session-replay
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Sprig
Sprig transforms manual survey workflows with a system powered by research agents, enabling enterprise teams to move from question to defensible insight without compromising rigor.
Userpilot
Userpilot helps product and growth teams turn user signals into activation, adoption, retention, and revenue.
Userback
One place for your product team to capture, understand, and act on what users are telling you.
Marker.io
Capture website feedback, bug reports, and visual feedback faster - without endless emails, PDFs, or screenshots.
Pendo
The companies winning the AI era ship software people genuinely love to use. Pendo surfaces where users and agents struggle and then helps you act on it, turning experience gaps into business results.
Contentsquare
The Paris company that watches a billion clicks a day so brands can finally see what their customers were trying to do - and where the website got in the way.
PlaybookUX
PlaybookUX is an all-in-one user experience research platform that helps product, design and research teams recruit participants, run studies, and analyze results in one place. It combines a vetted panel of millions of testers with a full toolkit of qualitative and quantitative methods - unmoderated and moderated testing, card sorting, tree testing, surveys, first-click and five-second tests, preference testing and session replays - and layers AI on top to transcribe, summarize, tag and report on findings. Founded in 2018 by Lindsey Allard and Kristen Giovanniello and headquartered in New York, the company is bootstrapped and grew to roughly $6.5M in revenue and 300+ customers by 2024.
Rollbar
Rollbar is a San Francisco-based developer tools company that builds real-time error monitoring and AI-assisted debugging software. Founded in 2012 by former Lolapps engineers Brian Rue and Cory Virok, Rollbar helps engineering teams catch, group, and resolve software errors across web, mobile, and backend applications.
PostHog
PostHog is an all-in-one, open-source developer platform that bundles product analytics, web analytics, session replay, feature flags, A/B testing, experiments, surveys, error tracking, a customer data platform, and a data warehouse into a single stack engineers can self-host or run in the cloud. Founded in 2020 by James Hawkins and Tim Glaser through Y Combinator, it lets product engineers track usage, ship features, and keep customer data in one place rather than stitching together a dozen SaaS tools. The company reached unicorn status in 2025 with a $75M Series E at a $1.4B valuation.
LogRocket
LogRocket is a Boston-based software company that combines session replay, product analytics, and error tracking into a single platform so product and engineering teams can see exactly what users experienced before something broke. Founded in 2016 by childhood friends Matthew Arbesfeld and Ben Edelstein, it now serves thousands of companies and has layered AI (Galileo) on top to surface user friction automatically.
Luciq
Luciq (formerly Instabug, pronounced LOO-sik) is the San Francisco-based mobile observability company that pivoted in September 2025 from passive bug reporting to what it calls Agentic Mobile Observability - autonomous AI agents that detect, triage, and resolve issues across the mobile app lifecycle. The Y Combinator-backed company powers apps for DoorDash, T-Mobile, Verizon, and Decathlon, with more than 25,000 teams on its SDKs.
Sentry
Sentry is an application monitoring platform built for developers - giving engineering teams real-time visibility into errors, performance bottlenecks, and crashes across web, mobile, and backend stacks. Started as an open-source side project in 2008, it now serves more than four million developers and 100,000+ organizations including Disney, Microsoft, Atlassian, and GitHub.