--- title: "Catch bugs before they ship." description: "Mo is an AI QA engineer that bug bashes your app. 117,010 bugs caught, each with a recording and repro steps. Plain-English tests agents execute and maintain." canonical: "https://momentic.ai/" last-updated: "2026-10-06T23:04:30Z" --- # Catch bugs before they ship. URL: https://momentic.ai/ Mo is an AI QA engineer that tests your app end to end. Verify critical flows and find bugs from a prompt. [Try for free](https://app.momentic.ai/mo) Setup for agents Tests created 77,813 Test runs executed 70,607,819 Changes verified 339,166 PRs verified 80,290 Auto-heals 8,932,104 Bugs caught 117,010 Trusted in production by teams shipping every day. "Our team's experience with Momentic has been great. Setting up tests is simple and the developer experience has been fantastic." Erdem Head of Developer Experience, Notion "Having E2E QA be part of the development process, run this fast (6.3x parallel), and at this scale (for every single pull request) is a true dream. Seriously, a green CI now has a measurable impact on my sleep quality." Glavin Founding AI Engineer, Coframe "Momentic makes it 3x faster for our team to write and maintain end-to-end tests. Startups win by shipping faster and better, and Momentic enabled us to do exactly that." Alex CTO, GPTZero "I just ran our first automated eval across 110 prompts. This would have taken well over an hour manually — I kicked it off in 5 seconds and it was done in 14 minutes. HUGE for us." Mike Engineering Manager, Runway "I love working with Momentic. Especially after having years of previous experience in QA, it feels like riding a bike, except the bike is a supercharged electric one!" Anna Senior Productivity Engineer, Webflow Code moves faster. Verification has to keep up. Coding agents have made it dramatically faster to build software. The bottleneck is now knowing it works. Verification belongs in the agent loop. Agents need evidence from the app itself to verify that their changes deliver the intended behavior. ## The agentic quality platform. Write the user flows you need to verify. Momentic runs the tests against your app. Reuse successful AI actions and review proposed repairs as the app changes. 1 of 5 Knows how your product works Add terminology, expected behavior, and test guidance to the Knowledge base. AI-assisted steps look up relevant entries as they run. Keep tests working as the UI changes Momentic finds controls again when the UI changes during a run. Permanent healing proposes a test-file repair for you to review. Verify changes with your coding agent Give your coding agent the changed flow. It can use MCP to author a test, check it in a live session, and save the YAML alongside your code. See why a test failed Inspect the failing step, screenshots, and traces. Classify failures as application bugs, test flakiness, or environment issues. Verify before you merge or deploy Run the CLI in your CI job. Use its exit code as a required check before merging or deploying. Verification from your editor to CI. ## Define what matters. Let Momentic verify it. Write steps and assertions in plain-English YAML. Review and version the tests in your repository. 01 / author ### Write tests in plain English Describe a user flow and its expected result in plain English. Keep the steps and assertions in YAML files your team and coding agent can review. [Learn more about Write tests in plain English](/docs/core-concepts/test-format) 02 / run ### Run locally and in CI Use the CLI to check the app you're changing. Run the same tests in CI before the next merge or deploy. [Learn more about Run locally and in CI](/docs/cli-reference/momentic/commands/run) 03 / triage ### Find the root cause See which step failed and inspect its screenshots and traces. AI triage investigates the cause and proposes a test repair for you to review. [Learn more about Find the root cause](/docs/reliability/failure-analysis) 04 / heal ### Auto-heal as your product evolves Momentic finds controls again when the UI changes. Permanent healing proposes test-file edits for review. Apply the diff and rerun to check the result. [Learn more about Auto-heal as your product evolves](/docs/reliability/auto-heal) ## Learns how your product works. Describe your product’s terminology, business rules, and expected behavior in the Knowledge base. Agents use that context to choose actions and check outcomes. ### Knowledge base Give agents the product rules they need to check a flow. ### App graph Maps screens and user flows seen during test runs. ### Review new guidance Review session suggestions before adding them to the Knowledge base. Loved by engineering teams. “Momentic gave us a fast and reliable way to validate Poe.com's AI responses, even when they weren't deterministic.” Momoko F. Head of Product Operations, Quora 30 min daily test execution, down from 7 hours 500+ manual test cases replaced 100% critical tests created in one month [30 min daily test execution, down from 7 hours "Momentic gave us a fast and reliable way to validate Poe.com's AI responses, even when they weren't deterministic." Momoko F. Head of Product Operations, Quora](/customers/quora) [8x increase in release cadence "It's like giving