For personal trainers

Every session,
counted.

The session tracking app for personal trainers. One number for every client: sessions left. Check it off between sets. Sell the next pack before they hit zero.

Download on the App Store

Free for your first 3 clients. iPhone only.

Up next Today
SM
Sarah Mitchell
6:00 AM
9/10
ML
Marcus Lee
7:00 AM
2/10
JB
Jordan Blake
8:00 AM
14/20
Running low
ML
Marcus Lee
2 left
TN
Tom Nguyen
0 left
9:41●●● ᯤ ▮
Today
Tuesday, Sep 8
SM
Sarah Mitchell
6:00 AM · Completed
9/10
ML
Marcus Lee
7:00 AM
2/10
JB
Jordan Blake
8:00 AM
14/20
ER
Elena Ruiz
10:00 AM · with Chris
5/10
CO
Chris Okafor
10:00 AM · with Elena
3/5
Running low
ML
Marcus Lee
2 left
TN
Tom Nguyen
0 left
1 tapto check a session off
0accounts, servers or logins
2 waysto sync your calendar
$0for your first 3 clients

Built for
the floor.

Not the front desk. Everything happens in the seconds between sets, on your phone, one thumb.

Check off from the home screen

The widget shows who's up. Tap the circle, the count drops. No app open.

Calendar, both ways

Bookings land in Apple or Google Calendar. Move one there and Decem follows.

One tap confirmations

Book, and the text is drafted with a calendar invite attached. You hit Send.

Yours, on your phone

Clients live on your iPhone and your iCloud. No Decem account, no Decem server.

Booking never touches the count.
Checking off does.

A cancelled Tuesday costs nobody a session unless you say so. The number you see is the number that's true.

Priced for
one trainer.

Not a studio. Not a franchise. One person with a client list.

Free
$0

Up to 3 clients. Every feature, no trial clock.

Pro
$7.99 /month

Unlimited clients and Insights. Or $59.99 a year.

Lifetime
$149.99 once

Everything, forever. No renewals.

Prices in CAD. Shown in your local currency on the App Store.

Questions
trainers ask.

The short answers. Email if yours isn't here. Still counting on paper? Read how to keep track of client sessions or grab the free spreadsheet template.

How do I keep track of client sessions with Decem?

Add a client, sell them a pack of sessions, and book them. When a session happens you check it off and the count of sessions left drops by one. Booking never changes the count; only checking off does.

Is Decem free?

Yes. Free for your first 3 clients with every feature and no time limit. Decem Pro unlocks unlimited clients and the Insights report, monthly, yearly, or as a one time lifetime purchase.

Does it work with Apple Calendar or Google Calendar?

Yes. Every booking is added to the calendar you choose. Move or delete the event there and Decem follows. Type a client's name into the Decem calendar and it becomes a booking.

Can I enter clients who are already partway through a package?

Yes. When you sell a pack you can set the purchase date and how many sessions have already been used, so Decem picks up exactly where your notebook or spreadsheet left off.

Where is my client data stored?

On your iPhone and, if you turn on sync, in your own iCloud. Decem has no account, no server and no analytics. You can export everything to CSV or delete it all at any time.

Is Decem an alternative to MindBody or Trainerize for a solo trainer?

Decem is built for one trainer with a client list, not a studio with a front desk. It does the counting, booking, payments and renewals a solo trainer needs, without an enterprise subscription.

Start counting
today.

Download on the App Store

Free for your first 3 clients. No account to create.