The native macOS alternative to Process Explorer with advanced process monitoring capabilities
Python framework for building and simulating dynamical systems using block diagrams
Stage
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Founded
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Based in
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Pricing model
Freemium
Open source
Pricing
Free version with core features; paid license $34.99 USD for lifetime updates and unlimited devices. Also available on Setapp for $14.99/year or $34.99 lifetime.
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Key features
Per-process CPU and memory history
Process tree visualization with XPC service linking
Real-time disk I/O and memory pressure monitoring
CPU QoS breakdown and memory footprint analysis
Menu bar dashboard for system health tracking
Multi-property and regex search
JavaScript-based advanced filters
Deep process inspection with signature and entitlements info
CSV export for historical data and reporting
30+ solvers including implicit, explicit, and adaptive integrators
Zero-crossing detection and scheduled events for hybrid systems
Hot-swappable blocks and solvers during active simulation
Hierarchical subsystems for modular component design
MIMO support with multiple input and output ports
Browser-based visual editor with PathView
Domain toolboxes for chemical, battery, vehicle, flight, and RF engineering
Custom blocks through subclassing the base Block class
Supports continuous-time, discrete-time, and hybrid systems
FMI integration to wrap Co-Simulation and Model-Exchange FMUs
What makes it different
Visualize complex process hierarchies with automatic XPC service linking
Advanced JavaScript filtering and multi-property regex search
Historical performance tracking with peak and average metrics
Retains information about finished processes for later analysis
Fully private with no data collection or remote transmission
Readable, scriptable alternative to traditional simulation tools with solver depth
Full ecosystem including FastSim Rust engine and standalone C code generation
Minimal runtime dependencies: only numpy, scipy, and matplotlib
Domain-specific toolboxes for chemical, battery, vehicle, flight, and RF engineering
ProcessSpy