someone your QA checklist and watching them execute it for you!" Sriram S. Engineering Lead, Source Control, Retool](/customers/retool) [80% faster release cycles "With Momentic, we've caught bugs that would have eluded even our most diligent internal tests." Alex C. CTO, GPTZero](/customers/gptzero) [6x faster end-to-end test creation "We've already seen a 30% decrease in production incidents thanks to Momentic's automated testing." Hanna K. Head of QA, CoverGo](/customers/covergo) [85% reduction in production incidents "Momentic gives us reliable end-to-end coverage, so we can focus on features instead of maintaining tests." Alec H. Staff AI Engineer, Mutiny](/customers/mutiny) [Browse all](/customers) ## Ship quality software, on your terms. Test private apps with SSO and custom data policies. Get dedicated onboarding and priority support. Momentic is SOC 2 Type 2 certified. Engineering teams using Momentic. ### SOC 2 Type 2 Independently audited. Compliance reports in the Trust Center. ### Contractual uptime SLA Service scope and uptime commitments are set in your Enterprise agreement. ### SSO & RBAC SAML and OIDC SSO, Admin and Member roles, and audit logs. ### Priority support Priority support and a dedicated account manager for enterprise accounts. [Contact sales](/sales) ## Bugs caught by Momentic Examples of application failures found by Momentic, with the affected flow and its impact. 117,010 before production Detected ON A FEATURE BRANCH ### New-device 2FA prompt skipped At a consumer fintech app, a login routing change bypassed the new-device verification step. A security checkpoint was silently skipped. Detected BEFORE RELEASE ### Page creation flow broken on mobile On mobile, keyboard auto-dismissed when creating a new page, breaking content flow. Silent friction in the core creation flow. Detected IN STAGING ### Driver ETA stuck on 'calculating' A dependency update on a large rideshare app caused the live ETA subscription to silently fail after a ride was booked. Riders never saw an arrival estimate. Detected BEFORE DEPLOY ### Scheduling availability displayed incorrectly Incorrect display and logic in the calendar scheduling view. Wrong availability shown to users. Detected IN CI ### Timer reset when the screen locked At a leading wellness app, an iOS lifecycle change reset the active sleep timer the moment the phone locked. Audio sessions ended mid-playback overnight. Detected 8 MIN BEFORE DEPLOY ### Saved cards dropped at checkout At a top food-delivery marketplace, a payment-form refactor stopped pre-filling saved cards, forcing manual re-entry to pay. Returning users abandoned checkout on mobile. Detected IN A NIGHTLY RUN ### Filters cleared when paginating results At a popular online retail marketplace, moving to page two reset every active category and price filter. Shoppers lost their refined search results. Detected BEFORE MERGE ### Valid promo codes rejected at the final step At a large online travel marketplace, a validation change rejected multi-segment promo codes on the last checkout step. Discounts failed and carts were abandoned. Detected PRE-RELEASE ### Wrong subtitle language on first play At a major streaming platform, a locale-detection bug auto-selected the wrong subtitle track on initial playback. Wrong-language captions at session start. Detected BEFORE RELEASE ### Legacy API issues exposed 12 bugs caught in one day. Exposed legacy API issues that would have shipped undetected. Risked shipping regressions into major release. ## Verify what you ship. Run your first test. Free to start, no credit card. [Try for free](https://app.momentic.ai/signup) [Contact sales](/sales) ## Changelog September 2026 4 August 2026 4 July 2026 4 June 2026 9 May 2026 5 April 2026 4 March 2026 4 February 2026 3 January 2026 3 December 2025 2 [Hosted browsers GA Run your tests on browsers Momentic manages. The knowledge base is generally available too, and classification, triage, and AI test selection dropped their beta labels.](/docs/running-tests/hosted-test-environments)[Mo in private beta Mo runs autonomous QA sessions in the cloud, on web or hosted Android and iOS devices, with your org's MCP servers and secrets attached to the session.](/docs/mo)[AI queries pick their own effort Each v5 locator and assertion query now routes itself to a fast, medium, or extended effort based on how much reasoning it needs, which also sets its credit usage.](/docs/ai/agents#v5-effort-routing)[Caches that survive a rebuild Generated ids are normalized and source-file attributes are left out of the cached selector, so rebuilding your app no longer misses every step.](/docs/reliability/step-cache) [Cached conditional flows An AI action can cache a branch now, so the cookie banner that only shows up half the time replays from cache instead of waking the agent again.](/docs/reliability/step-cache)[Reviewed AI action outcomes A separate reviewer looks at where the app actually ended up before an AI action passes, and hands the step back with its reasoning when your goal did not happen.](/docs/guides/ai-actions/guide)[AI routing for repairs Triage works out what broke each test. It commits the fixes your branch caused, then opens a pull request for every other