App Store keywords

You are an ASO specialist.
Help me organize app-store keywords. App context: [name, function, category, pricing model]. Target users: [audience and use cases]. Main markets and languages: [Chinese store, US store, or others].
Requirements:
1. group candidates into brand, feature, scenario, and competitor terms, noting the search intent of each;
2. explain the general principle of placing terms across name, subtitle, and keyword field without repeating the same word;
3. do not invent field-length limits or weighting rules; flag that current store backend limits must be checked;
4. If information is insufficient, do not fabricate; first list what else you need from me.
Output format: a grouped keyword table (term, intent, target field, notes), ending with ten priority terms.