The short answer
- Every App Store listing has an App Privacy section that says what data an app collects and how it's used. It's the quickest way to compare GLP-1 trackers on privacy.
- Of the eleven apps we checked, Shotsy, GlucoPal, Glapp, Medisafe and JabKeeper declare no data used to track you. MeAgain, Glowise, DreamMe, Dose AI, Pep and GLP AI each declare at least one type.
- "Not linked to you" still means the data is collected. Only a label of Data Not Collected means the developer receives nothing.
- Cloud sync is a trade-off. It gives you backup and multiple devices, but your diary is stored off your phone. Local-only apps keep everything on the device but can't restore a lost phone.
A GLP-1 tracker holds some of your most personal information: the medicine you're prescribed, your dose, your weight and how your body is reacting to treatment. In the UK, information about your health is special category data under data protection law. Yet most people choose a tracker by its screenshots and star rating, not by what happens to that data.
This guide shows how to read the App Store's privacy labels and compares the labels of popular GLP-1 tracker apps. It also explains the choice between cloud-synced and on-device apps. We make JabKeeper, which takes the strictest approach. As you'll see, that comes with its own trade-offs.
How to read an App Store privacy label
Scroll down any App Store listing to App Privacy. Apple asks developers to sort the data they collect into three groups, or to declare that they collect none:
| Label | What it means |
|---|---|
| Data Used to Track You | Data that may be linked with information from other companies' apps and websites for targeted advertising or ad measurement, or shared with data brokers. |
| Data Linked to You | Data connected to your identity, for example through an account, your device or other details. |
| Data Not Linked to You | Data the developer collects but says isn't connected to your identity, such as de-identified usage or crash data. |
| Data Not Collected | The developer says it doesn't collect any data from the app. |
Within each group, data is sorted into types such as Health & Fitness, Contact Info, Identifiers, Usage Data and Diagnostics. Tap See Details to see the purposes, such as app functionality, analytics or product personalisation.
Privacy labels of popular GLP-1 trackers
| App | Data Used to Track You | Data Linked to You | Data Not Linked to You |
|---|---|---|---|
| JabKeeper | Data Not Collected | ||
| GlucoPal | None | None | Health & Fitness, Usage Data, Diagnostics |
| Shotsy | None | None | Health & Fitness, User Content, Usage Data, Diagnostics |
| Medisafe | None | None | Health & Fitness, Contact Info, User Content, Identifiers, Usage Data, Diagnostics |
| Glapp | None | Health & Fitness, Contact Info, Identifiers, Usage Data | Diagnostics |
| Pep | Identifiers | User Content | Contact Info, Identifiers, Usage Data |
| GLP AI | Identifiers | Contact Info, Identifiers | Health & Fitness, User Content, Identifiers, Usage Data, Diagnostics |
| Dose AI | Usage Data | Identifiers | Health & Fitness, Contact Info, Usage Data, Sensitive Info |
| DreamMe | Usage Data | Health & Fitness, Contact Info, User Content, Identifiers | Usage Data, Diagnostics |
| Glowise | Identifiers | Health & Fitness, Purchases, Contact Info, User Content, Identifiers, Usage Data, Diagnostics | Contact Info |
| MeAgain | Identifiers, Usage Data | Health & Fitness, Purchases, Contact Info, User Content, Search History, Usage Data, Sensitive Info, Diagnostics | Identifiers |
The apps are ordered roughly from the fewest to the most declared data types. A longer label isn't automatically worse. Apps with accounts, cloud sync, AI features or community areas need more data to work, and some developers declare more thoroughly than others. Still, the label is the best like-for-like comparison available.
What the labels tell us
- Tracking is common but not universal. Six of the eleven apps declare at least one data type used to track you. Five declare none.
- Health & Fitness data is usually collected. It appears as linked to you for Glapp, DreamMe, Glowise and MeAgain. For GlucoPal, Shotsy, Medisafe, GLP AI and Dose AI, it appears as collected but not linked to you.
