Title: Init User Engine – Gamified, Fast, Frontend-First
Author: Init HTML
Published: <strong>17. julija 2025</strong>
Last modified: 17. maja 2026

---

Tykace pytaś

![](https://ps.w.org/init-user-engine/assets/banner-772x250.png?rev=3329854)

![](https://ps.w.org/init-user-engine/assets/icon-256x256.png?rev=3329854)

# Init User Engine – Gamified, Fast, Frontend-First

 Wót [Init HTML](https://profiles.wordpress.org/brokensmile2103-1/)

[Ześěgnuś](https://downloads.wordpress.org/plugin/init-user-engine.1.5.2.zip)

 * [Drobnostki](https://dsb.wordpress.org/plugins/init-user-engine/#description)
 * [Pógódnośenja](https://dsb.wordpress.org/plugins/init-user-engine/#reviews)
 *  [Instalacija](https://dsb.wordpress.org/plugins/init-user-engine/#installation)
 * [Wuwiśe](https://dsb.wordpress.org/plugins/init-user-engine/#developers)

 [Pódpěra](https://wordpress.org/support/plugin/init-user-engine/)

## Wopisanje

**Init User Engine** is a lightweight, no-bloat user system for modern WordPress
sites. It’s designed for maximum frontend flexibility and gamified user engagement.
All dynamic interfaces are rendered via JavaScript with real-time REST API interaction.

No jQuery. Minimal settings. Smart by default.

What you get:

 * Display user avatar and dashboard via shortcode
 * Show level, EXP, Coin/Cash, and full user wallet
 * Let users check-in daily and receive timed rewards
 * Auto-track referral registrations with reward system
 * Allow users to buy VIP status using in-site currency
 * Built-in inbox for notifications (uses custom DB table)
 * Custom avatar support with upload & preview modal
 * Send custom notifications to selected users or all members from wp-admin

This plugin is the core user system behind the [Init Plugin Suite](https://en.inithtml.com/init-plugin-suite-minimalist-powerful-and-free-wordpress-plugins/)–
optimized for frontend-first interaction, extensibility, and real-time gamification.

GitHub repository: [https://github.com/brokensmile2103/init-user-engine](https://github.com/brokensmile2103/init-user-engine)

### Features

 * Avatar shortcode `[init_user_engine]` + modal dashboard
 * Avatar system with upload, preview, and revert support
 * EXP & Level system with hookable progression logic
 * Coin & Cash wallet system with transaction logs
 * Daily check-in with streak milestones & online bonus timer
 * Inbox system with pagination, read/claim/delete
 * VIP membership system with Coin-based purchase & expiry
 * Referral module with cookie-based signup tracking
 * Redeem Code / Gift Code module – code in, rewards out
 * REST API for all features (read/write/modify)
 * Action/filter hooks for full customization
 * Pure Vanilla JS frontend – no jQuery, no server bloat
 * Admin notification panel to send messages to selected users or all members

### Developer Hooks

### Filters

 * `init_plugin_suite_user_engine_online_minutes` – Modify required online minutes
   after check-in
 * `init_plugin_suite_user_engine_vip_prices` – Modify VIP package prices
 * `init_plugin_suite_user_engine_referral_rewards` – Modify referral rewards
 * `init_plugin_suite_user_engine_localized_data` – Modify frontend JS data
 * `init_plugin_suite_user_engine_calculated_coin_amount` – Modify Coin reward before
   apply
 * `init_plugin_suite_user_engine_calculated_exp_amount` – Modify EXP reward before
   apply
 * `init_plugin_suite_user_engine_exp_required` – Modify EXP required per level
 * `init_plugin_suite_user_engine_checkin_milestones` – Set milestone streak days
 * `init_plugin_suite_user_engine_format_inbox` – Modify formatted inbox data
 * `init_plugin_suite_user_engine_render_level_badge` – Customize level badge HTML
 * `init_plugin_suite_user_engine_inbox_insert_data` – Modify inbox data before 
   inserting into database
 * `init_plugin_suite_user_engine_validate_register_fields` – Validate or modify
   registration fields before account creation
 * `init_plugin_suite_user_engine_after_register` – Hook after successful user registration(
   pass user ID and submitted data)
 * `init_plugin_suite_user_engine_daily_tasks` – Add or modify daily task list and
   logic
 * `init_plugin_suite_user_engine_captcha_bank` – Extend or modify the internal 
   captcha question bank used for fallback validation
 * `init_plugin_suite_user_engine_format_log_message` – Customize transaction log
   message display with access to entry data, source, type, and amount
 * `init_plugin_suite_user_engine_should_keep_original` – Override decision to keep
   original uploaded avatar (GIF or other formats)
 * `init_plugin_suite_user_engine_vip_expire_soon_threshold` – Modify the threshold(
   in seconds) used to determine when VIP is considered close to expiration
 * `init_plugin_suite_user_engine_body_vip_classes` – Add, remove, or modify VIP-
   related CSS classes applied to the `<body>` element
 * `init_plugin_suite_user_engine_theme_colors` – Modify theme color system (primary
   and active colors)

