Blog

Donnu A/B Blog

Complete, honest guides on CRO, A/B testing and experimentation. The most complete articles on the web, no fluff. (page 15 of 17)

Statistics

Multi-Armed Bandits vs A/B Testing: The Complete Guide

Multi-armed bandits vs A/B testing: when adaptive traffic allocation wins, Thompson Sampling explained, and a real numeric cost comparison.

Tools

Open Source A/B Testing Tools: GrowthBook and More

Open source A/B testing tools compared: GrowthBook, PostHog, Unleash, and Flagsmith by self-hosting cost, license, and statistical rigor.

Tools

A/B Testing Tools Pricing Compared (2026)

A/b testing tools pricing compared: how VWO, Optimizely, AB Tasty, Convert.com, and Kameleoon actually bill, and how to request the right quote.

Tools

Best A/B Testing Tools for Shopify (2026)

A neutral comparison of A/B testing tools for Shopify: native pricing apps, client-side platforms, and what checkout extensibility blocks.

Tools

Best A/B Testing Tools for WordPress (2026)

The best WordPress A/B testing tools for 2026, compared by caching-plugin compatibility, WooCommerce support, statistical rigor, and pricing.

Tools

Best Free A/B Testing Tools in 2026 (Tested and Compared)

A clear look at free a/b testing tools in 2026: what is really free forever, what is a trial in disguise, and the real limits of each option.

Tools

Google Optimize Alternatives in 2026 (Honest Comparison)

Google Optimize was sunset in 2023. We compare the real Google Optimize alternative options in 2026 by statistical rigor, not listicle guesswork.

Tools

Unbounce vs Instapage: Landing Page Testing Tools Compared

Unbounce vs Instapage compared by embedded A/B testing depth, Smart Traffic, AdMap, integrations, learning curve, and pricing tiers.

Tools

Convert.com vs VWO: Which A/B Testing Tool Fits Your Budget?

Convert.com vs VWO compared on pricing transparency, privacy, support, and product scope, to help a mid-market team pick the right A/B testing tool.