Use sections for project phases, subtasks for short checklists under one task, and tags for where you can act. One list holds the project. Sections split phases you drag through. Subtasks stay capped at three verbs under a single parent.

If you open Apple Reminders for a side project and cannot tell whether to indent a line or add a new column, this is for you.

What every guide agrees on (table stakes)

Apple Support, Lifehacker, and the Column view tutorials repeat the same mechanics:

  • Sections group tasks inside one list. Tap the three-dot menu, New Section, name it, drag tasks between sections.
  • Column view turns those sections into side-by-side boards. Drag a card from Research into Doing.
  • Subtasks nest under one reminder. Swipe right and Indent, or drag one line onto another.
  • Tags cut across lists. Type #desk and every matching task shows in a Smart List.

All true. All useless when you are staring at Schedule vet visit and cannot decide indent versus new section.

Your takeaway: the tools work. The missing piece is which tool owns which kind of work.

The gap: the LAYER Rule

Competitors demo Kanban boards with five columns and twenty cards. You copy the shape, indent everything, and Today view shows a collapsed novel. The fix is a sort order, not more features.

Name it the LAYER Rule so you run the same check every time a list grows:

  1. List: one project or life outcome gets one list. Kitchen Remodel, not Remodel stuff mixed into Home.
  2. Areas (sections): split parallel phases inside that list. Research, Buy, Install, or Backlog, Active, Done.
  3. Yield (subtasks): when one task has a short checklist under one deadline, nest up to three verbs under the parent. See our iPhone Reminders subtasks guide for the Parent-3 Rule.
  4. Extract (tags): stamp one context tag per active task so Calls and Errands Smart Lists stay honest. Our context lists on iPhone guide caps that at four tags.
  5. Review: weekly, scan sections, not every line. Move one card across a column, then close the app.

Bold takeaway: sections organize phases, subtasks organize steps, tags organize where you act. Pick one layer per line.

Comparison: sections vs subtasks vs tags

Use this table when a task feels fuzzy. If two rows match, pick the higher row first.

  • Sections win when several independent tasks share a phase, like three vendor quotes all sitting in Research before any move to Buy.
  • Subtasks win when steps complete one parent, like three packing verbs under Pack for Austin trip.
  • Tags win when the same action tool shows up across lists, like every phone call tagged #calls whether it lives in Work or Home.

If you need a fourth nested level, the job is too big for subtasks. Promote it to its own list with sections instead of indenting deeper.

15-minute walkthrough: bathroom refresh list

Set a timer. Phone only. You are organizing a real project, not practicing taps.

  1. Minutes 1-2: Create the list. Tap Add List, name it Bathroom Refresh, pick a color, save.
  2. Minutes 3-5: Add three sections. Open the list, tap the three dots, New Section. Create Ideas, Active, and Done.
  3. Minutes 6-9: Park tasks by phase. Under Ideas, add Look at tile samples online and Save paint swatches photo. Under Active, add Call plumber about vanity quote and tag it #calls. Under Done, leave empty for now.
  4. Minutes 10-12: Subtask one Active line only. Add parent Order new mirror under Active. Indent exactly two subtasks: Measure wall width and Pick frame style. Date only the top incomplete subtask.
  5. Minutes 13-15: Column view check. Tap three dots, View as Columns. Drag Look at tile samples from Ideas into Active when you are ready to shop. That drag is the whole section skill.

Close Reminders. You now have phases (sections), one nested checklist (subtasks), and one context tag. No fourth indent level.

Concrete example: Priya's launch weekend

Priya sells stickers online. Her old habit: one giant Work list, indent every step, lose track of what ships this week.

New habit: a Spring Launch list with sections Design, Store, and Ship. Design holds three flat tasks. Store holds Upload product photos with two subtasks: Resize hero image and Write 80-char description. Ship stays empty until Friday.

Thursday night she tags Email wholesale list with #calls even though the list is Spring Launch. Her Calls Smart List shows that line beside pharmacy callbacks from Home. Sections handle project phase. Tags handle the phone in her hand.

Friday morning Column view shows Design empty, Store mid-column, Ship waiting. She drags Upload product photos to Ship after the subtasks check off. No retyping, no new list.

Where Divux fits

Reminders Column view is enough until you want section boards beside calendar blocks and a focus timer. Divux keeps tasks, calendar, and notes on one daily screen. Mirror the three sections as saved filters, drag a twenty-minute block onto Active work, and run the timer without hopping apps.

Download Divux free, build the Bathroom Refresh list in Reminders tonight, and copy the same three sections into Divux if you want timer plus board in one view.

Common mistakes (and the fix)

  • Indenting every line. If tasks do not share one parent deadline, they belong in sections, not under one parent. Unindent and drag to the right column.
  • Building five sections on day one. Start with three. Add a fourth after two weekly reviews, not before the first task ships.
  • Using sections as tags. A section named Calls is not the same as #calls across lists. Sections stay inside one project. Tags cross lists.
  • Skipping Column view. Vertical sections hide drag logic. Turn on View as Columns once a week so phase moves feel obvious.
  • Deleting the Done column. Dragging finished cards into Done before archiving teaches you how fast Active empties. That visual reward beats hiding completed tasks immediately.
  • Mixing storage and execution. Keep idea dumps in Ideas. Only Active lines get dates. Our guide on organizing tasks by project on iPhone covers the one-active-project cap that pairs with this setup.

Bold takeaway: one drag across a column beats ten indented lines you never reopen.

Frequently asked questions

What are sections in Apple Reminders on iPhone?

Sections are labeled groups inside one list. They split a project into phases you can drag through, like Research, Buy, and Install inside a Kitchen Remodel list. Turn on View as Columns to see them as a lightweight Kanban board. Sections organize parallel work inside a single project.

Should I use sections or subtasks in iPhone Reminders?

Use sections when several tasks move through phases together, like a remodel or launch plan. Use subtasks when one task has a short checklist under a single deadline, like pack headphones, print boarding pass, pack toiletries under Pack for trip. Never nest sections inside subtasks.

How many sections should one Reminders list have?

Start with three sections per project list: a backlog or Ideas column, an Active column, and Done or Waiting. Add a fourth only after two weeks of weekly review when one column keeps overflowing. More than five sections early means you are rebuilding a project manager instead of finishing tasks.

Open Reminders, create one project list, add three sections, and drag a single task from Ideas to Active before you close the app. That one finished drag is worth more than a perfect five-column board.