Log what you ate
Search, scan a barcode, or fire a quick entry. Net and total carbs computed side by side, with sugar-alcohol math that doesn’t pretend maltitol is free. Water too. Takes seconds, works offline.
Metabolic health tracking · keto · low-carb · GLP-1 · glucose-curious
The label said 2g net carbs. Your meter said otherwise.
metabomap pairs every meal you log with your own blood glucose and ketone readings — something no mainstream tracker does. Not what the package promises. Not what an app’s database guesses. What your body actually did — meal by meal, reading by reading.
$39 for year one — first 250 paid accounts or through January 31, 2027, whichever comes first — then renews at the regular $49. Payments aren’t live yet; leaving your email puts you in line for a founding slot. No card, no charge.
“2g net carb” snack bar Eggs, avocado, black coffee
How it works
Log the meal. Take the reading. Believe the curve.
Three steps, about a minute a day. No wearables required, no subscription required, no faith in packaging required.
Enter your readings
Type in your blood glucose and ketone readings from any meter — about ten seconds. Pair them and metabomap computes your GKI automatically, with zone bands so the number means something at a glance.
See what your body said
Charts line your meals up against your measured response. The bread that reads steady stays in rotation. The bar that doesn’t, doesn’t. You stop guessing and start keeping receipts.
The full kit
Everything a serious low-carb day needs. In one log.
Built keto-first, useful anywhere metabolic health matters — including if you’re on a GLP-1 and keeping an eye on protein. Every feature below is in the free tier, forever, with no ads.
Logging at the speed of eating
Fast search, barcode scanning, quick entries, water tracking. Built for the fact you’ll do this 1,400 times a year — logging you’ll actually still be doing in March.
Net and total carbs, together
Both numbers, every food, always. Sugar alcohols handled per-sweetener — erythritol isn’t maltitol, and our math knows it.
Glucose, ketones, GKI
Log readings, pair them, and get your Glucose Ketone Index with zone bands and charts. The metric serious keto runs on, computed natively.
Fasting that keeps itself
Fasting timers and protocols with daily eating windows and automatic start and end, plus 24–72h extended fasts when that’s your practice. Your fast tracks itself while you live your life.
Recipes with real numbers
Build a recipe and per-serving nutrition computes itself from USDA-backed data. No copying labels, no hand-waving portions.
Plan the week, shop once
A weekly meal planner that writes your grocery list. Check items off in the store — it works with zero bars of signal.
Movement in the picture
Exercise and step logging, plus Fitbit sync, so your energy-out lives next to your energy-in.
A challenge worth showing up for
Weekly community challenges and forums. Real people, disclosed accounts, no engagement theater.
Bring your own AI
The first nutrition tracker your own AI assistant can use
metabomap ships an MCP server with 13 tools, which means the AI assistant you already pay for — Claude, for instance — can work your food diary directly. Tell it what you ate and it logs the meal. Ask what your week looked like and it queries your diary. Ask for a dinner idea that fits your macros and it drafts a recipe grounded in real USDA-backed data, saved straight into your account.
Your AI, your subscription, your data — we don’t meter it, quota it, or charge for it. API keys and the MCP server are free.
MCP server 13 tools Free API keys Revoke anytime
“Log two eggs, half an avocado, and black coffee for breakfast”
Logged, with net and total carbs computed, before your coffee’s cold.
“How did my net carbs trend this week?”
Your assistant reads your diary and answers with your actual numbers. “What did I eat on Tuesday?” works too — because it can actually look.
“Draft me a 6g-net-carb dinner from what I usually eat”
A real recipe, per-serving nutrition auto-computed, sitting in your recipe list.
Why the meter
Labels make claims. Meters file reports.
The low-carb aisle runs on creative arithmetic, and a food database — anyone’s, including ours — can only tell you what a food contains. It cannot tell you what that food does to you. Only pairing the log with your own readings can. That pairing is the whole product. The label proposes; your meter disposes.
The sugar-alcohol shell game
“2g net carbs” often means every gram of sugar alcohol was subtracted — including maltitol, which carries roughly half the glycemic punch of sugar. The label rounds it away. A meter doesn’t round.
Serving-size sleight of hand
That per-serving number assumes you stopped at half a flatbread. The math on the package is negotiable. The number on your meter is not.
Your n of 1
Two people eat the same food and their glucose writes two different stories. Population averages can’t settle what a food does to you. Thirty seconds with a meter can — and metabomap keeps the record.
Our data
We’ll publish our error rate. Find another tracker that dares.
The dirty secret of this category is junk data — crowdsourced entries where the fiber is wrong, the sugar alcohols are missing, and your net-carb math quietly breaks. We took the opposite bet: a USDA-backed spine, provenance on every food row, user-created foods kept out of global search until verified, and a standing commitment to audit our own numbers and publish the results — errors included — in public. When we use AI to produce anything, it’s labeled. Accuracy over inventory, in writing, where you can check it.
Sourced, not scraped
USDA data as the spine. Every food carries its provenance, and search ranks trusted rows first.
Audited in public
Standing commitment: audit our data against real labels and publish the results — including the misses — with a corrections log. We’d rather be measurably imperfect than unverifiably confident.
Honest AI, disclosed AI
AI-generated content is labeled as AI-generated. Humans own the review. Getting caught pretending is fatal in a trust business, so we don’t pretend.
No ads. Not “fewer ads.”
No ads on any tier, and no ad-tech tracking pixels behind your login. The business model is boring on purpose: some people pay $49 a year, and that's it.
Who it’s for
Three kinds of people. One instinct: stop guessing, start measuring.
Different starting points, same move — log the meal, log the reading, see what happened.
