Decision Workspace
loopcell vs poly-once vs qcell
Side-by-side comparison of Rust crates
43
loopcell
growingv1.0.0
cell for multiple routes of access that are only used one-at-a-time in sequence
52
poly-once
growingv1.1.0
A thread-safe cell providing async and sync initialization primitives similar to OnceLock
48
qcell
growingv0.5.5
Statically-checked alternatives to RefCell and RwLock
Core Metrics
| loopcell | poly-once | qcell | |
|---|---|---|---|
| Health Score | 43 | 52 | 48 |
| Total Downloads | 1.3K | 1.1K | 379.5K |
| 30d Downloads | 0 | 0 | 22.3K |
| Dependents | 0 | 0 | 51 |
| Releases | 1 | 2 | 15 |
| Last Updated | 647d ago | 260d ago | 250d ago |
| Age | 1y 9m | 1y 1m | 7y 2m |
Health Breakdown
loopcell
Maintenance
1
Quality
19
Community
6
Popularity
4
Documentation
13
poly-once
Maintenance
8
Quality
21
Community
6
Popularity
4
Documentation
13
qcell
Maintenance
7
Quality
9
Community
11
Popularity
7
Documentation
14
Technical Details
| loopcell | poly-once | qcell | |
|---|---|---|---|
| Version | 1.0.0 | 1.1.0 | 0.5.5 |
| Stable (≥1.0) | ✓ Yes | ✓ Yes | ✗ No |
| License | MPL-2.0 | MIT | MIT/Apache-2.0 |
| Dependencies | 1 | 3 | 9 |
| Crate Size | 12KB | 24KB | 40KB |
| Features | 0 | 3 | 3 |
| Yanked % | 0.0% | 0.0% | 53.3% |
| Edition | 2021 | 2021 | 2018 |
| MSRV | — | — | 1.60.0 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •poly-once leads with a health score of 52/100, but none of the options score above 80.
- •qcell has the most downloads (379.5K), suggesting wider adoption.
- •⚠ loopcell has not been updated in over a year.
- •qcell is pre-1.0 — API may change.