Decision Workspace
postfix vs squiid-engine vs shuntcalc
Side-by-side comparison of Rust crates
43
postfix
growingv0.1.2
Postfix expression evaluator
45
squiid-engine
growingv2.2.2
Squiid Engine is an RPN mathematical engine written in Rust
40
shuntcalc
experimentalv2.0.0
A smart CLI calculator with variables, REPL, and step-by-step RPN evaluation using the Shunting Yard algorithm
Core Metrics
| postfix | squiid-engine | shuntcalc | |
|---|---|---|---|
| Health Score | 43 | 45 | 40 |
| Total Downloads | 5.6K | 1.9K | 286 |
| 30d Downloads | 7 | 6 | 4 |
| Dependents | 0 | 0 | 0 |
| Releases | 4 | 3 | 1 |
| Last Updated | 2375d ago | 381d ago | 172d ago |
| Age | 6y 6m | 1y | 5m |
Health Breakdown
postfix
Maintenance
9
Quality
16
Community
5
Popularity
4
Documentation
9
squiid-engine
Maintenance
6
Quality
20
Community
5
Popularity
4
Documentation
10
shuntcalc
Maintenance
5
Quality
17
Community
5
Popularity
3
Documentation
10
Technical Details
| postfix | squiid-engine | shuntcalc | |
|---|---|---|---|
| Version | 0.1.2 | 2.2.2 | 2.0.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✓ Yes |
| License | MIT | GPL-3.0 | MIT |
| Dependencies | 0 | 7 | 3 |
| Crate Size | 2KB | 47KB | 16KB |
| Features | 0 | 3 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2018 | 2024 | 2021 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •squiid-engine leads with a health score of 45/100, but none of the options score above 80.
- •postfix has the most downloads (5.6K), suggesting wider adoption.
- •⚠ postfix, squiid-engine have not been updated in over a year.
- •postfix is pre-1.0 — API may change.