Free up storage on your phone safely

Help me free up phone storage safely.

Phone: [iPhone / Android]
Storage message: [paste if any]
Photos backed up: [yes / no / not sure]
What I can delete: [apps, downloads, old podcasts]

Ask me up to 3 short questions first if anything important is missing. Wait for my answers.

Then:
1. Safe clear-out order.
2. What to back up before deleting photos.
3. Settings areas to check in general terms.
4. How to confirm space freed.

Only use what I've told you, leave blanks for anything I haven't given, and don't invent facts, steps or official URLs you're not sure of. UK English.

Stay in this ChatGPT chat. Do not turn on apps or connectors, and do not use memory from another chat.