Case Study

70% fewer bugs. 30% faster engineering cycles.

How Postilize achieved full regression testing with Checksum

30%

faster engineering cycles

0%

flakiness

70%

reduction in bugs

About

Postilize

Postilize is a SaaS company providing AI assistants to automate social media and email outreach, boosting performance that increases customer touchpoints and keeps businesses informed and connected with clients and prospects.

the problem

Two steps forward, one step back

As an innovative and fast-growing company, Postilize prioritized rapidly launching new features to stay ahead. However, as the team expanded and platform complexity increased, maintaining the balance between speed and stability became increasingly difficult.

The team found themselves in a frustrating cycle: for every two steps forward, they had to take one back, constantly firefighting regressions. Instead of progressing smoothly after feature launches, they faced a growing backlog of issues that needed immediate attention.

This situation hindered the team’s ability to focus on planned sprints. Frequent context switching between fixing bugs and building new feature created inefficiencies and made it hard to maintain momentum.

the Solution

AI-driven testing with Checksum

Checksum uses AI to automatically generate end-to-end browser tests based on real user activity. Instead of manually writing and maintaining tests, Checksum’s AI learns how to use your app from user sessions, identifies relevant test cases, and adapts to changes in your code.

Auto-generation

Tests are generated automatically using proprietary AI, saving months in development time writing and maintaining tests.

Realistic coverage

Models are trained on actual user activity, so tests are realistic and coverage cases as well as the happy path.

Self-healing tests

Tests are built and run using advanced ML models trained on your specific software, making them robust and adptive.

the Results

Ship faster, ship confidently

Ship fast because your testing suite has your back. Full test coverage from day one.

Full test suite with minimal effort

Every pull request is automatically tested and deployed to production, backed by comprehensive and durable testing.

Complete CI/CD pipeline

Auto-healing tests

As new features ship, tests automatically adapt, keeping the testing suite current and CI/CD results accurate.

With Checksum, Postilize is able to simply ship faster. Having a full testing suite with no flakes and little effort on our side allows us to spend less time firefighting, get immediate feedback, and ship to production daily.

Co-founder, Postilize