Keto and low-carb, for real
Net and total carbs both, GKI zones, fasting windows, recipes that don’t wreck the math. Built by people who know why maltitol is a betrayal.
On a GLP-1
When appetite shrinks, protein and micronutrients are the first things to quietly slip. metabomap keeps protein in view on every log, and Premium scores ten micronutrients against FDA Daily Values — electrolytes first, on a daily %DV dashboard — so smaller meals can still be complete ones, and you can see gaps while they’re still small.
Glucose-curious
You don’t need a diagnosis to want the data. Log meals against your own readings, watch your curves, and learn your personal terrain — which foods your body shrugs at, and which ones it doesn’t.
For the paywall refugees
Your last tracker moved your features behind a paywall. Here’s ours, in writing.
MyFitnessPal pushed more of its free features behind the paywall this May. Other carb trackers are racking up billing complaints. You don’t need our commentary — you were there. So here’s our deal, stated plainly: the complete daily practice — logging, barcode, net and total carbs, glucose, ketones, GKI, fasting, recipes, meal planning, grocery list, community — is free forever, with no ads and no card on file. Premium is one honest price, $49 a year, for the deep micronutrient layer. Cancel online in two clicks, with a 30-day money-back guarantee if you do pay. We’d rather earn twelve months at a time than trap anyone for one.
Free means complete
Barcode scanning, net carbs, glucose and ketone logging, GKI, fasting, recipes, meal plans, grocery lists, community — all in the free tier, permanently. The free tier is the trial. There is no other trial.
One price, no ladder
Premium is $49 a year. There is no Premium+, no add-on packs, no feature that quietly migrates upmarket next spring.
Cancel in two clicks
Online, from settings, instantly. If software makes you talk to someone to leave, it’s telling you what it thinks of you.
Lock $39 before it's $49
Payments open soon — so early actually pays. The first 250 paid accounts — or anyone in through January 31, 2027, whichever comes first — get Premium's first year for $39 instead of $49, renewing at the regular price. Leave your email to get in line for a founding slot: no card, no charge, no commitment until you decide — and the 30-day money-back guarantee applies when you do. Meanwhile, the free tier is open right now.
Fair questions
Is metabomap really free?
The free tier is the complete daily practice, free forever: unlimited logging with search and barcode scanning, net and total carbs, blood glucose and ketone tracking with GKI, fasting timers, recipes, the weekly meal planner and grocery list, water, exercise, Fitbit sync, community, articles, and API/MCP access — all in an app that installs to your home screen and keeps logging offline. No ads on any tier, no card required, and we don’t do paywall creep — moving free features behind a paywall is the industry habit we exist in opposition to.
Do I need a glucose or ketone meter to use metabomap?
No. Everything on the food side — logging, barcode, both carb counts, recipes, meal planning, fasting, community — works fully without one. The meter is where it gets interesting: paired glucose and ketone readings unlock GKI zones and the food-versus-curve picture nothing else gives you. If you own a blood meter, you’re two ten-second entries away from it. If you don’t, metabomap is still a complete tracker while you decide.
Does metabomap sync with my glucose or ketone meter?
Not today — and we’d rather tell you that plainly than imply a sync that doesn’t exist. You enter readings from any blood meter by hand; it takes about ten seconds, and pairing a reading with a meal is one tap. We only advertise what’s actually shipped.
What does Premium add?
Depth. Premium ($49/year, annual only — under $1 a week) unlocks the micronutrient layer: ten nutrients scored against FDA Daily Values with electrolytes first, a daily %DV dashboard view, and micronutrient detail on every food, day, and recipe. Low-carb eating is famously an electrolyte puzzle; Premium is the instrument panel for it.
What’s the founding offer?
The first 250 paid accounts — or anyone in through January 31, 2027, whichever comes first — pay $39 for their first year, renewing at the regular $49. Payments aren’t live yet, so joining the founding list costs an email address, not a card number, and puts you in line for a founding slot when checkout opens.
I’m on a GLP-1 medication. Is this for me?
Very much, and for a specific reason: when appetite drops, protein intake and micronutrients tend to quietly slip — it’s one of the most commonly reported struggles in GLP-1 communities. metabomap keeps protein in view on every log, and Premium scores ten micronutrients against FDA Daily Values, electrolytes first, on a daily %DV dashboard — so you can see what smaller meals are and aren’t delivering, and adjust while gaps are still small. It’s a tracking tool, not medical advice; your prescriber owns that lane.
How is this different from MyFitnessPal, Carb Manager, or Cronometer?
One structural difference: no mainstream tracker pairs your food log with your own glucose and ketone response — metabomap is built around that pairing. Beyond the moat: net and total carbs computed together with honest sugar-alcohol math, GKI as a first-class metric, a free tier that’s actually complete, no ads, easy online cancellation, and a public Our Data page committed to publishing our label-audit results — error rate included. We compete on measurement, not on inventory boasts.
What’s this about my AI assistant using it?
metabomap ships an MCP server with 13 tools plus free API keys, which makes it the first nutrition tracker your own AI assistant can use. Connect Claude (or any MCP-capable assistant) and it can log meals you describe, query your diary, and draft recipes grounded in USDA-backed data — running on the AI subscription you already have, at no charge from us, with keys you can revoke anytime.
Is metabomap medical advice?
No. metabomap is a wellness tool for seeing, tracking, and understanding your own logged data. It doesn’t diagnose, treat, or prevent anything, and it’s not a substitute for your clinician — bring your charts to them; that’s what the charts are for.
Stop arguing with labels. Start keeping receipts.
The complete daily log is free forever — no ads, no card, no countdown. Your meter has been telling the truth all along; give it somewhere to file the reports.