### Actions

 * `init_plugin_suite_user_engine_level_up` – When user levels up
 * `init_plugin_suite_user_engine_exp_added` – After EXP is added
 * `init_plugin_suite_user_engine_transaction_logged` – After Coin/Cash is logged
 * `init_plugin_suite_user_engine_exp_logged` – After EXP log is recorded
 * `init_plugin_suite_user_engine_inbox_inserted` – After new inbox message
 * `init_plugin_suite_user_engine_referral_completed` – When referral is completed
 * `init_plugin_suite_user_engine_after_checkin` – After user check-in
 * `init_plugin_suite_user_engine_after_claim_reward` – After user claims reward
 * `init_plugin_suite_user_engine_vip_purchased` – After VIP is purchased
 * `init_plugin_suite_user_engine_add_exp` – Triggered when adding EXP via hook
 * `init_plugin_suite_user_engine_add_coin` – Triggered when adding Coin via hook
 * `init_plugin_suite_user_engine_coin_changed` – After user’s Coin balance is updated
 * `init_plugin_suite_user_engine_cash_changed` – After user’s Cash balance is updated
 * `init_plugin_suite_user_engine_admin_send_notice` – When admin sends notification
   via wp-admin.

### REST API Endpoints

**Base:** `/wp-json/inituser/v1/`

 * `POST /register` – Create a new user account
 * `POST /checkin` – Daily check-in
 * `POST /claim-reward` – Claim reward after online duration
 * `GET /transactions` – Get Coin/Cash transaction log
 * `GET /exp-log` – Get EXP log
 * `GET /inbox` – Get inbox messages
 * `POST /inbox/mark-read` – Mark a message as read
 * `POST /inbox/mark-all-read` – Mark all as read
 * `POST /inbox/delete` – Delete a single message
 * `POST /inbox/delete-all` – Delete all messages
 * `POST /vip/purchase` – Purchase VIP package
 * `GET /referral-log` – Get referral history
 * `POST /avatar` – Upload new avatar
 * `POST /avatar/remove` – Remove custom avatar and revert to default
 * `GET /profile/me` – Get current user profile
 * `POST /profile/update` – Update profile information
 * `GET /daily-tasks` – Get list of completed daily tasks and rewards
 * `POST /exchange` – Convert Cash  Coin based on exchange rate
 * `POST /redeem-code` – Redeem gift code (returns Coin/Cash rewards)

### License

This plugin is licensed under the GPLv2 or later.
 You are free to use, modify, 
and distribute it under the same license.

## Screenshots

 * [[
 * Settings with options for theme color, currency labels, and admin bar/Gravatar
   control.
 * [[
 * Custom Links section for setting Register and Lost Password URLs.
 * [[
 * Check-in Reward configuration, including Coin, EXP, and Cash per check-in.
 * [[
 * Online Reward configuration based on active time with reward values.
 * [[
 * VIP Pricing (by Coin) options for various durations, including lifetime.
 * [[
 * VIP Bonus settings to configure extra Coin/EXP for VIP users.
 * [[
 * Referral Reward settings for both referrer and new user.
 * [[
 * Admin panel to send notifications with content, targeting, priority, and expiration.
 * [[
 * Login modal interface for non-logged-in users.
 * [[
 * Registration modal with username, email, and password fields.
 * [[
 * Avatar button with dropdown panel showing user info, level, stats, and quick 
   links.
 * [[
 * VIP Membership modal with Coin-based purchase options and expiration note.
 * [[
 * Inbox modal showing system messages, rewards, and user notifications.
 * [[
 * Transaction history modal showing all reward activities (check-in, referral, 
   online time…).
 * [[
 * Referral modal with shareable code/link, social sharing buttons, and referral
   history.

## Instalacija

 1. Upload the plugin to `/wp-content/plugins/init-user-engine`
 2. Activate it via the Plugins screen
 3. Use `[init_user_engine]` in any page/post/template
 4. You’re done – modals and logic load automatically

## FAQ

### How do I customize the UI?

The frontend is written in modular Vanilla JS with minimal HTML structure.
 Override
styles via your theme or inject custom JS as needed.

### Where is user data stored?

 * `user_meta`: EXP, level, Coin, Cash, VIP, referral
 * `wp_init_user_engine_inbox`: inbox messages (custom DB table)

### Can I extend or integrate it?

Yes. The plugin is built around WordPress hooks and REST API. You can inject logic
via `add_action`, `add_filter`, or build your own UI on top of the endpoints.

