Move Faster.
Break Nothing.
See every screenshot, network call, and log. Bugs have nowhere to hide.
No test code, no flakiness. See exactly what changed before you ship.
Bugs can be hiding anywhere.
Dozens of PRs waiting to merge. QA is overwhelmed. Engineers are burning hours on flaky tests. Every hour spent hunting bugs is an hour not spent shipping.
Record
Use your app in the simulator. qckfx captures every tap, scroll, and network response.
Change code
Fix a bug, add a feature, refactor, or hand a task to an agent.
Replay
Same flow, same network responses, same app state. Deterministic every time.
Diff
See exactly what changed. Accept the new baseline or fix the regression.
Know exactly what changed in your app.
qckfx is your app's system of record. See every new or changed network request, screenshot, and log. Bugs have nowhere to hide.
Built to be trusted.
Built by an ex-Meta team, behind award-winning apps featured at WWDC and applications used by billions of users.
We've got your back so you can ship without fear.
Identical Runs
Every test run is identical. Not similar. Identical.
Network Replay
Responses are recorded and replayed. Tests never fail due to slow APIs or different data.
App State
Auth tokens, cached data, onboarding flags. Exact same state as the recording.
Seeded Values
Calendars, timestamps, UUIDs are seeded. Same every run.
Accessibility Matching
Layout changes don’t break your runs. We match on the accessibility tree.
Agents verify themselves.
qckfx has MCP integrations for Claude Code, Cursor, and Codex. Your agent makes a change, picks flows to verify, and gets back visual diffs, network timelines, and logs. Know exactly what changed.
Read DocumentationSolo
Start solo.
Team
Share with your team.
CI
Run on every PR.