Decision Workspace
factrs vs factrs-proc vs apex-solver
Side-by-side comparison of Rust crates
55
factrs
growingv0.3.0
Factor graph optimization for robotics
56
factrs-proc
growingv0.3.0
Proc-macros for factrs
58
apex-solver
experimentalv1.2.1
High-performance nonlinear least squares optimization with Lie group support for SLAM and bundle adjustment
Core Metrics
| factrs | factrs-proc | apex-solver | |
|---|---|---|---|
| Health Score | 55 | 56 | 58 |
| Total Downloads | 2.6K | 2.2K | 916 |
| 30d Downloads | 83 | 334 | 137 |
| Dependents | 5 | 2 | 0 |
| Releases | 3 | 2 | 7 |
| Last Updated | 7d ago | 7d ago | 20d ago |
| Age | 1y 5m | 1y 2m | 5m |
Health Breakdown
factrs
Maintenance
17
Quality
14
Community
8
Popularity
4
Documentation
12
factrs-proc
Maintenance
17
Quality
16
Community
7
Popularity
4
Documentation
12
apex-solver
Maintenance
19
Quality
14
Community
6
Popularity
4
Documentation
15
Technical Details
| factrs | factrs-proc | apex-solver | |
|---|---|---|---|
| Version | 0.3.0 | 0.3.0 | 1.2.1 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT | MIT | Apache-2.0 |
| Dependencies | 22 | 3 | 24 |
| Crate Size | 120KB | 5KB | 1.8MB |
| Features | 6 | 1 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | 1.87 | 1.84 | 1.85 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •apex-solver leads with a health score of 58/100, but none of the options score above 80.
- •factrs has the most downloads (2.6K), suggesting wider adoption.
- •factrs, factrs-proc are pre-1.0 — API may change.