This Privacy Policy explains how Calxo (“Calxo”, “we”, “us”) collects, uses, and protects your information when you use the Calxo mobile app. Calxo is a personal nutrition and calorie tracker. By using Calxo, you agree to this Policy.
Information we collect
Account information. When you first open Calxo we create an anonymous account so your data can sync. You can secure it by adding an email address and password, or by signing in with Apple or Google — in which case that provider tells us your email address, and (for Apple, if you allow it) your name. We use them only to identify your account; we do not post anything to those accounts.
Profile and health information. To calculate your goals we collect details you enter, such as your name (optional), sex, age, height, weight, body measurements, activity level, dietary preferences, and your weight, calorie, and macro goals.
Food and activity data. We store the meals and foods you log (including calories, macros, and meal photos), your weight history and body measurements, fasting sessions, exercise you log, your streak, your recent food searches, any corrections you’ve saved to a food estimate, and the messages you send to the AI coach.
App preferences. We store the preferences that follow your account so they are the same on a new phone: your reminder settings and times, your fasting plan, and your in-app display options.
Photos. If you scan a meal or add a meal photo, the image is processed to estimate nutrition and may be stored with your log. Progress photos are different: they are stored privately, shown only to you inside the app, and are never sent to our AI provider or analyzed by AI. You can delete any progress photo at any time, and deleting your account removes them all.
Referral program. If you share or redeem a referral code we store your code, which account redeemed it, whether the reward has been earned, and the status of any free month granted to you. Free months are granted as promotional access through RevenueCat. We do not share your referral code with anyone; you choose who to send it to.
Usage and diagnostics. We collect limited app-usage events and crash information to keep the app reliable. We do not use this to build advertising profiles.
Device permissions. With your permission, Calxo uses your camera (to scan meals and take progress photos), photo library (to add meal pictures and progress photos), microphone (to log meals by voice), notifications (to send reminders you choose), and — only when you tap Save on a share card — permission to add that image to your photo library. You can change these in your device settings at any time.
Apple Health (iPhone only). If you connect Apple Health, Calxo reads your daily step count, active energy (calories burned) and body weight with your permission, and — if you also allow it — writes the meals you log (calories, protein, carbs, and fat) into Apple Health so your nutrition lives alongside your other health data. Your step count and active energy stay on your device — they are shown in the app and never sent to us. A weigh-in imported from Apple Health is saved to your Calxo weight history, on our servers, exactly like a weigh-in you type yourself. We never share Apple Health data with advertisers or any other third party. You control reading and writing separately, and can revoke either at any time in iOS Settings › Privacy & Security › Health.
On your device only. Some information stays on your phone and is never sent to us: your appearance and step-goal preferences, the onboarding answers we hold locally until your plan is saved, and — if a photo scan was still running when the app closed — a small marker holding that photo’s location on your device, your account id, and the time, so the scan isn’t silently lost. Removing the app deletes all of it.
How we use your information
We use your information to provide and personalize the app — calculating your calorie and macro targets, analyzing the foods you log, tracking your progress, sending the reminders you enable, and keeping your data backed up and in sync.
We also use limited diagnostic data to fix bugs and improve the app. We do not sell your personal information.
AI processing of your food and messages
When you scan or describe a meal, or chat with the AI coach, the relevant content is sent to our AI provider (OpenAI) to generate the estimate or reply. For the coach, we also include a short profile summary so its advice fits you — your first name, your goal, target weight and weekly pace, your current weight and recent weight trend, your activity level, your calorie and macro targets and your estimated daily maintenance calories, your dietary preference and any challenges you told us about, your current logging streak, what you have logged so far today, the names of foods you logged recently, the coaching tone you chose, and any memories you saved for the coach (things you ask it to remember, which you can view and delete at any time in Customize Coach). If you have saved a correction to a food estimate, we include it so new estimates match it. Voice recordings are sent to OpenAI only to convert them to text, and are not kept afterwards. Results are estimates and may not be exact.
Progress photos are never sent to our AI provider. They are not analyzed, described, or used to generate anything.
Please don’t include sensitive personal information in free-text descriptions or coach messages that you wouldn’t want processed for this purpose.
How your information is shared
We share information only with the service providers that help us run Calxo, under agreements that limit their use of your data: Supabase (cloud database, authentication, and photo storage), OpenAI (food photo and text analysis, voice transcription, and the AI coach), Open Food Facts and USDA FoodData Central (food and barcode lookups), Spoonacular (recipe search and recipe images), and RevenueCat together with the Apple App Store or Google Play (subscriptions).
Food, product, and recipe photos are loaded directly from Open Food Facts and Spoonacular wherever a food is shown — in search results, on a food’s details, and when you browse recipes — so your device contacts those services to fetch the images.
RevenueCat also records when a free month is granted to you through the referral program, so that the free access can be applied to your account.
We may also disclose information if required by law, or to protect the rights, safety, and security of our users and the service. We do not sell your personal information or share it for advertising.
Analytics and error logs
We record limited product-usage events and caught errors in our own database, so we can see how the app is used and fix what breaks. This diagnostic data is first-party: it is not sold, not used for advertising, and not shared with any third-party advertising or analytics network. Health values you log are never included in it.
Data storage and security
Your data is stored on managed cloud infrastructure and is protected by access controls so that each account can only access its own data. While we take reasonable measures to protect your information, no method of transmission or storage is completely secure.
Data retention and deletion
We keep your information for as long as your account exists. You can export your data at any time from Profile → Account & data, and permanently delete your account and its associated data from Profile → Delete account. Deleting your account removes your profile, logs, and photos from our active systems. If you connected Apple Health, the meals Calxo saved there stay in Apple Health after deletion — that copy lives on your device and belongs to you. You can remove it in the Health app under Profile › Apps and Services › Calxo › Delete All Data from Calxo.
One record is deliberately kept after deletion. When a purchase earns someone a free month through the referral program, we store a one-way scrambled version (a hash) of that purchase’s app store transaction number, with no name, no account, and nothing linking it back to you. It exists only so the same subscription cannot be used to claim the reward again by deleting an account and signing up afresh. It cannot be reversed to reveal your purchase or your identity, and it is not part of the personal information we delete with your account.
Your privacy rights
Depending on where you live, you may have rights to access, correct, export, or delete your personal information, and to object to or restrict certain processing. Calxo lets you access, export, and delete your personal data directly in the app; to request a copy of the diagnostic, usage, and AI-request logs we hold, or to make any other request, contact us at the email below.
We do not discriminate against you for exercising these rights.
Children’s privacy
Calxo is not intended for children under 13 (or the minimum age required in your country). We do not knowingly collect information from children under that age. If you believe a child has provided us information, please contact us and we will delete it.
International users
Calxo is operated using cloud services that may store and process data in countries other than your own. By using Calxo you understand your information may be transferred to and processed in those countries.
Changes to this policy
We may update this Policy from time to time. When we make material changes we will update the date above and, where appropriate, notify you in the app.
Contact us
If you have questions about this Policy or your data, contact us at muneebrafishakoor@gmail.com.