For iPhone · Ketosis first · Private by design

Stay locked in ketosis.

Snap it, scan it, or just say it. Ketolock answers the only question that matters — does this keep you in, or knock you out?

Download on the App Store Watch it catch a lie ↓
Free to download · 7-day Pro trial · No account required
217keto recipes built in
31restaurant chains
$0to start, no account
Ketolock Today screen: a ketosis dial reading 5 grams of a 25 gram net-carb limit, with protein, fat and calorie totals below.
In Ketosis5 g of 25 g net carbs
Macros verifiedagainst USDA
The Deceptive-Carb Radar

The snack said keto.
The ingredients said otherwise.

A true story from inside the app — one barcode scan, unedited.

Ketolock barcode result showing 20 grams of net carbs, a red Kicks You Out verdict, and a radar warning for hidden high-glycemic corn starch.
1

A “keto-friendly” snack goes under the scanner.

High-protein branding, low-carb aisle, loyal keto following. One scan of the barcode — free and unlimited in Ketolock — reads the actual label.

2

The label tells a different story.

Twenty grams of net carbs per serving. And in the ingredient list, the radar finds corn starch — a high-glycemic starch that can spike glucose while the front of the bag whispers “keto.”

3

Ketolock calls it.

No euphemism, no maybe. The verdict is printed on the result.

✕  Kicks You Out
4

The Radar runs on everything you log.

Maltitol. Hidden starches. “Sugar-free” syrups that aren’t. Catching them is the reason this app exists — so it’s not a paid extra.

✓  Free for everyone, forever
Logging that fits the moment

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

Every estimate tells you how confident it is and why. When a food matched a nutrition database, it says so. When it’s a guess, it says that too.

Itemised meal review splitting a keto breakfast into eggs, butter, avocado and bacon, each verified against USDA.
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 correctable with a tap.

Describe a Meal chat replying with per-item net carbs, fat and protein for eggs, avocado, bacon and coffee.
Just describe it

“Two eggs, half an avocado, black coffee.”

Type it or dictate it. On iPhones with Apple Intelligence this runs entirely on your device — nothing leaves your phone, no limit, no cost.

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

Free and unlimited. Deliberately.

The barcode reads the real label, so it’s the most accurate route there is — and the big trackers charge for it. Ketolock never will.

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.

Today screen with the ketosis dial Barcode scan with the radar verdict Itemised meal review Keto recipe library Restaurant keto guide Intermittent fasting timer Weight and streak progress
Why it wins

Built for keto. Not bolted on.

Most trackers count calories and treat keto as a setting. Ketolock is built the other way round.

🥑

Net carbs first, everything else second

Total carbs minus fibre and sugar alcohols, tracked against your own limit on a dial you can read across the room. Calories, protein and fat are there — as the supporting cast.

🎯

Honest AI, with receipts

“AI confidence 73% · 4 of 5 foods matched a nutrition database.” Ketolock shows its working on every scan, so you always know how much to trust a number.

🔒

No account. Ever.

Fully usable from first launch. Your food log lives on your phone — nothing to sign up for, nothing to breach.

🧠

On-device Apple Intelligence

Describe-a-Meal runs on the iPhone itself where supported. Choose “On-device only” and photos never go anywhere either.

⚡️

Electrolytes, tracked

Sodium, potassium and magnesium from labelled foods and one-tap adds — the keto-flu trio most trackers ignore entirely.

🍽️

Eat out without the guesswork

A built-in, searchable guide to 31 restaurant chains with keto-viable orders and their real numbers — not a blog post.

Side by side

Half the price. None of the hedging.

The things that matter on keto, and who actually gives them to you.

Ketolock Carb Manager MyFitnessPal
Yearly price$19.99$39.99$79.99
Barcode scanning freeYesPremiumPremium
Net carbs as the headlineYesYesCalories first
Flags deceptive ingredientsFree for all——
Shows AI confidenceEvery scan——
Works with no accountYesSign-up requiredSign-up required
On-device AI optionYes——

Competitor pricing and features as published on their own US App Store listings and websites, July 2026. They’re good apps with far longer track records — we’re newer, cheaper, and more honest about what a number is worth.

No bait, no switch

What “free” means here.

The free tier isn’t a demo. It’s a complete keto tracker — and the parts that keep you safe are free on principle.

Free foreverUnlimited barcode scanning

No daily cap, no trial countdown. The most accurate way to log stays free because it should be.

Free foreverThe Deceptive-Carb Radar

The ingredient warnings that keep you in ketosis run on every food, for every user.

Free foreverAll core tracking

Net carbs and macros, electrolytes, water, steps, weight, forgiving streaks, Bio-Sync — plus 3 AI scans a day.

Simple pricing

Less than a coffee.
For the whole year.

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 AI photo or chat scans a day
  • Deceptive-Carb Radar on everything
  • Net carbs, macros, electrolytes, water, steps, weight
  • Bio-Sync: glucose, GKI & meter logging
  • 3 recipes + 5 restaurant guides
  • No account required
7 days free
Ketolock Pro
$19.99/year
≈ $0.38 a week · or $3.99 monthly
  • Everything in Free
  • Unlimited AI photo & chat scanning
  • All 217 recipes + meal plans & grocery lists
  • All 31 restaurant chains
  • The intermittent-fasting timer
Billed through the App Store. Try Pro free for 7 days — cancel before it ends and pay nothing.
Private by design

Your food diary is nobody’s business.

Ketolock’s App Store privacy label reads “Data Not Linked to You” — because there’s no account to link anything to.

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, and Ketolock tells you instead of hiding it. Barcodes read the real label. Photo and text scans are estimates verified against the USDA database wherever possible — and every result shows its confidence and how many items matched, so you decide how much to trust it. Portions are always one tap to correct.
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, CGMs and ketone meters?
Yes. Apple Health can share steps, active energy and glucose (from a paired CGM). Blood-ketone readings from any meter power your Glucose Ketone Index, and breath-acetone readings from any breath device are tracked as their own honest trend — never fake-converted between units.
Is there an Android version?
Not yet — Ketolock is built natively for iPhone first, including its on-device Apple Intelligence 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 first day in ketosis starts with one photo.

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

Download on the App Store Questions? Say hi →