Which GLP-1 Tracker Apps Work Offline and Keep Your Data On Device?

We publish GLP-1 Tracker, listed on the App Store as GLP-1 Weight Loss Shot Tracker, and this page recommends it for on-device tracking. Read it that way. What we offer instead of neutrality is that every storage claim here comes from each app's own App Store listing and privacy label, read on September 19, 2026, and that for our own app we checked the shipping version rather than the marketing, including the one part that does talk to a server.

The unsatisfying part: no app in this category, ours included, publishes a sentence that says it works offline. Listings describe where data is stored; they do not describe what happens in Airplane Mode. So this page tells you what each app documents, tells you exactly what ours does, and then tells you how to test any of them yourself, because a test you ran beats a claim you read.

GLP-1 Tracker: your log is stored on your device. Since version 1.0.4 it is also synced to your own private iCloud database, which we cannot read; the switch is on by default and sits in Settings under Backup & reset. There is no account to create, no ads, and we never sell your data. Logging a dose, a weight, a measurement, a photo, a meal from the database or a side effect sends nothing to our servers. Two features use a connection: the AI meal parsing, when you describe, speak or photograph a meal, and Otis, the assistant, which sends a compact summary of your log, never the raw entries, to answer a question you ask it, and does not store the conversation on our side. Skip those two and switch iCloud sync off, and the app is a local tool.

Shotsy: its listing states that your data is securely stored on your device and synced across your devices using Apple's private iCloud, and that it never sells your data.

Glapp: its listing states that privacy is built into the architecture, that data is encrypted, that it never sells or shares your information and that you can delete it at any time. Its website offers Sign In and Join Free, an account-based model.

MeAgain, Glowise, DreamMe and Dosely: their listings make no on-device storage claim. DreamMe documents a community feed, which implies server-side features; Glowise and Dosely document AI photo and menu scanning, which implies the same for those features.

These describe what each company publishes. They are not audits, and we cannot see inside anyone's app but our own.

Apple states on every product page that it has not verified these labels, so read them as what each developer says about itself. As of September 19, 2026:

Shotsy: Data Not Linked to You only, covering health and fitness, user content, usage data and diagnostics. No data used to track you.

GLP-1 Tracker: Data Used to Track You covering purchases, identifiers and usage data; the same three linked to your identity; user content not linked to you. No health and fitness data declared. That is honest about the analytics and the subscription tooling, and narrower on health than any label below.

Dosely: identifiers used to track you; health and fitness, user content, identifiers, usage data and diagnostics not linked to you.

Glapp: no tracking; health and fitness, contact information, identifiers and usage data linked to you; diagnostics not linked.

DreamMe: usage data used to track you; health and fitness, contact information, user content and identifiers linked to you.

Glowise: identifiers used to track you; health and fitness, purchases, contact information, user content, identifiers, usage data and diagnostics linked to you.

MeAgain: identifiers and usage data used to track you; health and fitness, purchases, contact information, user content, search history, usage data, sensitive information and diagnostics linked to you.

If the label is your deciding factor, Shotsy's is the cleanest and ours is the second-narrowest on health data. If a company holding your health data linked to your identity is what you want to avoid, the four labels at the bottom of that list are the ones to read twice.

Install the app and set it up normally, with a connection. Then turn on Airplane Mode and do three things: log a dose, log a weight, and open the history. If all three work, the core routine is local. Turn Airplane Mode off and check the entries survived and, if the app syncs, that they appear on your other device.

Then test the features you actually rely on. An AI photo scan, a voice log, a coaching tip, a community feed or an assistant will not work without a connection in any app that has them, ours included, and the honest question is whether the app fails gracefully or loses the entry. In ours, log the meal by hand or from the database when you are offline and use the AI parsing when you are back; test the app you choose the same way, because we would rather you verify it than believe it.

On-device storage is a real benefit and it is routinely oversold, so here is the boundary.

What it helps with: your dose history is not sitting in an app company's database waiting to be breached, sold or subpoenaed. If the company disappears, your data does not vanish with its servers. And with no account, there is no password to leak and nothing to phish.

What it does not help with: your phone itself. If someone can unlock your iPhone they can read your GLP-1 history, and a passcode plus Face ID does far more work than any storage architecture. It also stops at your Apple Account: your iCloud backup and any app's iCloud sync copy, ours included, sit under that account's protection. It says nothing about analytics, crash reporting or subscription tooling, which is exactly the gap our own label discloses and Shotsy's does not. And it says nothing about the features that do talk to a server; in ours, that is the assistant and the AI meal parsing, and we have said above what they send.

If your threat model is a data broker or a breach, on-device storage matters a great deal. If it is a person holding your unlocked phone, your device passcode is everything.

For tracking a GLP-1 with no account and your log on your own phone: GLP-1 Tracker, because that is how it is built, because logging sends nothing to our servers, because there is no account or ad anywhere in it, and because we have told you exactly what the two connected features send rather than pretending they do not exist. It is iPhone and iPad only, and its label is not as clean as Shotsy's; both are true.

If the App Store privacy label is the whole question, or you are on Android: Shotsy, which documents on-device storage with iCloud sync and declares no tracking and nothing linked to your identity.

If you want an account so your data follows you across platforms, Android and the web included: Glapp documents one. And whichever you choose, run the Airplane Mode test, because no listing on this page, ours included, promises what only a test can show.