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Fast & Bear It

Your stomach's about to get loud. Might as well make it fun.

Meet Growls, a determined little bear who climbs mountains while you climb toward your fasting goals. Every growl from your belly? That's just Growls cheering you on.

Download for iOS 100% free. Seriously. No subscriptions. Ever.

Here's the bear necessities

Pick a challenge. Watch Growls climb.

Hit checkpoints. Reach the summit. Look good doing it.

  • 12, 18, 24, 36, or 48 hours (or custom)
  • Tap flags as they light up to earn coins
  • Give Growls water (and yourself!)
  • Track real metabolic milestones as you climb
Fast & Bear It trail map screenshot showing Growls climbing the mountain

Bear witness to your progress

Tiny bear climbs. Real milestones.

As time passes, Growls scrambles higher up the mountain. Each checkpoint represents actual science - fat burning, autophagy, cellular cleanup. Which you can read, but mostly it's just really satisfying to watch a tiny bear conquer a peak.

Fat burning begins
Autophagy window
Cellular cleanup
Summit momentum

Dress for the climb

Outfit Growls for every summit.

Earn coins. Spend them on the latest mountain climbing fashion. Outfit Growls in everything from cozy sweaters to epic summit gear. Because if you're going to fast, you might as well look good doing it.

Cozy SweaterWarm up for the early miles.
Trail ScoutClassic climbing kit.
Summit CapeVictory flair unlocked.
Peak ExplorerLegendary look for long fasts.

Summit celebrations

Plant that flag and share the win.

Finished your fast? Growls plants that flag at the top. Share your victory with friends and watch them wonder why a cartoon bear is so proud of you.

Fast & Bear It share card showing Growls with willpower unlocked

100% FREE. SERIOUSLY.

No subscriptions. No premium unlocks. Ever. We're not here to nickel and dime you while you're hungry. That would be un-bear-able.

Fasting that growls

Everything you need for the climb.

Can you bear it?

Download Fast & Bear It and give your hunger a mascot. Growls is waiting at the trailhead, ready to climb. Your stomach's going to growl anyway. Might as well have a bear to show for it.

Download for iOS

Time to bear down and get fasting.

Important fasting disclaimer

Fast & Bear It is for entertainment and habit support only. The app does not provide medical advice, diagnosis, or treatment and is not a medical device. Always consult a qualified healthcare professional before starting or changing any fasting plan.

Do not use fasting if you are under 18, pregnant or breastfeeding, have a history of eating disorders, are underweight, or have medical conditions that could be affected by fasting (including diabetes, kidney, liver, or heart conditions). Stop fasting immediately and seek medical care if you feel unwell, dizzy, faint, or experience concerning symptoms.

For full details, review the Terms of Service and Privacy Policy.

Support

Have questions, feedback, or need help with Fast & Bear It? We're here for you.

support@ensonova.com

We typically respond within 24-48 hours.