Glossary
Clear definitions for common software terms and acronyms used across Altimateguide. This page is a factual reference: definitions are editorial, while tool rankings elsewhere on the site come from the community.
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A/B Testing
A/B Testing
An experimentation method comparing two versions of a page, feature, or flow to determine which performs better based on measured outcomes.
Related: Analytics tools , PostHog , Amplitude , Mixpanel , Trustmary
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Alternatives page
Related options index
A page type listing nearby options commonly evaluated for similar software jobs.
Related: Alternatives
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ARR
Annual Recurring Revenue
A recurring revenue metric used in SaaS planning and software purchasing decisions.
Related: How-to guides
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Calendar Sync
Calendar Sync
Two-way integration between scheduling tools and calendar platforms like Google Calendar or Outlook that prevents double-bookings and reflects availability in real time.
Related: Scheduling tools , How to choose scheduling tools , Appointlet , Calendly , Doodle , Google Calendar
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Category page
Tool category index
A page type that groups software tools by a shared primary function or problem area.
Related: Categories
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Cohort Analysis
Cohort Analysis
A technique for grouping users by shared characteristics or signup timeframes to compare behavior and retention patterns across different user segments.
Related: Analytics tools , Analytics for early-stage SaaS , Amplitude , Mixpanel , Mixpanel alternatives (2026)
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Comparison page
Side-by-side evaluation format
A page type that presents practical differences between two tools without verdicts or ratings.
Related: Comparisons
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CSAT
Customer Satisfaction
A satisfaction metric that measures user sentiment after a product interaction or support event.
Related: Feedback tools , Delighted , Sprig , Survicate , Trustmary , Survicate alternatives (2026)
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Data Retention
Data Retention
The duration that analytics platforms store historical event data before automatic deletion, varying by pricing tier and compliance requirements.
Related: Analytics tools , Self-hosted vs SaaS analytics , Analytics tools with free plans (2026)
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Editorial inclusion
Independent review process
The review process used to evaluate whether a tool fits current categories and decision pages.
Related: Request inclusion
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Event Tracking
Event Tracking
A method of recording specific user actions like clicks, page views, and form submissions to understand behavior patterns in analytics platforms.
Related: Analytics tools , How to choose analytics tools , Amplitude , Fathom Analytics , Google Analytics 4 , Heap
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Feature Flags
Feature Flags
A software development technique allowing teams to enable or disable features for specific users without deploying new code, used for gradual rollouts and A/B testing.
Related: PostHog , Analytics tools , Amplitude