CalCalGo Privacy Notice
Effective date: 23 September 2026
Last updated: 28 September 2026
This Privacy Notice explains how CalCalGo (“CalCalGo”, “we”, “us” or “our”) collects, uses, stores, processes, shares and protects personal data when you use the CalCalGo mobile application, website at https://calcalgo.com and related services (together, the “Services”).
CalCalGo is operated from Singapore. We handle personal data in accordance with the Singapore Personal Data Protection Act 2012 (“PDPA”) and other privacy and data-protection laws that apply to particular users or processing activities.
Depending on where you live and how applicable law applies to CalCalGo, you may have additional privacy rights. Nothing in this Privacy Notice is intended to limit rights that cannot lawfully be limited.
This Notice is intended to explain, in clear terms:
- what information CalCalGo processes;
- why we need it;
- how we use and protect it;
- who may process it on our behalf;
- how long it is kept;
- how it may be deleted; and
- the choices and rights available to you.
For privacy and data-protection enquiries, contact:
1. Our privacy approach
CalCalGo is a general wellness calorie, nutrition and weight-management application.
We aim to collect and process only information reasonably necessary to provide, personalise, secure and improve the Services you choose to use.
Where information is optional, we aim to make that clear.
We do not sell personal or sensitive personal data.
We do not use your food and nutrition records, weight information, manually entered activity information, meal photographs or AI-submitted content for advertising or advertising profiling. CalCalGo does not currently display third-party advertising.
If our advertising or marketing practices materially change in the future, we will update this Privacy Notice and applicable app-store disclosures before or when required.
We do not automatically collect fitness information through Google Health Connect, device activity sensors, heart-rate sensors, wearables or connected fitness services in CalCalGo V1.
Some information you provide, such as weight, nutrition, dietary information and manually entered activity information, may be considered sensitive, health-related or consumer health data under applicable laws.
2. Information we collect and why
2.1 Account and contact information
When you create or manage a CalCalGo account, we may process information such as:
- your email address;
- display name;
- sign-in method;
- authentication identifiers; and
- messages or requests you send to us.
We use this information to:
- create and maintain your account;
- authenticate you;
- keep your information associated with the correct account;
- support account recovery and security;
- communicate with you about your account or the Services; and
- respond to support and privacy requests.
If you choose to sign in using Google or another supported sign-in provider, that provider may send us information you have authorised it to share.
2.2 Profile and planning information
Depending on the features you use, you may provide information such as:
- age or date of birth;
- sex;
- height;
- current weight;
- usual activity level;
- weight-management direction or goal;
- target weight;
- preferred timeframe;
- dietary preferences;
- calorie or macronutrient preferences; and
- other planning settings.
We request this information because it may help CalCalGo provide estimates, targets, planning ranges, timelines and other nutrition or weight-management features that are more relevant to the information you provide.
For example, information such as age, sex, height, weight and usual activity level may be used when estimating energy needs and nutrition-plan targets.
The information is used for general wellness and planning purposes. Outputs are estimates and are not guaranteed results or professional advice.
2.3 Food, nutrition and hydration information
When you use CalCalGo to record food, drinks or nutrition information, we may process:
- foods and drinks you log;
- recipes or meal descriptions;
- serving sizes and quantities;
- meal dates and times;
- calorie and macronutrient information;
- nutrition estimates;
- water or hydration entries;
- favourites;
- recent foods;
- corrections;
- meal history;
- targets;
- streaks;
- milestones; and
- related progress information.
We use this information to provide the diary, nutrition summaries, trends, progress information, food history, re-logging and related features that you request.
2.4 Weight and progress information
You may provide weight entries and related progress information.
We use this information to:
- display your weight history;
- show progress over time;
- support planning and target features;
- calculate estimated progress where applicable; and
- provide the charts, milestones and trends you choose to use.
2.5 Manual activity information
You may optionally enter limited activity information, such as:
- a step count; and
- extra calories burned.
This information is provided manually by you.
A manually entered step count is recorded for reference. CalCalGo does not automatically convert your step count into calories burned.