cause and asks whoever owns it to review.](/docs/reliability/auto-maintenance)[Android without the Android SDK Run Android tests on hosted emulators without Android Studio, the SDK, or adb installed on your machine.](/docs/quickstart/android) [Run assertions Say in plain English what should have been true at some point in a run. Momentic checks it against frames from the run video, so a toast that flashes for a second still counts.](/docs/core-concepts/writing-assertions)[Agent skills Commit what your agents keep getting wrong about your app to .momentic/skills, and the explore, triage, and result-classification agents read it while they run.](/docs/ai/skills)[Installation health checks momentic doctor tells you what is wrong with your setup: CLI and Node versions, sign-in, browsers, project config, and the connection to Momentic. --fix clears out deprecated options.](/docs/cli-reference/momentic/commands/doctor)[Analytics API Pull your finished runs and run groups over REST with an API key. Page through them by cursor and filter by date, status, or platform.](/docs/api-reference/overview) [Test snapshots Capture resolved tests into portable snapshots and replay them in isolation with momentic run --from-snapshot.](/docs/cli-reference/momentic/commands/snapshot)[Explore agent upgrades momentic ai explore now supports deeper planning controls, JSON output, and product bug reports with repro steps.](/docs/ai/explore)[Run visibility upgrades Runs now expose live progress, structured JSON output, and clearer Run Viewer diagnostics for cache status, retries, conditionals, and loops.](/docs/running-tests/results)[AI Action V3 by default The V3 agent is now the default everywhere. It plans the flow up front, caches the resolved steps, and self-heals on failure.](/docs/get-started/upgrade-to-v3) [Triage agent momentic ai triage groups failures into labeled buckets, previews the plan with a dry run, and can quarantine what it cannot fix.](/docs/cli-reference/momentic/commands/ai)[Simplified v2 project format New projects scaffold in the cleaner v2 file format, and momentic upgrade migrates existing projects end to end.](/docs/get-started/migrate-to-simplified-format)[Auto parallelism Pass --parallel auto and Momentic sizes the worker pool from your host's CPU count for faster local and CI runs.](/docs/cli-reference/momentic/commands/run)[Email and SMS at runtime Provision ephemeral inboxes with email.create() and lease numbers from your org pool with sms.lease() right inside a test.](/docs/integrations/email) [Failure recovery v2 The recovery flow can inspect browser state, run steps, retry the failed step, and refresh stale caches, with per-step visibility.](/docs/reliability/failure-recovery)[Classify failures from the CLI momentic ai classify categorizes a run from its ID or URL so you can route each failure category to the right action.](/docs/cli-reference/momentic/commands/ai)[AI Action V3 for Android Android AI actions now plan up front, cache resolved steps, and self-heal, matching the web experience.](/docs/get-started/upgrade-to-v3)[Mobile video recording Screen recordings are captured automatically during iOS and Android test runs and stored with the run attempt.](/docs/running-tests/results) [Mobile MCP server Create tests and modules, run step ranges, and drive emulator sessions for iOS and Android from Claude Code or Cursor.](/docs/cli-reference/momentic-mobile/commands/mcp)[AI actions always on AI actions are enabled by default, so the ai.aiAction switch is no longer needed in momentic.config.yaml.](/docs/core-concepts/agentic-testing)[Setup and teardown for mobile Mobile tests gain dedicated setup and teardown sections so shared preconditions and cleanup live in one place.](/docs/core-concepts/test-format)[iOS testing in beta Author and run Momentic tests against iOS, with modules, AI actions, and remote emulators alongside Android.](/docs/quickstart/ios) [Momentic MCP server Start and terminate browser sessions, splice steps, and run step ranges from your coding agent over a stdio MCP server.](/docs/integrations/mcp-server)[Network mocking steps New request listener, request recording, and mock route step types let agents capture and stub network traffic.](/docs/platforms/web/request-mocking)[Run resource metrics The Run Viewer now charts system and process CPU and memory captured during execution to help debug flaky runs.](/docs/running-tests/performance) [Mobile failure recovery Failure recovery now extends to mobile tests, retrying and adapting around transient issues on iOS and Android.](/docs/reliability/failure-recovery)[Local run viewer momentic results view launches a local run viewer to browse results on your machine without uploading anything.](/docs/cli-reference/momentic/commands/results)[Undo and redo in the mobile editor Step back and forward through edits in the mobile editor while authoring tests.](/docs/changelog) [Memory for mobile agents Mobile locator and assertion calls can reuse past results, configurable in momentic.config.yaml and per test.](/docs/ai/memory)[Upgraded mobile models Refreshed models for the mobile locator and assertion agents improve accuracy on Android and iOS.](/docs/changelog) [View all](/docs/changelog#apr-2026)