Which meditation apps are known for offline access and varied session lengths for travel or commuting?

Here are some meditation apps that are generally well-regarded for offline access and a range of session lengths, which makes them convenient for travel or commuting:

• Headspace — offers downloadable sessions for offline use and many guided meditations ranging from very short “mini” sessions to longer practices.
• Calm — supports offline listening for many tracks and has a wide variety of session lengths, including short breathing exercises, 3–10 minute meditations, and longer sleep stories.
• Insight Timer — has a very large library with many session lengths, from 1–2 minute meditations to longer courses; offline downloads are available in the paid plan.
• Ten Percent Happier — includes downloadable content for offline listening and offers a mix of short and extended guided meditations.
• Simple Habit — designed for busy schedules, with many short sessions and offline access for saved content.

If you want, I can also narrow these down by:

1. best free option,
2. best for beginners, or
3. best for very short commute sessions.