If you manually enter extra calories burned, you may choose whether those calories are included in your available calories for that day.
Your usual activity level used in your nutrition plan is separate from the optional activity information you enter for a particular day.
CalCalGo V1 does not automatically obtain activity information from:
- Google Health Connect;
- device activity sensors;
- heart-rate sensors;
- wearables;
- workout services; or
- other connected fitness platforms.
CalCalGo does not automatically detect workouts or exercise and does not perform background fitness monitoring.
2.6 Meal photos and image input
If you choose to use photo-based food analysis, you may:
- take a meal photograph using your camera; or
- choose an image from your device.
The selected image and information submitted with it are processed for the feature you request, such as identifying possible foods, estimating portions or providing nutrition estimates.
CalCalGo does not require access to unrelated photographs merely because you use a photo-selection feature.
CalCalGo does not retain submitted meal photographs in its own long-term account storage after the requested analysis is completed.
The resulting food descriptions, nutrition estimates or entries that you choose to save may remain as part of your food log.
2.7 AI processing
CalCalGo uses artificial-intelligence services provided by Anthropic, the provider of Claude, to support certain AI-powered features.
When you request an AI-powered feature, the information reasonably needed to perform that request may be transmitted to Anthropic and supporting service infrastructure.
Depending on the feature, this may include:
- a meal image;
- food descriptions;
- recipe information;
- portion information; or
- related text that you submit for analysis.
We seek to limit the information sent to what is reasonably necessary for the requested AI function.
AI-generated results may include food identification, estimated portions, calorie or macronutrient estimates and nutrition-related observations.
AI outputs are estimates and may be inaccurate or incomplete. They are provided for general informational and wellness purposes and are not professional advice.
Anthropic's processing of information is also subject to its applicable privacy, security and commercial terms.
3. Device, technical and website analytics information
CalCalGo may process limited device and technical information reasonably necessary to operate, secure, troubleshoot and maintain the Services.
Depending on the Services you use, this may include:
- device type;
- operating-system version;
- app version;
- language and time zone;
- network or IP information where technically necessary to deliver, secure or troubleshoot a service;
- technical errors, crashes and diagnostic information;
- installation or session identifiers where reasonably necessary for service operation or diagnostics; and
- basic timestamps and service events.
We use technical and diagnostic information to investigate errors, maintain security, and improve the reliability and performance of the Services. It is not used for advertising or advertising profiling.
The CalCalGo website may use privacy-oriented website analytics to understand aggregate website traffic, usage and performance. Website infrastructure may separately process technical information necessary to deliver, secure and protect the website.
If CalCalGo later introduces additional app analytics or tracking that materially changes the information collected or the purposes for which it is used, we will update this Notice and applicable app-store disclosures as required.
4. How we use personal data
We use personal data for purposes reasonably connected with the Services, including to:
- create, authenticate and secure your account;
- provide the features you request;
- personalise nutrition and weight-management planning using information you provide;
- maintain your food, nutrition, hydration, progress and manual activity records;
- provide AI-powered food analysis when you request it;
- calculate and display estimates, targets and trends;
- synchronise eligible account information between your device and CalCalGo's cloud services;
- manage subscriptions, purchases and paid-feature access;
- respond to support, privacy and account requests;
- investigate technical problems and improve the reliability, performance and usability of the Services;
- maintain security and prevent fraud or misuse; and
- comply with applicable legal obligations.
We do not use personal data for purposes that are materially incompatible with the purposes described to you without providing further notice and obtaining consent where required.
5. Data minimisation and user choice
We seek to process only information reasonably necessary for the feature or purpose concerned.
You are not required to use every CalCalGo feature.
For example:
- photo analysis is optional;
- manual activity entry is optional;
- notifications are optional; and
- sharing features are initiated by you.
Where denying optional information or permission only affects a particular feature, unrelated features should remain available where reasonably possible.
6. Local storage and account synchronisation
CalCalGo may store information locally on your device.
