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A Complete Client & Server Side Experience Optimization Platform

TeStack is an all-in-one platform that helps you run continuous experimentation and conduct user behavior research anywhere within your application.

No more guessing what your users want!

Build better products, faster, with less risks!

TeStack Summary
A/B Testing
Run A/B tests anywhere within your application! Not only on your web pages!
Feature Flags
Turn on or off any feature without the need of new deployments or your developers. Roll out new or unfinished features safely!
Multi-Variation
Test different UI variations on specific user groups to efficiently improve their experiences!
User Targeting
Deliver customized experiences by targeting specific users based on their location, device type, resolution and more!
Segmentation
Release new features gradually by targeting small user segments like traffic percentage, location, device type, resolution and more!
Kill Switches
Turn off any front-end, feature or service immediately without requiring a new deployment to roll back your changes!
Avg. increase in productivity
Avg. increase in development efficiency
Avg. increase in user retention
  • Troubled man sitting on a desk
    Building your product based on assumptions or minimal user feedback

    Wasting money and resources building your product based on your assumptions or your biggest customer's feedback is risky!

    Implementing features based on assumptions

    Wasting time and resources on unwanted features

    Constantly decreasing conversion rates

    Focusing on the minority of your customers

    Maintaining functionality that nobody is using

    Not knowing which features have the greatest impact on your product

  • A-B Testing flow chart
    Deliver better customer experiences by experimenting anywhere in your application
    Experiments show us, with scientific precision, what works and what doesn't work.
    Tests help you reduce risk, fail fast and roll out only winning ideas!

    Build your product based on the actual user needs

    Deliver great user experiences

    Improve conversions dramatically

    Turn every feature into a learning exercise

    Reduce the deployment risks

    Gradually roll out new features

    Test new features on specific user groups

    Manage your features without new deployments

    Run tests and user segmentation anywhere

    Smart Tests with win/lose targets and expirations

    Advanced statistics to help you make the right choices

How it works
A/B Tests

Run A/B tests or multi-variation tests anywhere within your application!

Feature Flags

Turn on or off any feature without the need of new deployments or your developers. Roll out new or unfinished features safely!

Advanced Segmentation

Release your new features under A/B tests targeting small user segments like traffic percentage, location, device type, resolution and more!

Integrates with technologies your team is already using
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Use cases
Discover how to maximize your customer acquisition and sales by optimizing your user experiences!
Diagram demonstrating the use of tests in production
Run Tests In Production
Running tests in production environment on real users gives you the most accurate results than any kind of assumptions or feedback from cherry picked users. You will have a real understanding of the performance impact your new features make and you will be able to target specific audience or turn it off if something goes wrong. Target specific user groups, perform percentage roll outs, slowly expose new features and instantly turn them on or off without having to roll back your deployment.
Diagram demonstrating the use of multi-variation tests
A/B & Multi-variation Tests
A/B Testing and multi-variation testing allows teams to test UI and functional changes on small user groups, collect behavior data and make the right choices to maximize the retention and conversion rates effectively.
Diagram demonstrating the use of feature flags as kill switches
Feature Flags As Kill Switches
You will never have to roll back a code deployment to undo a feature release again. Any feature can be switched off at any time. Utilizing feature flags as a kill switch is a commonly used method of mitigating the risks involved in feature releases. With Feature Flags, even product and marketing teams can participate in feature testing and releases without relying on engineering support. Roll out unfinished features, experimental functionality or do a canary launch with confidence.
Diagram demonstrating the use of feature flags and tests for safer migrations
Safer Infrastructure Migrations
Whether you are making structural changes to your system, migrating to a new database, rolling out a new front end, everything can be risky. You can leverage the power of feature switches to maintain system stability while performing these operations. Use a percentage roll out to validate the new system, migrate your users to the new database gradually or limit the percentage of users that will see the new front-end as you observe their behaviors through tests. All that, with the confidence that they can be turned off in a matter of seconds.
Diagram demonstrating the use of user groups to target specific audience
User Targeting & Beta Testing
Target your users based on their location, device type, resolution etc and build user groups as needed. With this powerful tool you have total control over who sees what at any given time. Create beta, canary or early adopter user groups easily and control their experience by collecting data and analyzing them.
Diagram demonstrating the use of user groups to target specific audience
Customer Focused Features
Define special user groups for specific customers and enable exclusive functionality only for them. Leverage the power of multi-tenant applications by providing your users with different functionality based on their tenant. By using this feature your product team can evaluate how useful are specific features and what audience is using them on what frequency, helping in removing obsolete or redundant functionality sooner with better visibility.