A learning platform earns its place by helping someone do useful work. Start with the work: reading a difficult passage, discussing an idea, practising a skill or receiving feedback. Then ask which tools make that task easier.
A list of features is a poor starting point. You can spend an afternoon comparing dashboards without discovering whether a learner can submit a paragraph, understand a comment and improve the next version. Try that small sequence before committing a class or family to a system.
Follow one piece of work
Create a short document, share it with another person and ask for a specific correction. Make the change, then download both the document and the feedback. Can you open them without returning to the platform? Can you tell which version is the final one?
This test reveals the practical meaning of portability. Work that belongs to a learner should remain usable when an account closes or a provider changes. Keeping a readable copy also makes it easier to discuss progress with another mentor.
Test the arrangements your learners actually have. A process that feels simple on a large screen may become awkward on a shared phone. Try limited bandwidth, keyboard navigation and the accessibility settings someone relies on.
Before choosing, write a short brief. Name the task, the people using the tool, the information it will hold and how you will leave. Compare two options against that brief. Review the choice after a real project, when you have work and feedback to inspect rather than promises to compare.