Why customers choose Optimizely over AB Tasty

AB Tasty lacks the speed and sophistication that experimentation teams need to succeed. See how Optimizely outclasses AB Tasty at every level of digital maturity and every stage of your experimentation lifecycle.

Compare for yourself

	Optimizely	AB Tasty
Error-proof Stats Engine for superior results Easy to use sequential testing with enterprise-grade reporting, and false discovery rate control
Stats Accellerator for faster results Have the option to speed up getting to learnings, by allowing the system to send more traffic to one variant when more data is needed
Show the winning variant sooner Using multi-arm bandit machine learning, serve more people the outperforming variant
Mutually exclusive experiments Prevent unwanted cross-contamination from running multiple experiments at once on the same pages
Easy-to-use visual editor Quickly edit any element on your website by clicking, dragging and previewing live
Test using offline events Include even more valuable data in your experiments like offline sales and events from other applications, allowing you to optimize anything
Share data with Snowflake and other powerful integrations Send your data anywhere with easy raw data exporting and integations to apps like Snowflake
Ideate, collaborate, build and dashboard tests Work together and gather ideas from anywhere in your organization. Then, score impact and view results in one place
Run unlimited concurrent experiments on feature flags or any campaign Unlock a culture of hypothesis thinking that spreads throughout your organization
Easy to develop on and extend Roll out features in-code using SDKs available in 10+ programming languages for those more technically inclined
Advanced personalization tools Designed to build the richest, most relevant experiences and use machine learning to power audience creation
Global ROI focused support On-demand services, and strategic consulting team to increase your experiment velocity and win rate
Advanced Feature Management Roll out (or back) new features to users in-code with controls anyone on your team can use		Basic

Slow load times and decisioning latency

AB Tasty Performance

Optimizely reduces client-side latency by moving experiment evaluation from the browser to the Edge. AB Tasty has no Edge-based experiment delivery and customers cite AB Tasty’s latency as a key concern.
Complaints in public reviews cite AB Tasty’s page load times, library widgets and the weight of AB Tasty’s tag as key concerns impacting performance and latency.

Limitations to running many tests at the same time

AB Tasty Scale

AB Tasty lacks a Stats Engine to support experimentation at scale and lacks an elegant way to avoid collisions when running multiple tests at the same time. Instead, AB Tasty offers a cumbersome and manual workaround using filters to identify conflicts.
Optimizely eliminates spill-over effects natively so digital teams can run multiple experiments on the same page or in a single app.

Cumbersome QA required

AB Tasty Single Page Apps & mobile testing

Publicly-available comments by AB Tasty customers reveal challenges on mobile and single page applications (built in REACT, Angular, Vue, etc.) citing time-consuming QA. Reviews flag the following issues:

Time-consuming QA due to the tag reloading and a capricious page editor with single-page application websites
Difficult QA process on mobile, as editorial changes aren't reflected accurately
Technical/expert profile is recommended for complex setups especially on Single Page Applications