MammothFit
Every session grows the herd
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Your week's kilos become gorillas, then sumo, then a herd. No spreadsheet to decode. No ads, no subscription, no account. Data never leaves the device.
You put in the work this week. Now you can see it.
MammothFit weighs everything you lift and stacks it into a herd — a gorilla, a sumo, a mammoth. Every kilo counts: kettlebell swings, a heavy squat, ten seconds of front lever, the last kilometer. One glance tells you whether the week added up or slipped. No spreadsheet to decode. Just the herd you earned.
YOUR HOME SCREEN IS THE TROPHY
Every session adds animals to your home screen. The wall starts empty on Monday and fills with exactly what you earn — the silhouettes on it weigh what you lifted, to the kilo. Cross six tonnes in a week and a mammoth walks in. Open gallery mode, save the wall, and your week becomes your lock screen.
That's the point of proof — you don't have to argue it. A big week is two mammoths. A lighter one is a gorilla: still real, still yours. The picture reads the same for everyone — women and men, first week or tenth year, beginner or beast. Earned pride, not a participation badge.
And the flex finishes where the work does. The moment you log your last set, the trophy is already made — a clean black-and-gold card, good enough to send to the group chat without a caption. The memo and the flex are one act.
THE HERD IS REAL WORK
- Kettlebell complexes, done right. Build the complex, set work / rest / rounds — EMOM style if you want — and run a full-screen circuit timer with an arena buzzer that cuts through music and earphones. A live countdown stays on your lock screen.
- Calisthenics holds that count. Front lever, planche, L-sit — timed to the second, with hold PRs to chase.
- Bodyweight becomes real volume. Biomechanical factors convert pull-ups, dips and push-ups into honest kilos, so the herd is never a guess. The formulas are public.
- Cardio in the same log. Pace and distance sit next to your lifts, not in another app.
BUILT FOR HYBRID ATHLETES
If you swing, hold, lift and run in the same week, half of that work usually goes unseen. MammothFit is built for all of it — one log, one herd.
SEE THE PROGRESS UNDER THE PRIDE
A dashboard per modality: estimated 1RM, kettlebell density, running pace, longest hold. PR milestones mark the moments the work moved.
YOUR AI COACH, YOUR TERMS
Export a clean prompt to the ChatGPT or Claude you already use, then paste the plan back as a checklist you can train from. No monthly AI fee. Your data never leaves the device.
NO CATCH
- No ads. No subscription.
- One-time Pro unlocks unlimited AI imports, themes, and future animal packs.
- Local-first and private. No account required.
Log the work. Earn the herd. Show what a hard week looks like.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
What's new:
- Weekly AI plans (Pro): a whole week at once. Pick how many days and how you split them, copy the request, paste the reply back, and the week lands in your calendar
- Dinosaur pack (Pro): dress your herd as dinosaurs. Velociraptor, stegosaurus, ankylosaurus, spinosaurus and triceratops, each drawn at its real size
- 43 new exercises: chest, back, shoulders, arms, legs and core, including gym staples like lat pulldown, leg press and cable crossover. Names don't name the equipment, so use them with dumbbells, a barbell or a machine
- Planned workouts can move: change the date of a planned session, and switch on "Also move the later planned days" to shift the rest of the week with it
- A share card for cardio days: the distance you covered, big, with time, best pace, heart rate and calories beside it. When a day has both lifting and cardio, you can share either card: the herd or the numbers
- Smoother typing while you log, and a fix for the share poster occasionally showing no herd at all
The developer, Yugo Yoshino, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yugo Yoshino
- Size
- 5.5 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 6 more
- English, French, Hindi, Japanese, Korean, Spanish, Traditional Chinese
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- MammothFit Pro $2.99
- Copyright
- © 2026 Yugo Yoshino