Start with just 18 a day
The app is built around a habit small enough to keep: 18 sit-ups daily. Consistency first, volume later.
A BigBeeFit appLive on the App Store
SitUp - Workout DailyCrunch
SitUp - Workout DailyCrunch is a sit-up counter for iPhone and Apple Watch, built around an easy habit: 18 sit-ups a day. The rebuilt SwiftUI app counts reps automatically with Camera AI or Apple Watch sensors, offers five training modes, and tracks your history with a calendar, long-term trend charts, and a home screen widget. Apple Health sync is optional, and premium users get iCloud sync across devices.
App details
18 sit-ups daily, flicker free
Category, age rating, privacy state, and compatible devices below come from the live App Store listing.
Free · In-App Purchases · Designed for iPhoneHealth & FitnessAge 9+5.0 from 1 App Store ratingsPrivacy: Data Not Collected
Latest releaseVersion 2022.1.0 · Apr 30, 2026
Minimum OSiOS 17.0+ · macOS 14.0+ · watchOS 10.0+
LanguagesEnglish + Simplified Chinese
DevicesiPhoneApple WatchMac (Apple Silicon)
Why it works
Designed around one simple idea.
Every feature in this app exists to support one goal: make your fitness habit as easy to keep as possible.
Counting that doesn't interrupt you
Camera AI watches your form and counts reps, or let Apple Watch sensors do it from your wrist — no tapping between crunches.
Trends you can actually see
Calendar history, long-term trend charts, and a home screen widget keep the streak visible every day.
Key features
What you get when you download.
Here are the features that matter most. See the full feature list for everything included.
Camera AI rep recognition
The front camera detects each sit-up and counts automatically, the same hands-free approach as CounterUps.
Apple Watch sensor counting
Count reps from your wrist with Apple Watch motion sensors when the camera isn't convenient.
Five training modes
Count, time, calorie, interval, and free modes cover structured plans and quick spontaneous sets alike.
Calendar, trends, and widget
Review any day's session in the calendar, watch long-term trend charts, and keep today's count on your home screen.
Who it's for
Who this app is built for.
Find yourself in one of these? This app was made with you in mind.
Beginners who quit before
18 a day is deliberately easy. If every previous ab routine collapsed in week two, start with a number you can't talk yourself out of.
Apple Watch workout fans
If the Watch is already on your wrist for runs and rings, it can count your sit-ups too.
People tracking core volume over time
Trend charts answer the question a notebook can't: am I actually doing more than last month?
Pricing
Start free, upgrade if you love it.
Transparent pricing with no surprises. All BigBeeFit apps start with a free trial or a free download — upgrading is always optional.
Free download
Free
Start on the App Store
SitUp DailyCrunch is free to download — daily counting, training modes, and calendar history included.
- Automatic rep counting
- Five training modes
- Calendar history and widget
Premium options
See current App Store prices
Monthly, annual, or bundle
The current listing shows a monthly membership, a continuous annual membership, and the Premium Plus Bundle, with iCloud sync among the premium perks.
- Monthly membership
- Continuous annual membership
- Premium Plus Bundle
FAQ
Frequently asked questions.
Quick answers about how the app works, what's free, and what syncs where.
How does the app count sit-ups automatically?
Two ways: Camera AI watches your movement through the front camera and counts each rep, or Apple Watch motion sensors detect the movement from your wrist. Manual entry is also available.
Why 18 sit-ups a day?
Because a habit you keep beats a workout you quit. 18 reps takes about a minute, which makes the daily streak realistic — and the app's training modes let you go well beyond it whenever you want.
Does it work with Apple Watch?
Yes. The current App Store listing supports Apple Watch (watchOS 10+), including sensor-based rep counting from the wrist.
Is SitUp DailyCrunch free?
Yes, the download is free with counting, training modes, and history included. Premium memberships add iCloud sync and more — see the live listing for current prices.
Ready to get started?
Download and start your free trial today. No commitment — try it and see if it fits your routine.