Today

Today

Demo data on · not medical advice

0 g

Log a glass of water.

Patterns

3 more events to unlock patterns

Edit a log anytime from Today or History.

Vitamins

Checklist

Names and reminder times stay on this phone.

History

Insights

Foods

Not enough data yet

Events

Not enough data yet

Vitamins

Not enough data yet

Compare with others
Event window 2–8 h
hours after eating

Personal log, not medical advice.

Goals

Protein, carbohydrates, calories, fat, fiber, weight, and water. Change a target or turn a goal on or off here. Tracking only — not diet advice. Stored on this phone and included in your export. Never sent to the crowd.

Water

Optional reminder times. Reminders show while BariLogic is open. This browser cannot wake a closed app.

History

Weight, BMI, and the forward line

Crowd

Sample data

Sample crowd rankings. Nothing leaves this phone until you opt in.

Privacy at a glance

You vs. Crowd runs on-device. Opt-in sharing is separate. Local DP · vocabulary foods only · rotating IDs · k≥50 · no notes or exact times.

Profile

Hours before an event to compare foods
4h
Event window
Hours before an event for ingredient patterns
hours before

Your Data

Your logs stay on this phone. BariLogic lives at https://barilogic.pages.dev. Clearing site data or switching devices starts fresh. Moving to the new address is done on this phone, and nothing is sent to a server.

Load demo data (500 people)

Made-up logs from 500 fictional people over 6 months (about 180 days). Crowd charts use aggregates computed in memory — not every raw row on this phone. The device keeps one person’s full log. Not medical advice. Demo logs are never shared or included in export.

Removing demo data restores your gut profile and the sample crowd. Your own meals and check-ins stay.

Gut Profile

Optional. Helps compare with people who have a similar digestive setup. Stored on your device by default — never shared unless you separately opt in below.

A personal label only. Sleeve, Bypass, DS, Loop, Other, or None.

BariLogic is a personal logging tool, not medical advice. Talk to your care team about health questions.

Weight and height

Height is saved as a history, so older BMI numbers stay tied to the height you had then. Weight, height, BMI, and nutrition goals never go to the crowd. They are included when you export your own data.

App works fully offline with the built-in food list. Typed search sends only the food name through this app’s server — never your meals, weight, goals, or profile. A barcode lookup sends only the barcode digits. Meal photos stay on this phone.

U.S. Department of Agriculture, Agricultural Research Service. FoodData Central, 2019. Contains information from Open Food Facts, available under the Open Database License. The server reads FDC_API_KEY if you set one. A key typed below is kept on this phone and is not sent.

A key saved here stays on this phone and is not sent. The server uses its own FDC_API_KEY. Open Food Facts needs no key.

Community sharing

Share anonymous data
Off by default. Only coarse, noisy aggregates — never notes or exact times.
When on, BariLogic may contribute anonymized check-in statistics: known food names only, comfort and delay buckets with local differential privacy noise, day-part (morning/afternoon/evening/night), and a rotating random batch ID (not a stable user ID). Free-text notes and exact timestamps never leave the device. Personal-vs-crowd comparisons use only downloaded aggregates and stay on-device. You can opt out anytime; we also clear the local contribution queue. Server-side deletion of pending rows is documented for when a backend is connected. The app address is https://barilogic.pages.dev. Logs stay on this phone. A move to that address uses a code on this phone only.
Use crowd data when I don't have enough history
On by default. Warnings may cite sample/crowd stats only when your personal confidence is still Learning… Personal results always win when ready.

You vs. the Crowd comparisons are computed on-device from downloaded aggregates — your meal and check-in history does not need to leave the device for comparisons. Nutrition lookups send only the food search term when you tap Look up — never automatic, and never your personal logs.

Notifications

Optional reminders while BariLogic is open. We only ask after you tap this button. A closed app will not be woken.

Status: not enabled

About

BariLogic helps you track what you do, spot trends, and understand daily habits. Track efficiently, understand your patterns. Privacy by design. Add to your home screen for the full app feel. Offline-ready. BariLogic lives at https://barilogic.pages.dev. Your logs stay on this phone. BariLogic is a personal logging tool, not medical advice. Talk to your care team about health questions. Nutrition databases: U.S. Department of Agriculture FoodData Central, and Open Food Facts under the Open Database License.

BariLogic is a personal logging tool, not medical advice. Talk to your care team about health questions.