i Assistence

Independent field guide

Learn more about your iPhone

Plain-language guides that explain what iPhone and iOS features actually do, which devices and software versions support them, and exactly how to turn them on — one clear step at a time.

Browse how-to guides Explore iOS features

We are an independent, educational website. We do not sell products or services, we do not offer paid technical support, and we are not affiliated with, sponsored by, or endorsed by Apple Inc. Everything here is general how-to information. Read the full disclaimer.

What you'll find

Four ways to explore

Start with a category, or jump straight into a step-by-step guide.

New iOS features

Software features that arrive with iOS updates — Focus, widgets, StandBy and more.

See iOS features

iPhone features

Features tied to your hardware — Face ID, the camera, battery tools and Back Tap.

See iPhone features

How-to guides

Consistent, numbered guides that walk you through enabling and using a feature.

Open the guides

Tips & settings

Small settings and lesser-known options that make day-to-day use easier.

Get some tips

How our guides work

Every guide follows the same shape

So once you've read one, you always know where to look next.

  • What it does — the feature explained in plain words.
  • What supports it — device and iOS-version notes where they matter.
  • How to enable it — numbered steps you can follow on your phone.
  • Tips & common problems — get more from it, and fix the usual snags.
Anatomy of a guide

Compatibility first

Each guide opens with spec chips showing the feature, required iOS version, and where to find the setting.

Useful tip

Green boxes highlight ways to get more from a feature.

Common problem

Rose boxes flag typical issues and simple things to check.

Popular guides

Start with a favourite

  1. 01Set up Focus modesSilence the right notifications at the right times.
  2. 02Set up and troubleshoot Face IDUnlock, pay, and fix recognition problems.
  3. 03Emergency SOS & Medical IDPrepare your iPhone for an emergency.
  4. 04Low Power Mode & Battery HealthUnderstand and extend your battery.
  5. 05Use Back Tap shortcutsTrigger actions by tapping the back of your phone.