A
API
Application Programming Interface
The "bridge" that allows two different pieces of software to talk to each other. Think of it as a translator that lets your CRM share data with your email marketing tool without you having to manually copy-paste everything.
Real-world example: When you connect Slack to Asana, the API lets new task assignments automatically post to your team's Slack channel.
C
CRM
Customer Relationship Management
A tool to manage all your company's relationships and interactions with potential and existing customers. It's essentially a smart database that tracks every email, call, meeting, and deal with your contacts.
Real-world example: Instead of tracking leads in a messy spreadsheet, a CRM like HubSpot or Salesforce organizes everything and reminds you when to follow up.
S
SaaS
Software as a Service
Software that is hosted in the cloud and paid for on a subscription basis (usually monthly or annually). Instead of buying and installing software on your computer, you access it through a web browser.
Real-world example: Gmail, Slack, Salesforce, and Netflix are all SaaS products. You don't "buy" them—you subscribe and use them online.
T
TCO
Total Cost of Ownership
The actual price of software, including not just the subscription fee but also implementation costs, training, integrations, add-ons, and the time your team spends learning it.
Real-world example: A CRM might advertise $50/user/month, but once you add phone support ($20), advanced reporting ($30), and a consultant to set it up ($3,000), your real TCO is much higher.
Why it matters: This is the number we focus on in our reviews—the honest, all-in cost, not the marketing price.
Can't Find a Term?
We're constantly adding new definitions. If there's a SaaS term confusing you, let us know and we'll add it to the glossary.