### Is it compatible with WooCommerce or BuddyPress?

Not officially, but it’s modular and can be integrated via code or future addons.

### How do I send messages to users manually?

Go to **Users  Init User Engine  Send Notification** in wp-admin.
 You can search
users, customize message type, link, priority, and even set expiration.

## Reviews

There are no reviews for this plugin.

## Sobustatkujuce a wuwijarje

„Init User Engine – Gamified, Fast, Frontend-First“ jo software wótwórjonego žrědła.
Slědujuce luźe su pśinosowali k toś tomu tykacoju.

Sobustatkujuce

 *   [ Init HTML ](https://profiles.wordpress.org/brokensmile2103-1/)

[Translate “Init User Engine – Gamified, Fast, Frontend-First” into your language.](https://translate.wordpress.org/projects/wp-plugins/init-user-engine)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/init-user-engine/),
check out the [SVN repository](https://plugins.svn.wordpress.org/init-user-engine/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/init-user-engine/)
by [RSS](https://plugins.trac.wordpress.org/log/init-user-engine/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.5.2 – May 17, 2026

 * Updated custom dashicon CSS to use `currentColor` for full compatibility with
   WordPress Administration Color Schemes
 * Removed hardcoded icon colors that conflicted with theme-aware color variables
 * Ensured compatibility with WordPress 7.0’s updated admin color system

#### 1.5.1 – April 22, 2026

 * Refactored migration architecture to use self-looping WP-Cron instead of admin_init
   execution
 * Introduced background migration runner (`init_plugin_suite_iue_migration_event`)
   with automatic rescheduling
 * Added transient-based locking mechanism to prevent concurrent migration execution
 * Migration process is now fully decoupled from admin traffic and runs reliably
   in low-traffic environments
 * Improved stability and consistency of batch migration for large datasets
 * Activation hook now schedules migration automatically if not already completed
 * Maintained full backward compatibility with existing migration logic and data
   structures

#### 1.5.0 – April 21, 2026

 * Migrated transaction log (coin/cash) and EXP log from user meta to dedicated 
   database tables
 * Introduced `init_user_engine_transaction_log` and `init_user_engine_exp_log` 
   tables for better scalability
 * Automatic data migration from old user meta (`iue_coin_cash_log`, `iue_exp_log`)
   with cleanup on completion
 * Migration runs in batches of 200 users to prevent timeouts on large sites and
   resumes if interrupted
 * REST API pagination for transaction and EXP history now uses true COUNT + OFFSET
   instead of loading all records
 * Added `wp_cache` support for transaction and EXP log reads with automatic invalidation
   on write
 * Database schema check is now version-gated to avoid redundant queries on every
   admin load
 * Schema and migration are also triggered via `upgrader_process_complete` for reliable
   update handling
 * Full backward compatibility maintained: all hooks, filters, and i18n strings 
   are preserved

#### 1.4.9 – April 15, 2026

 * Added filter to override theme color system (theme_color, theme_active_color)
 * Introduced centralized color hook for easier customization from themes and addons
 * Ensured safe fallback when filter returns incomplete or invalid values

#### 1.4.8 – March 25, 2026

 * Fixed check-in countdown not starting on new devices after login
 * Countdown now resets to full duration on unrecognized devices
 * Remaining time is saved only on tab hide and page unload, not every second
 * Fixed date comparison using locale-aware format to prevent UTC offset mismatch

#### 1.4.7 – March 24, 2026

 * Added wp_cache support for unread Inbox count
 * Reduced database load by caching COUNT(*) queries per user
 * Cache is automatically cleared on insert, read, delete, and bulk operations
 * Introduced centralized cache helpers and consistent naming
 * Improved performance and internal code structure for better maintainability

#### 1.4.6 – February 7, 2026

 * Fixed redeem code generation logic to respect custom codes
 * Single-use codes now preserve exact input when quantity is 1
 * Prefix + random suffix only applies to batch generation (qty > 1)
 * Multi-use and locked codes no longer force random suffixes

#### 1.4.5 – February 4, 2026

 * Fixed Inbox pagination not respecting the active filter
 * Total message count and total pages are now calculated per category
 * Prevents incorrect page numbers when switching between filters
 * Ensures accurate server-side pagination and consistent navigation

#### 1.4.4 – February 4, 2026

 * Added bulk generation for single-use redeem codes
    - Supports quantity-based creation with automatic prefix usage
    - Generates random 6-character suffix using `wp_generate_password()`
    - When quantity = 1, uses the exact input code (no random suffix appended)
 * Added safe delete action for redeem codes (only unused codes can be removed)
 * Improved redeem code creation flow with better validation, sanitization, and 
   consistent behavior across modes
 * Upgraded Inbox system with categorized filters
    - Added filters: All, Unread, System, Rewards, Activity, Other
    - Server-side filtering with correct pagination
    - Logical grouping of message types for cleaner UX
 * Minor UI and internal refinements for consistency and maintainability

