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Tap the plus button on the main Vials screen. Enter a vial name and a starting quantity in mg, such as 30 or 30 mg. Add at least one person’s name or nickname. A saved quick-log quantity is optional. Tap Save. If a detail needs attention, the app shows a message.

Yes. Add up to four people while creating a vial, or use Add person on the vial’s detail screen. All entries are kept on the same iPhone. These names are labels for your records, not separate accounts. Anyone who opens the app can see them.

A saved quantity is an amount you type for convenient logging. Tap the plus beside a person and confirm Subtract quantity. To enter a different amount, choose Other amount. The app does not choose or recommend an amount for you.

Open the vial and tap the person’s row. Edit the name or saved quick-log quantity and tap Save. Changing a saved quantity does not change entries already recorded.

Open the vial’s Activity section and tap an uncorrected removal entry. Enter the correct quantity and confirm. Both the original entry and its correction remain visible, and the estimated balance is updated.

On the main Vials list, tap the ellipsis beside the vial. Choose Delete vial and confirm. This removes the vial, its people, and its activity from the app. This cannot be undone in the app.

The balance subtracts recorded quantities from the starting quantity you entered. It cannot account for unrecorded removals, spills, incorrect entries, or other losses. Check your entries and the vial itself; do not use the balance to make a medical decision.

Yes. Adding vials, logging quantities, viewing activity, and deleting records work locally. Visiting this website, emailing support, and downloading the app or updates require the relevant internet services.

The current app has no accounts, device-to-device sync, or operator-provided restore service. It asks iOS to exclude its record file from backups. Apple’s backup and restoration behavior can vary; do not rely on recovery being available. We cannot retrieve your records through the app. See the privacy policy for more detail.

Do not assume the latest change has been saved. Note the error and contact support with your iPhone model, iOS version, app version, and the steps that led to it. Avoid deleting or reinstalling the app as a first troubleshooting step, since doing so removes local records.

Support can help you use the app. We cannot recommend a dose, explain reconstitution, convert volume or syringe units, or advise whether a product or vial is appropriate to use or share. Ask a licensed healthcare professional about medical questions.