- "Data Not Collected" is rare. JabKeeper is the only app in our table with that label, though a few smaller trackers on the App Store declare it too.
Labels don't tell the whole story, so read the privacy policy of any app you're considering. For example, Shotsy's policy explains that US iPhone users may contribute anonymous "experience data" for trend analysis, with an opt-out. It also says Shotsy doesn't sell data. GlucoPal says its iCloud-synced data isn't accessible to the developer.
Accounts, cloud sync and where your data lives
| App | Account | Where data is kept |
|---|---|---|
| JabKeeper | None | Only on your iPhone, excluded from device backups |
| GlucoPal | Not needed | Your device and your own iCloud |
| Shotsy | Not needed on iPhone; Google sign-in on Android | Your device and your private iCloud database; Google Firebase on Android |
| Glowise | Optional; guest mode available | On your device in guest mode; synced to the cloud when you log in |
| Glapp | Account-based | Synced across iPhone, Android and web |
| Pep | Sign in for backup | Backed up when signed in |
| DreamMe | Phone number, Google or Apple sign-in | Supabase servers |
Neither approach is simply "private" or "unsafe". Apps that sync through your own iCloud keep data within your Apple Account and let you restore it on a new phone. Apps with their own accounts and servers can offer web access, Android and multi-device sync, but your diary is held by the developer and its service providers. On-device apps keep your diary off every server, but if you lose your phone, you lose your diary.
Questions to ask before you choose
- Does it need an account? If so, what does it ask for: an email, a phone number or a sign-in with Apple or Google?
- Where is your diary stored? On the device, in your iCloud, or on the developer's servers?
- Does the label list "Data Used to Track You"? If so, which types, and does the privacy policy explain why?
- What happens to your data for research or AI features? Look for opt-outs and plain explanations.
- Can you export or delete your data? Check the app's settings and privacy policy before you build months of history.
How JabKeeper handles your data
JabKeeper was designed so that the developer never receives your diary. Your doses, sites, symptoms, weight and food entries are stored in a local database on your iPhone, excluded from device backups. There's no account, no cloud sync, and no advertising, analytics or crash-reporting SDK. Purchases and restores go through Apple.
Apple Health, Calendar and notifications are optional and only requested when you turn them on. With permission, JabKeeper reads and saves body weight and writes the calories you log to Apple Health. Dose records are never written to Health. Delete the app, and the diary goes with it. Full details are in our privacy policy.
The trade-off is the one described above: no backup and no second device. If that matters more to you than keeping your diary off every server, an iCloud-synced app is likely a better fit. We compare one directly in Shotsy vs JabKeeper.
A GLP-1 diary that stays on your iPhone
No account, no cloud and no data collected. Free to start, $9.99 once for everything.
For price, features and devices alongside privacy, see our roundup of the best GLP-1 tracker apps.
Sources
- App privacy details on the App Store, Apple Developer: definitions of each privacy category.
- US App Store listings, App Privacy sections, checked 14 September 2026: Shotsy, MeAgain, Glowise, GlucoPal, DreamMe, Dose AI, Pep, Glapp, GLP AI and Medisafe.
- Privacy policies: Shotsy, GlucoPal, Glowise, DreamMe, and Glapp's website.
Frequently asked questions
Which GLP-1 tracker app is the most private?
Judged by App Store privacy labels, JabKeeper is the only app in our comparison that declares Data Not Collected. GlucoPal, Shotsy, Medisafe and Glapp declare no data used to track you. Labels are self-declared, so read each privacy policy too.
What does Data Not Linked to You mean?
It means the developer collects the data but says it is not connected to your identity. The data is still collected.
Where can I see an app's privacy label?
Open the app's App Store page and scroll to App Privacy. Tap See Details for the data types and the purposes they are used for.
Does JabKeeper back up my diary?
No. JabKeeper keeps the diary only on your iPhone and excludes it from device backups, so it does not transfer to a new phone. That is the trade-off for collecting no data at all.