Decision Workspace
approx_eq vs approx_collections vs approx
Side-by-side comparison of Rust crates
45
approx_eq
growingv0.1.8
A macro for comparing equality of two values up to an arbitrary error in the *relative* difference
63
approx_collections
growingv4.1.0
Collections using approximate floating-point comparison
62
approx
growingv0.5.1
Approximate floating point equality comparisons and assertions.
Core Metrics
| approx_eq | approx_collections | approx | |
|---|---|---|---|
| Health Score | 45 | 63 | 62 |
| Total Downloads | 146.6K | 2.6K | 99.1M |
| 30d Downloads | 10.1K | 114 | 7.3M |
| Dependents | 193 | 3 | 17.5K |
| Releases | 8 | 8 | 13 |
| Last Updated | 1972d ago | 14d ago | 50d ago |
| Age | 5y 5m | 8m | 10y 4m |
Health Breakdown
approx_eq
Maintenance
5
Quality
16
Community
9
Popularity
6
Documentation
9
approx_collections
Maintenance
18
Quality
19
Community
10
Popularity
4
Documentation
12
approx
Maintenance
13
Quality
14
Community
16
Popularity
8
Documentation
11
Technical Details
| approx_eq | approx_collections | approx | |
|---|---|---|---|
| Version | 0.1.8 | 4.1.0 | 0.5.1 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | Apache-2.0 |
| Dependencies | 0 | 5 | 2 |
| Crate Size | 3KB | 28KB | 15KB |
| Features | 0 | 2 | 2 |
| Yanked % | 0.0% | 0.0% | 7.7% |
| Edition | 2018 | 2024 | — |
| MSRV | — | 1.88.0 | — |
| Owners | 1 | 2 | 3 |
Links
Quick Verdict
- •approx_collections leads with a health score of 63/100, but none of the options score above 80.
- •approx has the most downloads (99.1M), suggesting wider adoption.
- •approx is depended on by 17.5K crates — strongest ecosystem trust.
- •⚠ approx_eq has not been updated in over a year.
- •approx_eq, approx are pre-1.0 — API may change.