Eligible account information may also be synchronised with CalCalGo's cloud services to support account persistence, backup, synchronisation and access across supported sessions or devices.
Information that may be synchronised can include, depending on the features you use:
- profile and planning information;
- food and nutrition records;
- hydration information;
- weight and progress records;
- manually entered activity information;
- favourites; and
- other account information required to provide your selected features.
Removing the CalCalGo app from your device does not necessarily delete information that has already been synchronised to your account.
Use the account-deletion process to request deletion of account-associated information.
7. Who we share information with
We do not sell personal or sensitive personal data.
We may provide information to service providers where reasonably necessary to operate the Services.
These may include providers supporting:
- cloud hosting and databases;
- authentication;
- data storage and synchronisation;
- AI processing, including Anthropic;
- email and service communications;
- subscriptions and app-store transactions;
- website analytics, crash diagnostics and service-performance infrastructure;
- technical infrastructure and security; and
- customer support.
These providers process information for the functions for which they are engaged and subject to their applicable contractual, privacy and legal obligations.
We may also disclose information:
- where required by applicable law or valid legal process;
- where reasonably necessary to protect the security, rights or safety of CalCalGo or its users;
- to professional advisers where reasonably necessary; or
- in connection with a legitimate merger, transfer, reorganisation or sale of the Services, subject to applicable privacy requirements.
8. Sharing initiated by you
CalCalGo may provide optional sharing features.
If you choose to share content, the information you select may be provided to the application, platform or recipient you choose.
You are responsible for reviewing what you share and deciding with whom you share it.
Once information is shared outside CalCalGo, the recipient may save, copy, forward or further disclose it.
Deleting your CalCalGo account does not delete copies that another person or external platform has already received.
9. Camera, photos and notifications
CalCalGo requests permissions only where they are needed for a feature you choose.
Examples may include:
- camera access to take a meal photo;
- photo-selection access to choose an existing image; and
- notification permission to deliver reminders or service messages.
The manual Activity feature does not require CalCalGo to access Health Connect, device fitness sensors or heart-rate information.
You can manage device permissions through your device settings.
10. Notifications and quiet hours
If you enable reminders or notifications, CalCalGo may process your reminder settings and quiet-hours preferences to determine when notifications should normally be sent.
You can change these preferences within the available app settings or through your device notification settings.
Notification delivery may also depend on your device, operating system, battery settings, network conditions and third-party platform services.
Notification preferences are used to provide the requested convenience feature and are not intended for medical monitoring or emergency communication.
11. Subscriptions and transaction information
CalCalGo may offer Premium subscriptions and other optional paid features or in-app purchases through Google Play.
Google Play processes payment details associated with your purchase.
CalCalGo may receive limited transaction, purchase and entitlement information necessary to recognise and manage paid features, such as:
- product information;
- transaction or purchase identifiers;
- subscription status, where applicable;
- renewal or cancellation status, where applicable; and
- entitlement or purchase-status information.
CalCalGo does not receive your full payment-card details from Google Play.
12. International processing
CalCalGo is operated from Singapore.
Some service providers may process information outside Singapore, including in countries where their infrastructure or subprocessors are located.
Where personal data is transferred internationally, we take reasonable steps required by applicable law to ensure an appropriate level of protection.
Where the PDPA applies, this includes taking reasonable steps to ensure that transferred personal data receives a standard of protection comparable to the protection required under Singapore law.
Where another applicable privacy framework requires additional safeguards, contractual protections, consent or other transfer mechanisms, we use those mechanisms where required.
13. How long we keep information
We keep personal data only for as long as reasonably necessary to provide the Services you request and for the purposes described in this Notice.
Retention periods may depend on the type of information, whether your account remains active and whether limited retention is required or permitted for a specific legal, security, fraud-prevention, dispute-resolution or regulatory purpose.
When your CalCalGo account is deleted, account-associated records are removed from CalCalGo's active account systems in accordance with the account-deletion process described below.
We do not keep deleted account data merely because it might be useful in the future.
Limited information may be retained only where reasonably necessary or required for a specific lawful purpose, and only for as long as that purpose applies.
