Pick your track
Strength
- Progressive bodyweight loading
- Day 1 push-up holds to week-4 compound circuits
- No equipment, no gym membership
- 28 daily challenges, fixed end date
28 days. One end date. No excuses.
You've quit before. This time there's a fixed end date, a daily challenge, and a small group that notices when you miss a day.
FitSphere is a fitness app for people who want to complete a 28-day plan with daily challenges, progress tracking and a small accountability squad.
14-day free trial. US$9/month after. iOS only.


The three promises
You see your finish date before you sign up. It doesn't move. That's the deal.
Open the app. See one challenge. Tap Done. Under 30 seconds. That's the whole thing.
Five to eight people starting within 48 hours of you. Anonymous. They see your tick, or your gap.
Strength, cardio or mobility. One choice, then your 28 days begin. No “surprise me.”
Pick your track
Pick your track
Run anywhere
Desk workers
Try it now
Strength: 28 daily challenges built around progressive bodyweight loading. From day 1 push-up holds to week-4 compound circuits. No equipment needed.
The daily loop
Home screen. Day X of 28. Your current streak. Your fixed finish date. Nothing else fighting for attention.
One card. 140 characters or less. Clear, physical, doable today. No choice, no library, no decision fatigue.
One button. No form, no camera, no notes. The tick lands in your squad's roster. Logged in under 30 seconds.
Tap Done. Your real numbers: days logged, streak, squad check-ins.
Plain answers
Your end date doesn't move. Your streak breaks. Two of your squad see a gap where your tick should be. Miss two in a row and you'll get a quiet nudge, not a shame spiral. Start tomorrow.
No. All three tracks are designed for wherever you are. Floor space is enough for strength and mobility. Cardio runs outside. Nothing to buy.
Five to eight people who started within 48 hours of you. You see anonymous daily ticks, no names, no messages, no leaderboard. Presence is the point, not competition.
Day 28's challenge is named “Finish Week 4.” You tap Done. Full screen. Real numbers: days logged, streak, squad check-ins. Then a quiet prompt for month two. That's the finish.
Day 14. You'll see the paywall with your streak and your fixed end date. You know exactly what you're buying: 14 more days to the finish. US$9/month.
You've quit before. This one has an end. Start today and we'll show you the date you finish.
iOS only. 14-day free trial. US$9/month after that.