

Colour and size, each in its own card, with the sizes carrying their own prices and a total that keeps up as the shopper picks.
AddOnBoss gives any product its options, add-ons and personalisation without generating a single variation. A product with five colours and five sizes would be twenty-five variations to build and maintain. Here it is one option set, attached in a click, and the product stays a single simple product. Your product editor stays fast, and adding a colour next month does not mean rebuilding every combination.
Build a set once, attach it anywhere. Colours as swatches, finishes as buttons, weights as a dropdown. Add a field for the name to engrave or the message to print. Each choice can carry a charge, and that charge behaves like part of the price rather than something stapled on afterwards.
The money is correct, in the free plugin. Every add-on charge joins the cart line through WooCommerce’s own pricing and tax. It is taxed exactly as the product is, in the same basis your store displays, and it lands on the order as part of the line. It is not a fee added after tax and it is not a surcharge that quietly ignores your tax class. This is the thing worth checking before you commit to any options plugin, because getting it wrong is invisible until an accountant finds it.
The free plugin is a whole product, not a taste of one. Option sets, several-choice sets with bounds, seven field types, groups and the full cart and order path are all here, and every one of them charges and taxes correctly. Pro adds jobs the free plugin does not attempt, like artwork upload and made-to-measure pricing. It is not the same plugin with something switched off.
One engine, two plugins. AddOnBoss and BundleBoss run the same options engine and share one option-set library. A Colour set you build in either one is ready in the other, with no export, no second copy to keep in step, and no double charging when both are active.
This is the whole options product for a simple product. Build a set once, attach it anywhere, and the choices are priced and taxed as part of the line.
AddOnBoss is made by BossMage, alongside BundleBoss.
BundleBoss builds bundles, mix and match packs and build-your-own boxes. AddOnBoss puts options, add-ons and personalisation on a product’s own page. They are separate plugins and either works alone, but they were built as one engine, so running both gives you a single option-set library rather than two lists to maintain. Build a Colour set for a bundle and it is already there for a simple product, and the other way round.
Neither plugin needs the other. If you run both, keep BundleBoss updated to a version that ships the shared engine. AddOnBoss detects an older BundleBoss and waits, with a notice, rather than risking a conflict; once BundleBoss is updated it switches on by itself.
Guides and screenshots for every feature are at bossmage.com/docs/addonboss.
AddOnBoss Pro is a separate paid plugin. It adds:
Nothing you build in the free plugin is lost if you add Pro later, and nothing you built with Pro is deleted if you stop. Those settings stay on disk and come back with the plugin.
Declared compatible with WooCommerce High Performance Order Storage and with the block cart and checkout.
If AddOnBoss almost does what your shop needs, say so on the support forum for this plugin. We read every thread, and a specific description of the job you are trying to do is worth more to us than a feature name. What is being worked on next is at bossmage.com/roadmap.
AddOnBoss does not collect, store or transmit any personal data of its own.
The free version of AddOnBoss does not connect to any external service or send any data off your site.
AddOnBoss Pro is a separate, paid plugin that uses Freemius for checkout, licensing and updates. None of that is included in this free version.