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Zero Middleware
Native WordPress runtime execution with 0 SaaS latency.
GPLv2 Licensed
100% unencrypted code. Inspect, extend, and deploy freely.
PHP 8.3 Ready
Tested against WP 6.7+ & Gravity Forms 2.9+ core.
WordPress Add-onv1.0.0
Formidable High-Availability Failover & Offline Buffer Pro
Offline IndexedDB submission cache with auto-retry on network reconnection.
4.9(1,200+ developers)
480 downloads
Billed annually
All-Access Pass
Explore →Unlock All 400+ Plugins for $199/yr
Unlimited sites, future releases & priority support.
Included With Your Purchase
Instant ZIP Download — Clean, unencrypted GPLv2 code
1-Click Automatic Updates — Directly from WordPress Admin
1 Year Priority Ticket Support — Answers in <4 hours
30-Day Money-Back Guarantee — 100% risk-free trial
100% Risk-Free 30-Day GuaranteeIf this add-on does not solve your exact Gravity Forms workflow requirement, our engineering team will resolve it or issue a prompt 100% refund.
256-Bit SSL Encrypted View Documentation
Core Capabilities
- Service Worker & IndexedDB client-side offline storage engine
- Respondents can fill and submit forms with zero internet connection (field audits, trade shows)
- Background sync: auto-dispatches queued submissions when online connection resumes
- Visual offline status banner informing user that entries are safely buffered
- Exponential backoff retry policy if server returns 502/503/504 error codes
- Prevents double submissions with cryptographic client request UUID deduplication
Technical Specifications
Versionv1.0.0 (Production)
PlatformWordPress
PHP Compatibility8.0 – 8.3+
WordPress Compatibility6.0 – 6.7+
LicenseGPLv2
Updates1-Click Automatic
Architectural
Overview
Formidable High-Availability Failover & Offline Buffer Pro ensures zero form submission loss during network drops. Submissions are saved locally in browser IndexedDB and sync automatically when internet restores.
Frequently Asked Questions
Frequently Asked Questions
How do I install and configure Formidable High-Availability Failover & Offline Buffer Pro?
Download the signed ZIP file from GravityHive, navigate to Plugins → Add New → Upload Plugin in your WordPress admin, activate the plugin, and enter your license key under Form Settings → GravityHive Licenses to enable automated 1-click updates.
Is Formidable High-Availability Failover & Offline Buffer Pro compatible with WordPress Multisite and latest PHP?
Yes, Formidable High-Availability Failover & Offline Buffer Pro is fully tested and supported on PHP 8.0, 8.1, 8.2, and 8.3, WordPress 6.0+, and Gravity Forms 2.7, 2.8, and 2.9+, with full WordPress Multisite (WPMU) compatibility.
What is the refund policy for Formidable High-Availability Failover & Offline Buffer Pro?
GravityHive offers a 30-day risk-free money-back guarantee. If you encounter any technical issues our engineering team cannot resolve, you receive a prompt 100% refund.
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