#### 1.4.3 – January 28, 2026

 * Added VIP state–aware body classes for frontend customization
    - Automatically adds `iue-vip` for active VIP users
    - Adds `iue-vip-expired` for users whose VIP has expired
    - Adds `iue-expire-soon` when VIP is close to expiration (default: ≤ 1 day)
 * Introduced extensibility hooks for VIP presentation logic
    - New filter `init_plugin_suite_user_engine_vip_expire_soon_threshold` to customize
      the “expire soon” window
    - New filter `init_plugin_suite_user_engine_body_vip_classes` to allow developers
      to add or modify VIP-related body classes
 * Improved separation between VIP core logic and UI layer
    - Enables lightweight CSS-based customization without conditional checks
    - Keeps VIP business logic isolated and stable
 * Minor internal refinement for consistency and long-term maintainability

#### 1.4.2 – November 19, 2025

 * Updated **transaction logging system** for Coin & Cash
    - VIP users now automatically receive the correct **bonus %** directly inside
      the log entry
    - Log entries now include:
    - `original` (amount before bonus)
    - `amount` (amount after bonus)
    - `vip_bonus` flag and `bonus_percent` value
    - Ensures perfectly aligned behavior with `init_plugin_suite_user_engine_add_coin()`
 * Improved accuracy of VIP-related operations
    - Bonus only applies to **Coin** and only when **adding** (no bonus for deductions)
    - Avoids mismatch between displayed history and real balance changes
 * Enhanced internal data consistency
    - Log entries capped at 100 items with stable array slicing
    - Ensures clean, lightweight meta storage over long-term usage
 * Minor structural refinement for better readability and maintainable code paths

#### 1.4.1 – November 17, 2025

 * Fixed VIP bonus logic when modifying Coin balance
    - Bonus percentage now applies **only when adding** positive Coin amounts
    - Negative adjustments (deducting Coin) **no longer receive bonus**
 * Added support for `data-iue="register"`
    - Automatically opens the modal **and switches directly to the Register tab**
    - Ignores custom register URL mode (only toggles modal when active)
 * Improved WPCS compatibility
    - Added targeted `phpcs:ignore` rules for PluginCheck false positives
    - Clean handling of dynamic table names in prepared SQL queries
 * No other changes; fast patch release for immediate correctness

#### 1.4.0 – November 4, 2025

 * Improved **Admin User Overview** security model
    - Any user can view their own overview (Coin, Cash, Level, VIP info, Inbox)
    - Action buttons (Remove VIP / Toggle Avatar Upload Ban / Inbox Statistics) 
      are now restricted to administrators only
    - UI gracefully disables restricted actions for non-admin users instead of hiding
      them
 * Added server-side permission guards for sensitive actions
    - `iue_remove_vip` and `iue_toggle_avatar_ban` now require `manage_options`
    - Requests are validated using capability check + nonce verification
    - Prevents URL/REST crafting or manual calls to admin-post endpoints
 * Improved admin notices behavior
    - Success/error messages only appear for administrators
    - Notices limited to `profile.php` and `user-edit.php` screens
 * Minor code cleanup and consistency improvements to maintainable structure

View full changelog (all versions): [Init User Engine – Changelog](https://en.inithtml.com/plugin/init-user-engine/)

## Meta

 *  Version **1.5.2**
 *  Last updated **1 tyźeń**
 *  Active installations **30+**
 *  WordPress version ** 5.5 abo nowša **
 *  Tested up to **7.0**
 *  PHP version ** 7.4 abo nowša **
 *  Language
 * [English (US)](https://wordpress.org/plugins/init-user-engine/)
 * Tags
 * [check-in](https://dsb.wordpress.org/plugins/tags/check-in/)[level](https://dsb.wordpress.org/plugins/tags/level/)
   [referral](https://dsb.wordpress.org/plugins/tags/referral/)[user](https://dsb.wordpress.org/plugins/tags/user/)
   [vip](https://dsb.wordpress.org/plugins/tags/vip/)
 *  [Rozšyrjony naglěd](https://dsb.wordpress.org/plugins/init-user-engine/advanced/)

## Pógódnośenja

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/init-user-engine/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/init-user-engine/reviews/)

## Sobustatkujuce

 *   [ Init HTML ](https://profiles.wordpress.org/brokensmile2103-1/)

## Pódpěra

Got something to say? Need help?

 [Forum pomocy pokazaś](https://wordpress.org/support/plugin/init-user-engine/)