Decision Workspace
const-decimal vs finmoney vs moneylib
Side-by-side comparison of Rust crates
40
const-decimal
growingv0.3.0
Integer-backed decimals with constant precision
56
finmoney
experimentalv4.0.1
Precise money library for Rust — currency-aware arithmetic, exchange-grade tick handling, configurable rounding. Built for trading systems.
55
moneylib
experimentalv0.13.2
Library to deal with money in Rust.
Core Metrics
| const-decimal | finmoney | moneylib | |
|---|---|---|---|
| Health Score | 40 | 56 | 55 |
| Total Downloads | 10.0K | 588 | 341 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 0 | 0 | 0 |
| Releases | 5 | 12 | 24 |
| Last Updated | 589d ago | 39d ago | 16d ago |
| Age | 1y 8m | 5m | 3m |
Health Breakdown
const-decimal
Maintenance
4
Quality
15
Community
6
Popularity
5
Documentation
10
finmoney
Maintenance
17
Quality
15
Community
6
Popularity
3
Documentation
15
moneylib
Maintenance
18
Quality
15
Community
6
Popularity
3
Documentation
13
Technical Details
| const-decimal | finmoney | moneylib | |
|---|---|---|---|
| Version | 0.3.0 | 4.0.1 | 0.13.2 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT |
| Dependencies | 11 | 7 | 11 |
| Crate Size | 17KB | 50KB | 52KB |
| Features | 3 | 2 | 6 |
| Yanked % | 0.0% | 8.3% | 0.0% |
| Edition | 2021 | 2024 | 2024 |
| MSRV | — | 1.90 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •finmoney leads with a health score of 56/100, but none of the options score above 80.
- •const-decimal has the most downloads (10.0K), suggesting wider adoption.
- •⚠ const-decimal has not been updated in over a year.
- •const-decimal, moneylib are pre-1.0 — API may change.