For iPhone · Net-carb first · Private by design

Stay in ketosis without the guesswork.

Snap it, scan it, or just say it. Small habits count — scan the meal first. Ketolock shows the net carbs that actually decide your day.

Free to download · 7-day Pro trial · No account required
217keto recipes built in
31restaurant chains
$0to start, no account
Current Ketolock Today screen with its net-carb target, macro totals, meal sections, and Scan Meal button.
Within target3 g of 25 g net carbs
Macros verifiedagainst USDA
Label Check

The label says keto.
Ketolock shows what that means.

A current result screen from inside the app — captured directly from Ketolock.

Current Ketolock barcode result for one meal bar, with editable serving size and an ingredient-review warning for maltitol.
Logging that fits the moment

Three ways to log.
Pick whichever is fastest right now.

Log the way that suits the moment — a photo of the plate, the barcode on the pack, or just say what you ate.

Current itemised meal review for eggs, avocado, and black coffee, with database references, fiber, and electrolyte details.
Snap a photo

It splits the plate, not guesses at it.

Point the camera at your food and Ketolock itemises the meal — each part verified separately, each portion editable with a tap.

Current Ketolock result for a described meal, showing net carbs, macros, database references, and editable item portions.
Just describe it

Describe the whole meal — including what’s in the coffee.

Type it or dictate it: “Two eggs, half an avocado, and coffee with cream.” Ketolock accounts for additions such as cream or sweetener instead of treating every cup of coffee the same.

barcode scans, free,
no daily cap, no trial clock
Scan the barcode

Free and unlimited. Deliberately.

The barcode reads the product label instead of estimating from a photo. Some trackers include barcode access free and others reserve it for Premium; Ketolock keeps it free with no daily cap. Normal anti-abuse safeguards apply.

A tour in seven screens

Every screenshot here is the real app.

No mockups, no renders — these are captures from Ketolock running, honest numbers included.

Current Today screen with the net-carb target dial Current barcode result with one-bar portions and an ingredient-review warning Current itemised meal review with database references, fiber, electrolytes, and editable portions Current Ketolock recipe library Current restaurant guide with lower-carb ordering estimates Current intermittent-fasting timer Current Log screen with sodium, potassium, and magnesium tracking
Why people explore keto

The potential benefits.
The honest health context.

People explore ketogenic and low-carbohydrate eating for weight, metabolic health, steadier energy, and mental clarity. Ketolock helps make the food side easier to see and track — without promising that one eating pattern works for everyone.

🧠

Focus and mental clarity

Ketones provide the brain with an alternative fuel, and researchers continue to study their possible cognitive effects. Some people report steadier focus, but results vary and the evidence does not support promising sharper thinking for everyone. Ketolock helps busy students keep meal choices aligned with their plan without adding another complicated task.

🩺

Blood-sugar and metabolic goals

The American Diabetes Association recognizes low- and very-low-carbohydrate eating as options that may help some adults with A1C, weight, blood pressure, triglycerides, or HDL cholesterol. Diabetes care is individual: major carbohydrate or fasting changes should be planned with a qualified clinician, especially when medication is involved.

⚖️

Weight and appetite goals

Lower-carbohydrate eating may help some people manage appetite and weight. Outcomes depend on food quality, health, medication, sleep, activity, and whether the approach is sustainable — Ketolock records choices, not guarantees results.

📈

See patterns in context

Optional weight, activity, hydration, and fasting records can sit alongside the food log today — glucose and ketone records join them when Bio-Sync ships. That makes trends easier to review while keeping estimates, correlations, and medical conclusions clearly separate.

🔒

Your health information stays yours

No Ketolock account is required. Health information remains on the iPhone, and Apple Health access is optional and controlled through Apple’s permission settings.

Ketolock is a wellness and food-tracking app, not a medical device. It does not diagnose, treat, or prevent any condition. If you have diabetes, take glucose-lowering medication, are pregnant, or manage another health condition, consult a qualified clinician before making significant dietary or fasting changes.

