MiB per site; hosting capacity can reduce limits.

Completed-entry/file storage has a baseline site budget and a health display. Deleting an entry removes linked files and jobs. Privacy exports/erasure locate entries by submitted email fields; records without one need administrator review.

Email/provider copies are outside local erasure.

Optional editor recovery stores a design in that administrator’s browser for up to 24 hours, excluding credentials, recipients and nonces. Ten-design history is local. Explicitly remembered workflow links are local per-administrator references with seven-day expiry.

These actions make no external request.

New entries retain original field definitions. Same-page browser retries use a random attempt ID held in memory; the database retains its hash and committed entry reference until erasure/expiry. This does not cover a fresh page load, legacy clients or the no-JavaScript fallback.

Abuse protection uses short-lived salted rate hashes, not stored raw IPs. Submitted-entry counts require no visitor tracking.

Transactional email

When configured, the queue passes the selected staff notification or separately requested visitor confirmation to WordPress wp_mail() and your site’s mail provider. A submitted email can become validated Reply-To; it does not replace From. Estimates include their saved breakdown.

Confirmation consent, marketing subscription and saved-link purposes remain separate. The plugin provides no SMTP service, bounce tracking or receipt guarantee. Disable a destination to stop future jobs; delivered copies need separate removal.

Brevo (optional)

An administrator explicitly enables and acknowledges this connection. com/v3/contacts to create/update a subscriber contact. It does not send unrelated answers or files, force unsubscribe flags, perform double opt-in or send a campaign.

Your Brevo list automations may run. Disable the connection to stop future requests; remove its saved credential to forget it locally. Provider copies require separate removal.

com/legal/privacypolicy/.

MailerLite (optional)

com/api/subscribers to create/update a subscriber. It does not send files or unrelated answers, request forced resubscription, or send a campaign. Group automations may run under your provider settings.

Disable and remove credentials to stop future local requests; provider data needs separate removal. com/legal/privacy-policy.

Changing a destination, mapping or consent meaning cancels old pending work instead of reinterpreting it. Reviewed resend preserves recorded consent. Copied-site protection pauses outgoing work after a recorded address/environment change; identical-identity copies and pre-baseline copies need operator review.

Cloudflare Turnstile (optional)

Turnstile defaults off and needs widget keys plus service acknowledgement. js; Cloudflare processes browser/network signals. com/turnstile/v0/siteverify.

Form answers are not included. Protected forms require JavaScript; editor preview never loads it. Disable protection to stop requests and remove the saved secret to forget it.

com/website-terms/.

Data on uninstall

Deactivation and normal uninstall preserve forms and entries. php before uninstalling Free. Back up needed data first.

This removes plugin-owned data for the current site; it does not retract email/provider copies or release a remote licence seat. Multisite network removal is unsupported.

Developer notes

All executable source ships in readable form. No compilation is needed. The optional remote services are disclosed above.

org submission or endorsement is implied by preparing this package.