What is SaaS?
Software as a Service. Software you use in a web browser or app and pay for by subscription, while the company that makes it runs and updates it for you.

you sign in · they run and update it
SaaS means software that you…
Write it in your own words in the app.
In real work
Nearly every tool the two-person startup uses is SaaS, from Slack for chat to Vercel for putting its website online, all run and updated by the companies behind them.
In the illustration
Staff keep typing at the terminal while, across town, the provider's crane swaps in an updated module; the meter on the desk clicks over one month.
List every saas subscription we pay for in your workspace: monthly cost, who uses it, and which two tools overlap enough to cancel one.
Try it now
The fastest way to learn a word is to use it. Open this line in the agent you already work in and watch what it does. Change the tool to the one you use.
Go further
01Practice
Make it stick
One term a day, a short quiz, and sentence practice that checks your own words.
02Verify
Prove you know it
Pass the quiz and keep it in a Skills Wallet you can share with anyone who needs proof.
03Career
Find the work that uses it
See which roles lean on this vocabulary, and what they pay in year one.





