Getting started

1. Create an account

You can sign up three ways — pick whichever you trust with your breakfast:

• Continue with Apple — fastest on iPhone, and you can hide your email if you like.
• Continue with Google — one tap if you're already signed into Google.
• Email & password — the classic. We'll send a 6-digit code to verify your address.

Already have an account? Tap Sign in at the bottom instead, or use Forgot password? if past-you was forgetful. Email sign-up asks for an optional name and a password that needs at least 8 characters, upper- and lower-case letters, a number, and a symbol — the app ticks each rule off as you type.

2. The 60-second intro

Brand-new accounts get a short swipe-through intro. It's not filler — it explains the three things that make KetoLens different from every other food tracker. Hit Skip in the top corner any time you've seen enough.

Snap. Analyse. Track.

Point your camera at a plate and the AI identifies every food on it, then estimates the macros in seconds. No barcode hunting, no scrolling a database.

Sneaky carbs, caught

Sauces, dressings, breading, root veg — the carbs that quietly knock you out of ketosis. KetoLens flags the usual suspects so they don't blindside you.

Your ketosis at a glance

The Ketosis Battery scores how likely you are to be in ketosis, 0 to 100, based on what you've eaten. It's guidance, not a blood test — everyone's metabolism is different. There's a whole page on the battery if you want the deep version.

The intro also covers honest estimates (we show net-carb ranges, not made-up exact numbers) and teaching the AI (your corrections make it smarter). Same ideas, more screens.

3. Quick Setup — your carb goal

Before you land in the app, there's a one-screen Quick Setup. Two settings, both editable later in Settings if you change your mind:

Tap Let's Go! to save, or Skip setup to take the defaults (a 25g goal, metric units). Nothing here is permanent.

4. Camera & photo permissions

To snap and upload meals, KetoLens asks for two iOS permissions. You can grant them now or Skip for now and decide later — the app keeps working either way, you'll just be nudged again when you first try to use the camera.

• Camera — so you can photograph a meal and have it analysed on the spot.
• Photo Library — so you can pick a photo you already took. Without it, you can still snap with the camera or log manually.
• Notifications — optional, for meal reminders and "analysis done" alerts. Tap Allow on the system prompt, or turn them on later in Settings.

5. The home tour

The very first time you reach the home screen, a short guided tour highlights each piece in turn — the Ketosis Battery, the Carb Tank, the macro tiles, and the green + button you'll use to log.

Tap Next to step through it, or Skip if you'd rather poke around yourself. You can replay it any time from the ? help button in the top corner.

6. Your home screen, decoded

From top to bottom you'll see the Ketosis Battery (your 0–100 score for today), an Insights teaser, the Carb Tank, and your macro tiles — with the green + button for logging. Each part gets the full treatment on the Ketosis Battery page; this is just the lay of the land.

The four tabs along the bottom — Home, Diary, Stats, and Profile — are where everything else lives.

That's the whole setup. Time to log something — the logging guide covers all three ways to do it.