
PostHog watches what users do inside a product. Voxco asks what people think across channels - and the useful lesson is knowing when each kind of evidence deserves the microphone.

Mopinion, Lyssna, Dovetail and PostHog all promise to tell you what your customers think. They just disagree, deeply, on how to find out.
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 helps product and growth teams turn user signals into activation, adoption, retention, and revenue.
One place for your product team to capture, understand, and act on what users are telling you.
Capture website feedback, bug reports, and visual feedback faster - without endless emails, PDFs, or screenshots.
InMoment brings the voice of the customer. Contentsquare shows the clicks that voice is reacting to. Their partnership stitches the two halves of a digital experience back together.
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.
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 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 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 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.
James Hawkins is the co-founder and co-CEO of PostHog, the open-source product analytics platform built for engineers. He pivoted five times inside Y Combinator's W20 batch before landing on PostHog, then turned a Hacker News launch and a single tweet into a developer cult following and a $1.4 billion valuation. A former marketing operator and self-described 'very bad developer,' Hawkins runs PostHog on radical transparency, tiny autonomous teams, and a refusal to be boring.
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.
Matthew Arbesfeld is the CEO and co-founder of LogRocket, the Boston-based frontend monitoring and product analytics company he built with his lifelong best friend Ben Edelstein. The two met as one-month-old infants on a parental playdate and have been building software together ever since. A Thiel Fellow who dropped out of MIT in 2015, Arbesfeld first launched a developer deployment tool called AppHub before pivoting to LogRocket, the 'DVR for bugs' that lets engineering teams replay exactly what users did before something broke. LogRocket has raised about $55 million total, monitors billions of user sessions, and in 2026 launched Ask Galileo, an AI layer that answers plain-English questions about user experience.
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 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.