Link&Cluster vs Link Whisper
Link&Cluster
linkandcluster.com
Link Whisper
linkwhisper.comSide by side
| Figure | Link&Cluster | Link Whisper |
|---|---|---|
| Price from | Free | $1/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | Yes | Yes |
| Web | — | Yes |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 4 | 10 |
| Spec score · Internal Linking Tools | 8.8 (#3) | 8.7 (#5) |
| Documentation | The site says feature and customizer instructions plus step-by-step guides are available. | The help center contains installation, AI, sitemap, support, troubleshooting, settings, reporting and technical-guide sections. |
| Rating on WordPress.org | 5 out of 5 from 1 review | 4.1 out of 5 from 148 reviews. |
| Support | The site advertises premium support around the clock and says support is available on holidays. | The Growth, Pro, and Agency plans list Premium Support and a 1:1 call with the team. |
| System requirements | The listing requires WordPress 5.0 or newer and PHP 7.1 or newer, and says it was tested through WordPress 6.6.8. | The requirements page lists WordPress 4.9.16+, PHP 5.6 minimum (7.2+ recommended), 256 MB memory and a 30-second execution limit; the October 2026 changelog raises the minimum PHP version to 7.4. |
| What it does | Link&Cluster is a WordPress plugin for managing internal links and organizing topical content clusters. | Link Whisper is an AI-assisted WordPress plugin and Shopify app for finding, creating and auditing internal links. |
Plans
Link Whisper
- Link Whisper FreeFree
- Agency$1 a month
- Agency$1 a month
- Pro$2 a month
- Pro$2 a month
- Growth$5 a month
- Growth$5 a month
- Shopify Standard$7 a month
- Starter$8 a month
- Starter$10 a month
In their own words
Link&Cluster
Link&Cluster is a self-hosted WordPress plugin for finding internal-link opportunities and organizing topical clusters. It highlights paragraphs where links to existing content may fit, and reports internal-link counts across posts with sorting and filtering. Clusters can use categories or custom taxonomies, with links inside those groups prioritized. The plugin can insert a related-posts box into other posts, and its design and wording can be customized. Starter is free at free and includes incoming internal-link counts, outgoing external-link counts and counts by category. Pro costs $44, paid once, billed as Buy once, with lifetime updates; it adds link opportunities, taxonomy counts, cluster assistance, one-click internal links and related-post boxes. Links embedded in Editor Mode are said to remain after uninstalling. Purchases include a 14-day money-back guarantee. Installation involves uploading the plugin to WordPress’s wp-content/plugins directory and activating it. Paid support is listed through the WordPress.org forum. The WordPress.org listing says the plugin has not been tested with the latest three major WordPress releases.
Link Whisper
Link Whisper is a WordPress plugin and Shopify app for managing internal links. It suggests links for posts, which users can review before adding, and can draw on Google Search Console data and keywords from Yoast SEO, Rank Math, All In One SEO, and SEOPress. It supports editors and builders including Classic Editor, Gutenberg, Beaver Builder, Cornerstone, Elementor, and Divi. The plugin can process Advanced Custom Fields content and configured custom metafield-based content. Premium includes reports on link statistics, domain linking, clicks, and broken links. Licensed sites can suggest outbound links to one another, but inbound cross-site suggestions are not supported. Free access includes manual insertion of outbound suggestions; a limited-time Premium trial is available, and paid plans start at $97/yr. The maker says Premium does not send site content or personally identifiable information to its servers, though license checks transmit the license key, site URL, and subscription level. AI processing sends only selected post content to OpenAI; click tracking may store visitor IP addresses and site IDs on the customer's site.