Metrics Platform/Feature availability
Note that, at this time, not all the Metrics Platform features are available for all the supported platforms (Javascript, PHP, Java and Swift).
The following table shows which features are available depending on the platform on which the instrument/experiment is built
| Feature | Javascript | PHP | Java | Swift |
|---|---|---|---|---|
| Client library |  |
|
|
|
| Analytics sampling | |
 |
|
|
| Custom sampling per wiki | |
|
|
|
| Contextual attributes | |
|
|
|
| Instrument class | [1] |
|
|
|
| Experiment enrolment | |
|
|
|
| Experiment enrolment overriding | |
|
|
|
| Base schema version | web 1.3.0 | web 1.2.0 | app 1.2.2 | app 1.1.0 |