Privacy Policy

Last updated September 15, 2026

Decem is a client management app for personal trainers, made by Victor Ivanescu. This page explains what the app does with your data in plain language. The short version: your data stays with you.

What Decem stores

Decem stores the information you type into it: your clients' names and contact details, the packages they've bought, their scheduled and completed sessions, payments you record, and any notes, goals or measurements you add. All of it is stored on your iPhone and, if you turn on iCloud sync, in your own iCloud account.

Where it lives

On your device. If you turn on iCloud sync, Decem also stores a copy in your personal iCloud account so your data follows you to your other Apple devices. That copy is in your iCloud, under your Apple ID, protected by Apple's encryption. Decem has no server of its own and no way to read it.

What Decem sends to us

Nothing. Decem does not have user accounts, does not require you to sign up, and does not transmit your client data to Decem or to anyone else. There is no analytics tracking inside the app and no advertising.

Calendar access

If you enable calendar sync, Decem asks for permission to read and write events in the Calendar app on your iPhone. It uses this to add your training sessions to a calendar you choose and to notice when you move or delete those events. Decem only reads events it created and, if you allow it, checks other events for scheduling conflicts. Calendar data is never sent anywhere.

Notifications

If you enable notifications, Decem schedules reminders on your device, for example asking whether a session happened or warning that a client is low on sessions. These are local notifications generated on your iPhone. No push server is involved.

Purchases

Decem Pro subscriptions and the lifetime purchase are handled entirely by Apple through the App Store, under your Apple ID. Decem checks with Apple whether a purchase is active and stores nothing else about it. No third party billing service is involved, and your clients' data never touches the purchase.

This website

decemapp.com is a static site. It has no forms, no accounts, no cookies of its own and no analytics.

Your clients' data

You are responsible for the client information you enter into Decem, the same as you would be for a notebook or a spreadsheet. Decem gives you tools to keep it private, but how you use it is up to you.

Deleting your data

Delete a client in the app and everything about them is gone. Settings has a "Delete everything" button that wipes every client, package, session, payment and note from the app and, if iCloud sync is on, from your iCloud as well. Deleting the app removes all local data. You can also remove Decem's data from iCloud yourself in Settings, Apple ID, iCloud, Manage Storage.

Children

Decem is for adult trainers and is not directed at children under 13.

Changes

If this policy changes, the new version will be posted here with a new date.

Contact

Questions about privacy: hello@decemapp.com