Decision Workspace
mailrs-ical vs calico vs text2rrule
Side-by-side comparison of Rust crates
55
mailrs-ical
experimentalv1.0.3
RFC 5545 (iCalendar) parser, serializer, and iTIP semantics — zero I/O, hand-rolled, with VTIMEZONE + RRULE support.
47
calico
experimentalv0.5.0
A parser, printer, and data model for iCalendar.
47
text2rrule
experimentalv0.1.2
Convert plain-language descriptions of recurring events into RFC 5545 RRULE strings.
Core Metrics
| mailrs-ical | calico | text2rrule | |
|---|---|---|---|
| Health Score | 55 | 47 | 47 |
| Total Downloads | 65 | 423 | 112 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 0 | 0 | 0 |
| Releases | 4 | 3 | 3 |
| Last Updated | 3d ago | 76d ago | 3d ago |
| Age | 6d | 9m | 7d |
Health Breakdown
mailrs-ical
Maintenance
19
Quality
15
Community
6
Popularity
2
Documentation
13
calico
Maintenance
15
Quality
13
Community
6
Popularity
3
Documentation
10
text2rrule
Maintenance
14
Quality
13
Community
6
Popularity
2
Documentation
12
Technical Details
| mailrs-ical | calico | text2rrule | |
|---|---|---|---|
| Version | 1.0.3 | 0.5.0 | 0.1.2 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | Apache-2.0 OR MIT | MIT | MPL-2.0 |
| Dependencies | 6 | 13 | 5 |
| Crate Size | 47KB | 92KB | 29KB |
| Features | 0 | 1 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2024 |
| MSRV | — | — | 1.85 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •mailrs-ical leads with a health score of 55/100, but none of the options score above 80.
- •calico has the most downloads (423), suggesting wider adoption.
- •calico, text2rrule are pre-1.0 — API may change.