# The Retention Stack

> Two categories of software have grown up around the same problem: SaaS companies make money only when customers keep paying. Inline Manual, a digital adoption platform founded in London in 2014, embeds walkthroughs, tooltips and in-app help so users actually learn a product. Vitally, a New York customer success platform founded in 2017 and backed by Andreessen Horowitz and Next47, gives customer success teams the health scores and workflows to spot who is about to leave. Put side by side, they map the modern 'retention stack' - the mostly invisible layer of tooling built to raise net revenue retention and stop churn before it happens.

## Achievements

- Inline Manual reports serving 500+ businesses with interactive walkthroughs, tooltips, surveys and support articles.
- Vitally used by 600+ B2B customer success teams including Zapier, Segment, Productboard, Gorgias, Mixpanel and Intercom.
- Vitally has raised roughly $40M in venture funding across seed, Series A and Series B.

## Latest updates

- **2023-02** — Vitally announced a $30M Series B led by Next47 to expand its customer success platform.

## Links

- Website: https://www.vitally.io/
- LinkedIn: https://www.linkedin.com/company/vitally-io/
- Twitter/X: https://twitter.com/vitally_io

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Profile page: https://yespress.io/retention-stack-fighting-keep-you-from-cancelling
Published by YesPress — https://yespress.io
Last updated: 2026-08-08