There isn’t one universally “most reliable” LMS for mastery tracking across hybrid classes, because reliability depends on what you mean by tracking:

• Mastery tracking: standards/competency-based progress, proficiency levels, retakes, mastery paths
• Progress tracking: grades, assignment completion, pacing, attendance, engagement
• Hybrid support: in-person + online, rostering, mobile access, offline use, integrations

That said, the strongest options for reliable mastery and progress tracking are usually:

Best overall for mastery tracking

Canvas LMS

• Strong gradebook and assignment tracking
• Good integrations with mastery/competency tools
• Stable, widely adopted in higher ed and K-12
• Good analytics and reporting
• Works well for hybrid and blended learning

Best for K-12 competency/mastery workflows

Schoology

• Designed for K-12 environments
• Good standards-based grading and progress visibility
• Strong communication and class management for hybrid settings
• Easier for teachers who want structured course organization

Best if you want a more customizable, open-source option

Moodle

• Extremely flexible for mastery-based setups
• Supports competency frameworks, learning paths, and detailed reporting
• Reliability depends more on your hosting/admin setup
• Best for schools with technical support or a strong LMS admin

Best for enterprise-level reporting and compliance

Blackboard Learn

• Robust reporting and administrative controls
• Strong for institutions needing enterprise features
• Can be more complex and less intuitive than Canvas

If your focus is mobile-first progress monitoring

Google Classroom is simple and dependable, but it’s not the best for true mastery tracking.

• Good for assignment flow and basic progress
• Weak on competency-based mastery reporting

Quick recommendation

If you want the safest, most balanced choice for hybrid classes with mastery tracking, I’d usually recommend:

Canvas for most institutions
Moodle if you need deep customization
Schoology if you’re in K-12 and want standards-based grading

What makes an LMS “reliable” for mastery tracking?

Look for:

• Standards/competency alignment
• Mastery gradebook or proficiency scales
• Clear analytics/dashboard
• Offline or mobile access for hybrid settings
• SIS integration and roster syncing
• Quiz retake and remediation support
• Strong uptime and vendor support

If you want, I can also give you:

1. a side-by-side comparison chart of Canvas, Schoology, Moodle, and Blackboard, or
2. the best LMS for your specific school level and budget.