Crates / Compare / core-foundation vs objc2-core-foundation
Rust crates side by side · data Oct 24, 2026
core-foundation vs objc2-core-foundation
Short answerBy steady daily use, core-foundation is bigger: 1,508,076 real downloads a day against 539,144 for objc2-core-foundation (2.8x). 523 crates depend on core-foundation and 422 on objc2-core-foundation. core-foundation last shipped 17 months ago, objc2-core-foundation 13 months ago.
core-foundation
EstablishedEstablished and steady.
523 crates depend on it; no release in the last 90 days, so its count is all steady use.
Bindings to Core Foundation for macOS
objc2-core-foundation
EstablishedEstablished and gaining.
422 crates depend on it; no release in the last 90 days, so its count is all steady use.
Bindings to the CoreFoundation framework
core-foundationobjc2-core-foundation · 100% = that crate's normal quiet day, so a spike to 300% is triple its usual traffic
Every number, side by side
| Same window, same method | core-foundation | objc2-core-foundation |
|---|---|---|
| Real downloads a day | 1,508,076 | 539,144 |
| Crates that depend on it | 523 | 422 |
| Last release | 0.10.1, 17 months ago | 0.3.2, 13 months ago |
| Trend vs the field | -2% | +11% |
| Release-window share | 0.0% | 0.0% |
| Downloads in the window | 138,249,919 | 49,610,210 |
| All-time downloads | 510,413,744 | 107,085,836 |
| Versions published | 32 | 4 |
| License | MIT OR Apache-2.0 | Zlib OR Apache-2.0 OR MIT |
| MSRV | 1.65 | 1.71 |
| First published | Feb 12, 2015 | May 4, 2024 |
Which to pick
- Downloads tell you what is common, not what fits. Each crate's own description above says what it is for; when the jobs differ, pick by the job.
- When both fit, prefer the one more crates depend on (core-foundation, 523 dependents): more eyes, more answered questions, and you may already have it in your tree.
- Check the release dates against your own pace: core-foundation 17 months ago, objc2-core-foundation 13 months ago.
Also in this space
Method
Real downloads = the median day with no release that day or the day before, from the crates.io API (Jul 27, 2026 to Oct 23, 2026). Raw crates.io counts include CI and bots and run high (why); the method is from our 90-day study.
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