Decision Workspace
hpn vs helix-calc vs squiid-engine
Side-by-side comparison of Rust crates
37
hpn
growingv0.8.2
Text-based RPN-style calculator in the HP Voyager tradition.
53
helix-calc
stablev1.4.3
Reverse Polish Notation calculator in a terminal app.
45
squiid-engine
growingv2.2.2
Squiid Engine is an RPN mathematical engine written in Rust
Core Metrics
| hpn | helix-calc | squiid-engine | |
|---|---|---|---|
| Health Score | 37 | 53 | 45 |
| Total Downloads | 23.3K | 4.4K | 1.9K |
| 30d Downloads | 23 | 14 | 6 |
| Dependents | 0 | 0 | 0 |
| Releases | 18 | 11 | 3 |
| Last Updated | 334d ago | 36d ago | 381d ago |
| Age | 4y 2m | 1y | 1y |
Health Breakdown
hpn
Maintenance
8
Quality
11
Community
3
Popularity
5
Documentation
10
helix-calc
Maintenance
17
Quality
17
Community
5
Popularity
4
Documentation
10
squiid-engine
Maintenance
6
Quality
20
Community
5
Popularity
4
Documentation
10
Technical Details
| hpn | helix-calc | squiid-engine | |
|---|---|---|---|
| Version | 0.8.2 | 1.4.3 | 2.2.2 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✓ Yes |
| License | MIT | GPL-3.0-only | GPL-3.0 |
| Dependencies | 4 | 9 | 7 |
| Crate Size | 15KB | 39KB | 47KB |
| Features | 0 | 0 | 3 |
| Yanked % | 5.6% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2024 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •helix-calc leads with a health score of 53/100, but none of the options score above 80.
- •hpn has the most downloads (23.3K), suggesting wider adoption.
- •⚠ squiid-engine has not been updated in over a year.
- •hpn is pre-1.0 — API may change.