For my talk at NSSpain 2020 I’ve prepared a beyond-the-basics Timelane talk.

I think everyone who’s heard about Timelane by now knows what it does for its simplest use case - debugging some Combine based code. However, you can do much, much more with Timelane!

So for my NSSpain 2020 talk I prepared 5 little examples on how to use Timelane beyond the simplest use case.

I’ve pushed all the demo apps I use in my talk to this repository:

Using TimelaneCombine to debug Combine code

This is the most straight-forward use case to debug a Combine-based app.

Debugging RxSwift code with RxTimelane

A timer app written in RxSwift (identical to the Combine version used in the talk into) that talks to Instruments via RxTimelane.

Logging any data to Instruments via TimelaneCore

The demo uses a task queue and tracks the task queue load in Instruments via TimelaneCore:

Additionally, the completed demo includes the smile-to-profile code from the last demo in the talk.

Using Timelane with the Composable Architecture by

This is an (almost) unchanged demo app from which is a ToDo app. Timelane logs in Instruments any user events and also plots ToDo items’ lifetime.

Where to go from here?

If you want to learn more about Timelane, to download it for free, or watch some example videos head to:

Thank you and if you have any questions, feedback, or press inquiries do get in contact at

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