Privacy Policy
Last updated November 4th, 2026
Effective November 18th, 2026
Sage Quant, Inc. ("Sage," "we," "us") makes the Sage app and runs sageweight.com. This policy explains what we collect, why, who we share it with, and the choices you have. It applies to everyone who uses Sage, wherever you live. Sage isn't offered in the European Union, the wider European Economic Area, the United Kingdom, Switzerland or China. Our Consumer Health Data Privacy Policy adds detail that some US states require for health data.
The short version
- We collect what you log so Sage can track your medication and progress.
- We never sell your data or use your health data for advertising.
- A few service providers help us run Sage, under contracts that limit what they can do.
- You can export or delete your data anytime in Settings.
1. What we collect
| Type | What it includes | Where it comes from |
|---|---|---|
| Account | Email address, phone number, or the name and email on your Google account | You, or Google if you sign in with it |
| Health data | Medications, doses, schedules, injection sites, weight, height, goal weight, side effects and notes | You |
| Apple Health data | Weight and height, only if you allow it | Apple Health |
| Reminder settings | Dose and weigh-in schedules, notification preferences | You |
| App usage | Features you use and actions like logging a dose or weight, linked to your account ID | The app |
| Crash reports | Device model, iOS and app version, and what went wrong | The app |
| Ad measurement | Whether you installed, opened, signed up and finished onboarding, plus your device's advertising ID if you allow tracking | The app |
| Website usage | Pages visited, browser, device and approximate location from your IP address | sageweight.com, through cookies |
| Support messages | Anything you send us | You |
| App Store analytics | Aggregated statistics like download counts by country, plus usage and crash data if you chose to share it with developers | Apple |
Sage doesn't use location services. Our website analytics estimate an approximate location, like your city or country, from your IP address.
You need an email address, phone number or Google account to create an account. Everything else is optional, but Sage can only track what you log.
2. How we use it
| Purpose | Data | Legal basis |
|---|---|---|
| Run your account and the app | Account, health data, reminder settings | Our agreement with you, and your explicit consent for health data |
| Send the reminders you set up | Reminder settings, medication schedule | Our agreement with you, and your explicit consent |
| Show your progress, projections and milestones | Health data, Apple Health data | Your explicit consent |
| Improve the app | App usage | Your explicit consent |
| Fix crashes | Crash reports | Our legitimate interest in keeping the app working |
| Measure which ads bring people to Sage | Ad measurement data | Our legitimate interest in measuring our ads, and your consent on the tracking prompt for your advertising ID |
| Understand website traffic | Website usage | Our legitimate interest in understanding how people find Sage |
| Answer your questions | Support messages | Our legitimate interest in helping you |
| Keep Sage secure and follow the law | Only what's needed | Legal obligation, and our legitimate interest in preventing fraud and abuse |
Where a country's law lists different grounds, we rely on your consent and our agreement with you. We don't make decisions about you using only automated processing that have legal or similarly significant effects.
3. What we never do
- Sell your personal data
- Use your health data for advertising or share it with ad platforms
- Send your doses, weight, medications, side effects or notes to Meta or Google
- Use Apple Health data for anything except helping you manage your health
4. Who we share it with
Service providers. These companies process data only on our instructions, under contracts that limit their use to running Sage.
| Type of provider | What they do | Where |
|---|---|---|
| Database and hosting | Store your data, including health data | US |
| Sign-in | Handle account login | US |
| Product analytics | Show us how the app is used, linked to your account ID, including health-related actions | US |
| Crash reporting | Help us find and fix crashes | US |
| Push notifications | Deliver your reminders | US |
| Send account and support emails | Usually US |
Independent companies. These companies handle data under their own privacy policies.
| Company | Why | Data |
|---|---|---|
| Meta | Ad measurement | Installs, opens, sign-ups and onboarding completion, never health data. Your advertising ID only if you allow tracking |
| Website analytics | Website usage | |
| Apple | App Store, Apple Health and push notifications | As described in Apple's privacy policy |
Meta is an advertising company, not one of our service providers. When you install Sage, sign up and finish onboarding, the app tells Meta so we can see which ads bring people to Sage. These events contain no health data. If you decline on the iOS tracking prompt, Meta doesn't receive your device's advertising ID, and these events are reported to us only in aggregate.
Other cases. We may disclose data when the law requires it, to protect someone's safety, or if Sage merges with or is acquired by another company. In that case this policy keeps applying to your data, and we'll tell you before anything changes.
De-identified data. We may share aggregated statistics that can't identify anyone, like how many doses are logged on Sage. We don't share de-identified individual records. If that changes, we'll update this policy and tell you before it starts.
Our Discord. What you post in our Discord community is visible to other members and covered by Discord's policies. Please don't share health details there.
5. International transfers
Sage is based in the United States, and our service providers store data in the US. If you live outside the US, including in Canada and Quebec, your data is transferred to and stored in the US, where privacy laws may differ from yours. Our contracts require each provider to protect it as this policy describes. We tell you this before you add health data, and you can email us anytime for details of these safeguards.
6. How long we keep it
| Data | How long |
|---|---|
| Account and health data | Until you delete your account, then removed within 30 days, and from backups within 7 days |
| App usage | Up to 7 years |
| Crash reports | 30 days |
| Website usage | Up to 14 months |
| Support messages | Until your request is resolved, then up to 3 years |
We keep data longer only when the law requires it.
7. Your rights
Wherever you live, you can
- get a copy of your data (Settings > Data > Export as PDF/CSV)
- correct data that's wrong
- delete your account and data (Settings > Profile > Delete account)
- withdraw consent at any time
- object to or limit how we use your data
- stop marketing emails using the link in any email
Withdrawing consent doesn't affect processing that already happened.
| Choice | How to change it |
|---|---|
| Health data | Delete your account in Settings. Sage can't work without it |
| Ad measurement | iPhone Settings > Privacy & Security > Tracking |
| Website analytics | Install Google's opt-out add-on at tools.google.com/dlpage/gaoptout |
To make a request, use Settings or email support@sageweight.com from the address on your account. We may need to confirm it's you. We respond within one month. If we need more time where the law allows, we'll tell you why. If we deny a request, reply with "Appeal" in the subject line and we'll review it within 45 days.
You can also complain to your local data protection authority, or in the US, to your state attorney general. We won't treat you differently for using any of these rights. If your local law gives you more rights than this policy, we honor those too.
8. Security
We encrypt data in transit and at rest, limit access to people who need it, and require confidentiality from them. If a breach affects your data, we'll notify you and regulators as the law requires.
9. Age
Sage is for adults 18 and older. We don't knowingly collect data from anyone under 18. If we learn we have, we delete it.
10. Changes
If we make a material change, we'll tell you in the app or by email before it takes effect. We'll ask for your consent again before using health data in a new way.
11. Contact
Sage Quant, Inc., 1007 N Orange St, 4th Floor #4140, Wilmington, DE 19801, USA. support@sageweight.com
Our privacy officer is our CEO, Nicole Hamilton, reachable at support@sageweight.com.