Side by side

Half the price of MyFitnessPal Premium.
With the keto tools built in.

A transparent comparison using current U.S. App Store annual subscription prices.

Ketolock Carb Manager Cronometer Gold MyFitnessPal Premium
Annual price$39.99$39.99$59.99$79.99
Difference vs. Ketolock—Same price$20 more$40 more

U.S. App Store prices checked October 21, 2026. Prices and eligibility can change and may vary by region. Ketolock figures use its standard annual price; the 7-day annual trial is available only to eligible new subscribers.

No bait, no switch

What “free” means here.

The free tier isn’t a demo. It’s a complete keto tracker — and the tools that help you review a label and your daily totals stay free.

Free foreverUnlimited barcode scanning

No daily cap, no trial countdown. Normal anti-abuse safeguards apply.

Free foreverLabel Check

Review disclosed sugars, starches, sugar alcohols, serving sizes, and label details that can change a net-carb estimate.

Free foreverAll core tracking

Net carbs and macros, electrolytes, water, steps, weight, forgiving streaks, Bio-Sync (coming soon) — plus 3 completed cloud meal analyses a day. Supported on-device analysis does not use that allowance.

Simple pricing

A full year for $39.99.
That’s about 77¢ a week.

One subscription, priced honestly. Cancel any time in your iPhone’s settings and keep the free tier forever.

Free
$0
forever
  • Unlimited barcode scanning
  • 3 completed cloud meal analyses a day
  • Supported on-device analysis is unmetered
  • Label Check on everything
  • Net carbs, macros, electrolytes, water, steps, weight
  • Bio-Sync: glucose, GKI & meter logging (coming soon)
  • 3 recipes + 5 restaurant guides
  • No account required
Annual · 7 days free*
Ketolock Pro
$39.99/year
≈ $0.77 a week · or $9.99 monthly
  • Everything in Free
  • Up to 20 completed cloud meal analyses a day
  • Failed requests, retries, chat questions, barcode scans, and supported on-device analyses do not count
  • All 217 recipes + meal plans & grocery lists
  • All 31 restaurant chains
  • The intermittent-fasting timer
Billed through the App Store. *The 7-day trial applies to eligible new annual subscribers; the monthly plan has no free trial. Subscriptions renew until canceled in Apple ID settings.
Private by design

Your food diary is nobody’s business.

There’s no Ketolock account and no ads — your food log and Health data stay on your iPhone. The few records we do keep (like purchase and security data) are pseudonymous, and our Privacy Policy lists exactly what they are.

No accountNo adsNo analytics SDKsNo data brokersOn-device AI optionHealth data stays on your phone
Good things to know

Questions, answered straight.

What exactly are net carbs?
Total carbohydrates minus fibre and sugar alcohols — the portion that meaningfully affects blood glucose for most people. It’s the number keto runs on, so it’s the number Ketolock puts first.
How accurate is the AI?
Honest answer: it depends on the food. Barcodes read the label information in the product record. Photo and text scans are estimates: each food is itemized and checked against the USDA database wherever possible, and you review and adjust portions before anything is logged.
Do I need an account?
No. There’s nothing to sign up for. The app is fully usable the moment it opens, and your log lives on your phone.
Does it work with Apple Health? What about CGMs and ketone meters?
Apple Health works today: Ketolock can read your steps and active energy, plus glucose readings already stored in Apple Health (for example, from a paired CGM) — all kept on your phone. Dedicated ketone-meter logging and the Glucose Ketone Index are part of Bio-Sync, which is in development and not in the app yet. Ketolock does not connect directly to CGMs or meters today.
Is there an Android version?
Not yet — Ketolock is built natively for iPhone first, including its on-device analysis features.
Is Ketolock a medical device?
No. Ketolock is a wellness and food-tracking app. It doesn’t diagnose, treat or prevent any condition, and it’s not a substitute for a clinician. Talk to a doctor before making decisions about your health.

Your next net-carb decision starts with one photo.

Free on the App Store. No account, no ads — your first scan is thirty seconds away.