abtest vs Apex

abtest has no write-up on Specifiction yet; its figures are above.

Apex combines A/B testing, feature flags, and personalization for e-commerce. It supports A/B, multivariate, server-side, and mobile-app tests, and is designed for six to ten concurrent experiments with pre-launch conflict checks. Each test requires a primary metric, planned sample size, and duration; results are withheld below 100 conversions. The default winner threshold is 80% confidence and can be set as high as 99%. Apex Operator reads a live page and prepares structured or code-level edits for review before launch. Guardian can pause a variant that is breaking or harming results, return traffic to control, and post an explanation to Slack. Its Likelihood to Win score uses matched evidence from 4.3 million tests, shop research, and live results. Integrations include Shopify, Shopware, WooCommerce, Centra, headless and custom storefronts, analytics, consent managers, and team tools. Developer access includes a versioned REST API, webhooks, CLI, MCP server, and SDKs; API keys have a limit of 100 requests per minute. Apex is made by Drip Trading GmbH and is available only inside a DRIP program. The free Starter plan is listed at free, with no card required; custom pricing applies to Apex and Enterprise.