Information may also remain temporarily in protected backups until those backups expire or are overwritten through normal backup-retention processes. Backup copies are not treated as active account data and are not routinely restored for continued use after account deletion.
When information is no longer reasonably necessary, we delete or otherwise handle it in accordance with applicable law.
14. Account and data deletion
You may delete your CalCalGo account directly through the available in-app account-deletion process.
If you no longer have access to the app, you may also submit an account-deletion request through the CalCalGo account-deletion webpage or by contacting:
We may take reasonable steps to verify that you are authorised to request deletion of the account concerned. You will not be required to reinstall CalCalGo merely to submit an external deletion request.
When account deletion is completed, account-associated information is removed from active CalCalGo systems, including where applicable:
- profile and planning information;
- food and nutrition records;
- hydration records;
- weight and progress information;
- manually entered activity information;
- favourites;
- legal-acceptance records; and
- stored AI results or other account information associated with the deleted account.
Limited information may remain only where retention is required or reasonably permitted for a specific legal, security, fraud-prevention, dispute or regulatory purpose, or temporarily in protected backups until normal expiry.
Uninstalling CalCalGo does not itself delete your account.
Deleting your CalCalGo account does not automatically cancel a subscription purchased through Google Play. If you have an active subscription, you should separately cancel it through Google Play to stop future renewals.
15. Your privacy rights
Your privacy rights depend on the laws that apply to you.
Depending on your jurisdiction, you may have rights to:
- ask whether we process your personal data;
- request access to personal data we hold about you;
- request correction of inaccurate or incomplete information;
- request deletion;
- withdraw consent where processing depends on consent;
- object to or restrict certain processing;
- request data portability where applicable;
- receive information about how your data has been used or disclosed;
- appeal certain privacy decisions; and
- complain to an applicable privacy or data-protection authority.
You can submit a privacy request to:
We may need to verify your identity before completing certain requests.
We will respond within the periods required by applicable law.
Withdrawing consent does not affect processing already carried out lawfully.
Where information is necessary for a feature you request, withdrawing consent or requesting deletion may mean that the feature can no longer operate.
16. Applicable privacy laws and regulators
CalCalGo is operated from Singapore and the Singapore PDPA is an important privacy framework governing our handling of personal data.
Depending on where you live and how applicable law applies to CalCalGo, you may have additional privacy rights or the right to contact a privacy or data-protection authority in your jurisdiction.
You may contact us first regarding a privacy concern at:
Where the PDPA applies, you may also contact Singapore's Personal Data Protection Commission (“PDPC”). Where another applicable law gives you the right to contact a regulator or supervisory authority, you may exercise that right directly.
You do not need to give up any regulatory or legal right by contacting CalCalGo first.
17. Security
We use reasonable administrative, technical and organisational safeguards appropriate to the nature of the information processed.
These may include measures such as:
- secure transmission;
- authentication;
- access controls;
- account-level data separation; and
- measures designed to reduce unauthorised access.
No internet transmission, device or storage system can be guaranteed to be completely secure.
You are responsible for taking reasonable steps to protect your device and account credentials.
If a personal-data breach occurs, we assess the incident and make notifications required by applicable law.
18. Users aged 18 and above
CalCalGo is intended only for adults aged 18 and above.
Persons under 18 must not create an account or use the Services.
We do not knowingly seek to collect personal data from persons under 18.
If we reasonably determine that an account is being used by someone under 18, we may suspend or delete the account and associated personal data, subject to applicable legal requirements.
If you believe an underage person is using CalCalGo, contact:
19. Changes to this Privacy Notice
We may update this Privacy Notice to reflect changes to:
- CalCalGo's features;
- our data-processing practices;
- service providers;
- applicable law; or
- privacy requirements.
We will update the “Last updated” date above.
Where a change materially affects how personal data is used and applicable law requires additional notice or consent, we will provide that notice or request that consent.
20. Contact
For privacy, personal-data, account-deletion and data-protection enquiries:
For general product or technical support:
Website:
https://calcalgo.com