Den app iconDen Get Den
Girl Cub, a brown bear cub with a green headband and bow, hands on hips

Raise your cub.
Get strong.

Den is an iPhone fitness app where your real-life training shows up in a bear cub. You put in the work. Your cub stands taller, earns new gear, and its den grows.

Start your den See how it works

For iPhone. Paid subscription, no free tier.

Boy Cub, a brown bear cub with a green headband, hands on hips

Mission

Den measures what you can do, not how you look.

  • ×No calorie counting.
  • ×No weight tracking.
  • ×No body photos.
  • ✓Your cub grows in posture, gear and home. Its body shape never changes.
  • ✓Rest days are part of the plan. They protect your streak instead of breaking it.
“They're not gaps. They're how the work sticks.” On rest days
“Starting easier and staying consistent beats starting hard and quitting.” On intensity

Four stats

Every session feeds one of your cub's four stats.

Log a lift, a run, a stretch or a real rest day. The right bar moves.

Strength

From resistance work

Endurance

From cardio

Mobility

From stretching and yoga

Recovery

From rest days, sleep and a steady schedule

How it works

A 14-step setup, then a plan built around you.

Pick your cub

Choose a boy or girl cub, pick a fur coat (every coat is free), and give your cub a name.

Set your goals

Tell Den what you're after and how you train: experience level, training days, session length, time of day and intensity.

StrengthMuscleLosing fatEnduranceFlexibilityBuild a habitWellbeing

Tell us your limits

Say what equipment you have and flag any body areas to avoid. Nothing in your plan will put load on them.

Full gymHome weightsBodyweightOutdoors
NeckShouldersBackElbowsWristsHipsKneesAnkles
Instructor Bear

Your AI coach

Meet the Instructor Bear.

Week 3, day 2. You rated Monday "just right," so today keeps the same weights and adds one set. Knees stay off the list, like you asked. 35 minutes. Let's go.
  • Writes your weekly plan and short pep talks before and after sessions.
  • Uses only your setup answers and logged workouts. Never your name or contact details.
  • Edit, swap, shorten or skip anything. The plan bends to your week.
  • Rate each session (too easy, just right, too hard) and the next plan adjusts.
  • Prefer to go it alone? Decline AI plans and log workouts yourself.

Plans are not medical advice.

Inside the den

Quests, gear, friends and the tools to train.

Quests and rewards

Daily, weekly and seasonal quests like "Train three days" or "Take a real rest day." Earn coins and XP. Seasonal events like First Thaw bring limited drops.

Wardrobe and store

Dress your cub in gear for its head, torso, legs, feet and accessories. Spend what your training earned.

Friends and cheers

Add friends, send cheers, climb a weekly leaderboard, browse the video feed and compare side by side. Profiles can be public, friends-only or private.

Guided workouts

Follow a guided session or log one by hand. Browse the exercise library and watch your effort trends over time.

A den that grows

The home screen is your cub's den. Keep showing up and it fills in around you.

Rest that counts

Rest days, sleep and a steady schedule raise your Recovery stat and keep your streak alive.

DenPlanFeedCubFriendsStore

Membership

One plan. The whole den.

Den is a paid subscription with no free tier. Every member gets everything.

  • The Instructor Bear AI coach and your weekly training plan
  • Your cub, every fur coat, the wardrobe and the full den
  • Quests, seasonal events, friends, feed and leaderboard
  • Guided workouts, manual logging and the exercise library
Download on the App Store

Available for iPhone. Cancel anytime from your Apple subscriptions.